Home

1 - Controller.com

1. LEARJET 25 DEF Page 1 of 16 MAINTENANCE MANUAL N 4998S Date 7 9 ACTT OS 8 Lnd s S Y The following is a list of all scheduled inspections contained in the Learjet Inspection Program and the overall interval for each inspection Complied With J Due 1 Phases A1 6 Each A Phase Due Every 300 Hours or 12 Months 7 S 4 912 2 Phases B1 6 Each B Phase Due Every 600 Hours or 24 Months 10 or 3 Phases C1 6 Each C Phase Due Every 1 200 Hours or 48 eins S b p S 6 g 4 Phases D1 6 Each D Phase Due Every 2 400 Hours or 96 Months 2 7 JA qe Lt 5 3 000 Landing Inspection Due Every 3 000 Landings GT 597 6 Major Landing Gear Inspection Due Every 6 000 Landings et YX 7 12 Year Airframe Inspection Due Every 12 Years or 6 000 Landings a S a at 8 12 000 Hour Airframe Inspection Initial Due at first 12 000 cAD 0 Hours Repeat Due Every 6 000 Hours thereafter Thrust Reversers Dee Howard Wing 300 Hour M 600 Hour q 1200 Hour f 2400 Hour L 12 Year i LEARJET 25 DEF N 5 Date 7 9 l FAR 91 411 Altimeters L H RHH Stby System FAR 91 413 Transponder RVSM vcon Avcon RVSM Air Data Mont 24 Month RVSM Inspections 12 Month 24 Month 4 Month RVSM Alt Hold 12 Month First Aid Kit 12 Month Weight amp Bal 36 Month 135 Register ELT 12 Month Clock Battery 12 Month Avionic Insp D Month 135 Fuel Cal 12 Month 135 Compass Card 12 Month 135 Emer Equip 12 Month
2. Aileron Hinge Bracket Assembly 2322530 oa 20 000 Hours gt E2750002 Flap Nose Roller Bushings NAS76A4 1 200 Hours 5f OS 8 H2750009 Outboard Flap Track Support 2322512 Machined from bar stock NOTE The 3 L H outer support mates with the 5 L H inner support The 4 R H outer support mates with the 6 R H inner support These mating parts are replaceable as matched sets only Forged parts are not life limited and are identified by a 497 following the basic part number For example 2322512 3 497 will be a forged part Parts machined from bar stock will be determined by only the basic part number For example 2322512 3 11 900 Hours LZ FOO E2750015 Flap Assembly 2325010 NOTE 2625010 assemblies are not life limited 19 300 Hours 7 S00 F2750017 Inboard Flap Hinge Fitting on flap 2625023 NOTE Inboard flap track hinge fitting 2625023 is riveted to wing flap assembly 2625010 which has no specific life limit and does not require replacement 20 000 Hours F2750019 Outboard Flap Hinge Fitting on flap 2625024 NOTE Out board flap track hinge fitting 2625024 is riveted to wing flap assembly 2625010 which has no specific life limit and does not require replacement 20 000 Hours AD A E2750021 Inboard and Outboard Flap Track Assembly 2325022 20 000 Hours c A E2750023 Inboard Nose Roller Track Flap 2322511 20 000 Hours AO X E2750024 Outboard Nose Roller Track Flap 2322512 20 00
3. EXAMPLE Total number of sod runway landings 1000 Total number of hard surface runway landings 4330 6 67 x 1000 1 x 4330 11 000 computed total landings In this case there are 11 000 computed total landings This means that there are only 1000 computed total landings allowed before the strut must be replaced ent LEARJET 25B C D F Page 14 of 16 MAINTENANCE MANUAL 5 11 00 E3211089 Nose Gear Strut and Actuator combination of hard surface run way landings and sod runway landings Aircraft approved for unpaved runway operation NOTE To compute total number of landings apply the following formula 4 x LSOD 1 x LHARD 20 000 landings The formula reads four times the number of sod runway landings plus one times the number of hard surface runway landings shall be equal to or less than 20 000 landings I EXAMPLE Total number of sod runway landings 1500 Total number of hard surface runway landings 5000 4 x 1500 1 x 5000 6 000 5 000 11 000 computed total landings In this case there are 11 000 computed total landings This means that there are only 9 000 computed total landings allowed before the strut must be replaced P3211091 DELETED F3211094 DELETED Q3211099 Main Gear Strut with Cylinder Assembly 3141100 16 500 Landings VA G3233004 Emergency air hose assemblies for landing gear emergency extension and emergency braking systems l 12 Years 6 000 Landings _ Te p4 Sj
4. Fuel hose assemblies inside engine nacelle area NOTE On Aircraft equipped with Teflon steel braided hoses these hoses are not life limited and shall be replaced as condition dictates EM 2400 Hours or 5 Years Te my Sez c c G7110022 Hydraulic hose assemblies in the engine nacelle area including hose assemblies attached to the hydraulic pump and terminating at the firewall NOTE On Aircraft equipped with Teflon steel braided hoses these hoses are not life limited and shall be i replaced as condition dictates 2 400 Hours or 5 Years ei a S fef j C E7120042 Engine Yoke Assembly 2351038 20 000 Hours BOK E7120043 Engine Pad Assembly 2351032 9 which consists of the following Bolt 2351032 6 NOTE There may be some variations in the grip lengths among these bolts Refer to the parts catalog for each case There is no difference in replacement lives Nut Lock 2351032 7 Nut 2351032 8 Engine Mounting Rod End REM 6TH Engine Mounting Upper Pad 2351031 3 20 000 Hours DE E7120044 Engine Mounting Bolt Forward NAS464P6A39 20 000 Hours BOK E7120045 Engine Mounting Bolt Lower Rear NAS464P8A68 20 000 Hours ot Dk E7120046 Engine Mounting Bolt Upper Rear NAS464P6L20 20 000 Hours AO K E2740010 Horizontal Stabilizer Hinge Pin 2331028 E7120047 Engine Mounts LM 308 Top Forward Inboard gy SOE 0667 Engine Overhaul 2 46 4 2 e252 2 0 3 J7930003 Engine Oil Vent Ho
5. 135 ICA s Page 2 of 16 ACTT GZS V Land s S154 Complied With Due Mei _ tc 0613 Ti 7 3 25 P me _ LEARJET 25 DEF N 4 ad 6 b Date 7 l ACTT 545525 Lnd s Complied With Due ICA s or S N amp jl 032 4 Total Time _5 92 5 Cycles 5S 7Y JJ el0 f ea m 300 Hour 26V Due is 600 Hour SCAT Due E24 1000 Hour 56499 Due ed 5000 Hour O H FOVS Due Engine 2 S N a HD Z A Total Time 5 85 Cycles _5 l J Cs el IM z 64 4 TR 7 600 Hour S fat T Due BY 1000 Hour SO Due ol 5000 Hour O H G J Due ODT 5 Year Corrosion 4 Due 10 Year Corrosion i 8 08 Due SAJI Compr ed or ly be Mary 5 har Page 3 of 16 PIE 5 Year Corrosion wW A Due 10 Year Corrosion Z l 0 Due 7 7 eo Comp teddat Belt Peata Ane 6600 OSHI GDO CSAJ _ LEARJET 25B C D F Page 4 of 16 MAINTENANCE MANUAL 5 10 29 INSPECTION CHECKS WITH SPECIAL REQUIREMENTS OR INSPECTION CHECKS DUE AT OTHER INTERVALS 1 Description A This schedule is a list of inspection checks which do not correspond with the regularly scheduled inspections within the approved Learjet Manufacturer s Inspection Program or that have special requirements attached to the inspection item B tems listed as due per a vendors recommended schedule will require research to determine the required inspection interval for that item and should be noted for future reference 2 Inspection Items IRN INSPECTION CHECK INTERVAL
6. 25 204 except 25 135 and 25 188 not modified per SSK 972 Replacement of Flap Attach Fittings NOTE Confirm any suspect condition with supporting eddy current or a fluorescent penetrant inspection 1 200 Hours Wf M2812003 Remove outboard wing lower access covers located next to tip tanks Inspect tip tank flapper valves for freedom of movement security uniform contact and general condition Inspect the inner wing structure for fatigue cracks bacterial growth and corrosion If corrosion exists at this location remove all lower surface access plates and inspect remaining wing structure Refer to 28 12 06 Effective on aircraft with P N S 461 tip tank flapper valve installed 24 Months amp l D ie L2812020 On RH and LH wings remove the inboard access covers from WS 72 forward and middle cover and the inboard spar 5 vertical access plate Inspect wing flapper valves for freedom of movement security and general condition inspect adjacent interior structure for corrosion fatigue cracks loose or missing fasteners and bacterial growth A This inspection includes the flapper valves from WS 53 inboard to o A VE i PP 24 Months G E l Q 2 p 7 Fi LEARJET 25B C D F Page 10 of 16 MAINTENANCE MANUAL 5 10 29 R2812011 Defuel tip tanks remove upper access covers and inspect tip tanks as follows a On aircraft equipped with fuel jettison systems using an explosion proof light inspect fuel jettison tubes both
7. C2213010 inspect replace or repair yaw servo clutch type P N 2380066 commutator NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 A 50 51 67 69 thru 73 75 and 79 thru 81 1 800 Hours AJ C2213011 Inspect replace or repair pitch servo clutch type P N 2380066 commutator NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 l A 50 51 67 69 thru 73 75 and 79 thru 81 1 800 Hours A i C2213012 Disassemble yaw servo clutch type P N 2380066 Clean and inspect for corrosion Relubricate assemble and replace motor and clutch brushes as required NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 50 51 67 69 thru 73 75 and 79 thru 81 600 Hours V4 C2213013 Replace yaw servo clutch type P N 2380066 bearings NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 50 51 67 69 thru 73 75 and 79 thru 81 1 800 Hours IM C2213014 Disassemble
8. CABIN P2561005 Perform inspection of life vest Perform inspection in accordance with 7 Manufacturer s instructions A R2620030 Perform ICC Hydrostatic Test of portable hand held fire extinguisher NOTE Portable hand held fire extinguishers may either be hydro tested or replaced at this time lnitial time count for replacement or testing of this item shall commence from the manufacturing date stamped on theitem mX 36 2 12 Years COS low COCKPIT C2213007 Disassemble roll servo clutch type P N 2380066 Clean and inspect for corrosion Relubricate assemble and replace motor and clutch brushes as required NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 50 51 67 69 thru 73 75 and 79 thru 81 A 600 Hours iV C2213008 Replace roll servo clutch type P N 2380066 bearings NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 50 51 67 69 thru 73 75 and 79 thru 81 Tx 1 800 Hours U C2213009 Inspect replace or repair roll servo clutch type P N2380066 commutator NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N
9. NOTE Replacement time applies to primary control systems only Roll pitch and yaw servo cables are replaced as required Refer to Chapter 27 for control cable damage limits 2 400 Hours 478 S WES E2720019 Rudder Installation Surface Hinges and Hinge Support K 20 000 Hours AD F2730015 Primary Elevator Control System Cables NOTE Replacement time applies to primary control systems only Roll pitch and yaw servo cables are replaced as required Refer to Chapter 27 for control c cable damage limits 2 400 Hours d 7 5 5 val 5 LEARJET 25B C D F Page 12 of 16 MAINTENANCE MANUAL 5 11 00 E2730018 Elevator Installation including torque tube bellcranks dual push pull tubes 2434000 and 2334001 20 000 Hours ex E2 30020 Hinge Brackets 2332013 Outboard 2332018 Center and 2332019 Inboard Located on Horizontal Stabilizer Assembly 20 000 Hours ZOK 20 000 Hours AO G2740011 Horizontal Stabilizer Actuator Attach Bolts NAS464P6 NOTE There may be some variation in grip lengths among these bolts Refer to the parts catalog for each case There is no difference in replacement lives 12 Years 6 000 Landings 7 13 06 ZAS 1S R3500054 Oxygen cylinder steel DOT3HT1850 Replace Effective on aircraft equipped with a Dorsal Oxygen System or Dual Oxygen System NOTE Initial time count for replacement of this item shall commence from the manufacturing date stamped on the item 24 Years A ENGINE G7110021
10. aircraft modified per SB 23 24 25 21 6 Installation of Cooling System Compressor Motor Hour Meter NOTE Particular attention should be given to the fan blades in the area of the hub Refrigeration compressor motor hours 1200 Hours fu B2432010 Inspect battery installation as follows Battery cases for condition and that lids are properly secured Structure under batteries for traces of electrolyte or corrosion Battery vent tubes for kinks obstructions and security of attachment Vent fittings and inlet and outlet fittings for obstructions i corrosion and security of attachment 6 Months E S a E2562001 Functional test the drag chute if installed Statically deploy using adequate precautions to check release mechanism Inspect and repack drag chute g _ 3 2 6 Months i ed el Q2620025 Perform ICC Hydrostatic Test of engine fire extinguisher container NOTE Time count for replacement overhaul or testing of this item shall commence from the manufacturing date stamped on the item 5 Years 5 07 o LA 7 P2620042 Check engine fire extinguisher container pressure gage for proper G _ Aa pressure and plumbing for condition and security 6 Months y 2 P WING H2750044 Flap Cam Follower Bearings Perform detailed visual inspection of bearing 4200 Hours 5257 2 H2750047 Sheet Metal Track Attach Fittings Perform visual inspection Refer to 5 10 00 Effective on Aircraft 25 061 25 070 thru
11. inside and outside the tip tank for foreign material grit and dust Perform operational check of fuel jettison shutoff valves and verify that the fuel jettison shutoff valves open and close properly Verify proper operation of the fuel control panel indicator light b Using an explosion proof light inspect interior surface for loose or separated sealant and especially at the bulkhead skin interfaces for bacterial growth and corrosion Bacterial growth is identified by a dark sludge on the skin surface Inspect entire tank for foreign matter dirt and water NOTE Tip tanks may contain a blue gray sludge on the skin surface which is not a bacterial growth c Inspect forward and aft corners of tip tank mount casting for cracks d Inspect conduit inside tip tank filler area for nicks gouges flat spots and holes e Inspect area of the sump drain valve for integrity of tank coating and for any corrosion f Install access covers and refuel aircraft Check fuel tanks and fuel jettison _ shutoff valves when installed for leaks 24 Months 5 e b f 2 P5710145 Inspect inboard dry bay of wing adjacent to fuselage and forward of spar 2 for cracks primer condition and corrosion Check that moisture drain meg J holes are free of obstructions 24 Months F r e 5 JA H5750046 Flap Track Support Fittings Perform detailed visual inspection 1 200 Hours 535 7 E55 7 LEARJET 25B C D F Page 11 of 16 MAINTENANCE MAN
12. pitch servo clutch type P N 2380066 Clean and inspect for corrosion Relubricate assemble and replace motor and clutch brushes as required NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 1 1 21 26 44 47 50 51 67 69 thru 73 75 and 79 thru 81 600 Hours AL 4 C2213015 Replace pitch servo clutch type P N 2380066 bearings NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 103 dated June 1982 or later applicable to P N 2380066 11 21 26 44 47 50 51 67 69 d thru 73 75 and 79 thru 81 1 800 Hours J Q2740021 Horizontal Stabilizer Actuator Perform Overhaul NOTE In order to accomplish this requirement the performing facility must possess the _ required Repair Manuals and Special Test Equipment 600 Hours 5 5 5 5 79 R3500018 On aircraft equipped with a Dorsal Oxygen System or Dual Oxygen System perform ICC Hydrostatic Test on oxygen cylinder steel DOT3AA1800 NOTE Initial time count for testing of this item shall amp OX Te TS commence from the manufacturing date stamped on the item La a 5 Years ut a tn R3500023 Oxygen Cylinder steel DOT3HT 1850 Perform Hydrostatic Test Effective on Aircraft equipped with a Dorsal Oxygen System or Dual Oxygen System NOTE Initial time coun
13. 0 Hours ZU z 62750034 Wing Flap Sector Mounting Bolt which secures Flap Sector l NAS1305 42H 12 Years 6 000 Landings Z 7 27 z 7 c LEARJET 25B C D F Page 16 of 16 MAINTENANCE MANUAL 5 11 00 E2760055 Spoiler Actuator Bolt Nut and Cotter Pin Effective on Aircraft 25 061 and 25 070 thru 25 114 not incorporating AMK 73 1 Replacement of Spoiler Actuator Bracket NOTE In accordance with AD 72 15 03 and SB 24 25 237 500 Hours JA K2812001 Tip tank flapper valves 2323006 5 5 Years JU f J 85210102 Upper Door Torsion Bar Bolts NAS1003 12H Refer to 52 10 01 Effective on Aircraft with 36 inch doors installed and on Aircraft with 24 inch doors installed modified by SB 24 25 52 5 NOTE On Aircraft that have already exceeded 12 Years or 6 000 Landings perform replacement at next 600 Hour 24 5 bp i P Month B2 Inspection 12 Years 6 000 Landings
14. 2380066 11 21 26 44 47 50 51 67 69 thru 73 75 and 79 thru 81 1 800 Hours WV A N3510015 Comply with factory overhaul of B E Aerospace Puritan Bennett crew oxygen masks if installed NOTE On masks that have been in service for more than six years comply with factory overhaul at the next 300 Hour 12 Month inspection 6 Years of if P yi k 14 9570 2 LEARJET 25B C D F Page 5 of 16 MAINTENANCE MANUAL 5 10 29 ELECTRICAL G1222001 Lead Acid Batteries Effective on Aircraft not equipped with captive electrolyte batteries Check or perform the following in accordance with battery manufacturer s service manual a Service battery sump jar if installed b Liquid level check c Top charge battery d Perform battery capacity check or hydrometer test NOTE Interval is the normal allowable period between maintenance activities if no service interval is specifically recommended by the battery manufacturer Because of varied flight profiles certain servicing and maintenance activities may require a more frequent interval or may allow an extended interval depending on environmental and operational requirements and should be adjusted by individual operators Operators should refer to their battery manufacturer s service manual for detailed wri maintenance instructions 3 Months VJ G1222002 Lead Acid Batteries Effective on Aircraft equipped with captive electrolyte bat
15. IR BOTTLES NOTE Inspection and testing of emergency air bottles shall be accomplished at an authorized testing facility using adequate safety precautions or bottles may be exchanged for tested units Initial time count for testing of this item shall commence from the manufacturing date stamped on the item 6 Years R3610043 Emergency Air Bottles P N 6600194 1 2 3 4 5 Perform Visual Inspection and ICC Hydrostatic Test WARNING DO NOT METAL STAMP TAVCO AIR BOTTLES NOTE Visual inspection of the emergency air bottle shall include both interior and exterior visual inspection Initial time count for testing of this item shall commence from the manufacturing date stamped on the item Every 3 Years until 15 Years A A R3610053 Emergency Air Bottles P N 6600194 1 2 3 4 5 Perform X Ray Inspection WARNING DO NOT METAL STAMP TAVCO AIR BOTTLES NOTE Initial time count for inspection of this item shall commence from fr the manufacturing date stamped on the item 9 and 12 Years jV R3610054 Emergency Air Bottles P N 6600194 1 2 3 4 5 Perform Visual inspection Hydrostatic Test X Ray and Magnetic Particle Inspection WARNING DO NOT METAL STAMP TAVCO AIR BOTTLES Naw 09 NOTE Visual inspection of the emergency air bottle shall include both interior and exterior visual inspection Initial time count for testing of this item shall commence from the manufacturing date stamped on the item ee 15 Years
16. UAL 5 11 00 REPLACEMENT SCHEDULE 1 Description A This schedule is a list of equipment which shall be replaced by serviceable components at the intervals specified Items not listed are considered On Condition items and will be replaced only as necessary All intervals are in hours unless otherwise indicated B Replacement Items that are identified by one asterisk are mandatory replacement items by FAA certification basis and cannot be changed increased or deleted without the approval of the certification airworthiness authority These items reflect the contents of FAA approved report 25 S47 which is referred to in the aircraft Type Data Sheet A10CE The inspection tolerances listed in the Inspections section are not applicable to those items with one asterisk C Replacement Items that are identified by two asterisks are part of the manufacturer s recommended maintenance program and can be adjusted according to the tolerances listed in the Allowable Inspection Tolerances section Vendor recommendations service experience and engineering assessment are all factors considered in these recommendations D All item part numbers will not be listed The intent is to replace an item at the specified interval based on use wear stress or fatigue and not based on part number If a part number change affects the time change interval that change will be documented separately The IPC addresses effectivities and replacement spare parts which ha
17. and every 2 Years thereafter d f 7 ahs R3610055 Emergency Air Bottles P N 6600194 6 Perform X Ray Inspection WARNING DO NOT METAL STAMP TAVCO AIR BOTTLES NOTE Inspection and testing of emergency air bottles shall be accomplished at an authorized testing facility using adequate safety precautions or bottles may be exchanged for tested units Initial time count for inspection of this item shall commence from the manufacturing 13 date stamped on the item 12 24 30 Years AZ f R3610059 Kidde Emergency Air Bottle Perform ICC Hydrostatic Test and X Ray Inspection X Ray applies to containers fabricated by welding NOTE Initial time count for inspection of this item shall commence f A from the manufacturing date stamped on the item 3 Years LEARJET 25B C D F Page 9 of 16 MAINTENANCE MANUAL 5 10 29 TAILCONE D2150007 Perform refrigeration compressor motor brush wear inspection Effective on aircraft modified per SB 23 24 25 21 6 Installation of Cooling System Compressor Motor Hour Meter Refrigeration compressor motor hours 600 Hours A HA L2150020 Perform functional test of refrigeration system pressure switch Refer to 21 50 05 Effective on aircraft modified per SB 23 24 25 21 6 Installation of Cooling System Compressor Motor Hour Meter f Refrigeration compressor motor hours 600 Hours y H2150022 Perform a fluorescent penetrant inspection of the air conditioner compressor motor fan blades Effective on
18. ce runway landing only 9 000 Landings F3211075 Main Gear Strut with Cylinder Assembly 2441011 Hard surface runway landings only NOTE Incorporation of SSK 930 Replace ment of Main Landing Gear Upper Cylinder does not zero time the overall assembly to allow an additional 12 000 landings before replacement 12 000 Landings E3211078 Main Gear Actuator Attach Pin 2341109 12 000 Landings IAAD E3211080 Main Gear Actuator Pillar Assembly 2341123 1 and 14 18 000 Landings O E3211082 Nose Gear Strut 2342100 Hard surface runway landings only 20 000 Landings E3211083 Nose Gear Actuator 2317100 Hard surface runway landings only 20 000 Landings Go E3211084 Main Gear Actuator Attach Pin 5441101 20 000 Landings J E E3211085 Main Gear Actuator Pillar Assembly 2341123 18 20 000 Landings AJ E3211087 Main Gear Actuator 2327100 Hard surface landing only 20 000 Landings E3211088 Main Gear Strut with Cylinder Assembly 2441011 and Actuator combination of hard surface runway landings and sod runway landings Aircraft approved for unpaved runway operation NOTE To compute total number of landings apply the following formula 6 67 x LSOD 1 x LHARD 12 000 landings The formula reads six and sixty seven one hundreths times the number of sod runway landings plus one times the number of hard surface runway landings shall be equal to or less than i 12 000 landings
19. ck as preflight check in lieu of 6 month A requirement 6 Months i D1223015 Perform discharge check of PS 835 or PS 855 lead acid emergency power supply battery NOTE Refer to J E T Maintenance Manual TP 329 PS 835 orTP 483 PS 855 Perform discharge check 12 months j C1223021 Perform emergency exit and wing inspection light power supply battery discharge recharge cycle Refer to 12 23 02 6 Months A lal 01223040 Perform discharge recharge reconditioning cycle of GNS 500A N gt standby battery if installed 6 Months d H2130007 Cabin Pressurization System Perform Cabin Leak Rate Check Refer to 21 30 00 NOTE The cabin leak rate check is due 1200 hours from the date of the last 1200 Hour Inspection Phase C1 or last 1200 Hour Cabin Leak Rate Check 1200Hours OZ bP 50 p LEARJET 25B C DIF Page 6 of 16 MAINTENANCE MANUAL 5 10 29 H2431017 Battery Cables and Receptacles Perform Battery Connector Inspection Refer to 24 32 01 300 Hours gt A J2563001 Inspect Emergency Locator Transmitter ELT batteries if installed Perform functional test of ELT system if installed NOTE Perform T is functional test in accordance with FAR 91 207 12 Months ES IX F2565000 CVR FDR Underwater Locator Beacon Clean beacon switch perform functional test of beacon and perform test of ULB battery P Effective on aircraft equipped with CVR FDR System 2 Years 5 oe o o7 a EMPENNAGE
20. ee WL G3243040 Hydraulic brake hose assemblies located on the strut and in the wheel well area NOTE On Aircraft equipped with Teflon steel braided hoses these hoses are not life limited and shall be ais replaced as condition dictates 2 400 Hours or 5 Years f d a 4 S feel Y TAILCONE H2620035 Engine fire extinguisher cartridges Walter Kidde 841155 NOTE On Walter Kidde cartridges cartridge replacement time interval shall begin from the date of manufacture stamped on the cartridge 6 Years WH H2620036 Engine fire extinguisher cartridges Walter Kidde 841155 1 NOTE On Walter Kidde cartridges cartridge replacement time interval shall begin from the date of manufacture stamped on the cartridge 10 Years As E N2620040 Engine fire extinguisher cartridges uTD NOTE On HTL cartridges cartridge replacement time interval shall begin from the date of manufacture stamped on the cartridge r 6 Years 2 0 IZS NOSE R3500053 Oxygen cylinder steel DOT3HT 1850 NOTE Initial time count for replacement of this item shall commence from the manufactur ing date stamped on the item 2 Yes ss PA R3610056 Emergency Air Bottles P N 6600194 6 NOTE Initial time count for replacement of this item shall commence from the manufactur ing date stamped on the item 40 Years R3610060 Kidde Emergency Air Bottle NOTE Initial time count for replace ment of this item shall commence from the manu
21. facturing date stamped on the item 15 Years AV WING F2710009 Primary Aileron Control System Cables NOTE Replacement time applies to primary control systems only Roll pitch and yaw servo cables are replaced as required Refer to Chapter _ 27 for control cable damage limits 2 400 Hours Z 5 LEARJET 25B C D F Page 15 of 16 MAINTENANCE MANUAL 5 11 00 E2710011 Aileron Drive Yoke Bolt NAS1304 34H NAS1104 38D or NAS464P4A33 and AN320 4 Nut NOTE There may be some variation in grip lengths among these bolts Refer to the parts catalog for each case There is no difference in replacement lives 3 600 Hours 79 O GISO E2710015 Aileron Center Hinge Bolt AN4H12A or AN4H13A NOTE There may be some variation in grip lengths among these bolts Refer to the parts catalog for each case There is no difference in replacement lives 3 600 Hours i D So G2710016 Aileron Assembly 20 000 Hours c E E2710020 Aileron Clevis Bolt NAS464P4 NOTE There may be some variation in grip lengths among these bolts Refer to the parts catalog for each case There is no difference in replacement lives 20 000 Hours e E2710023 Aileron Pulley Assembly 2324513 20 000 Hours 2 E2710025 Aileron Clevis 2324512 or 2324517 MEN 20 000 Hours aL A E2710026 Aileron Yoke Assembly 2324511 20 000 Hours Hf E2710030 Aileron Bearing Support Assembly 2324510 20 000 Hours CX E2710031
22. se At every p ep Hot section inspection a i E 5 J7930004 Engine Oil Pressure Hose At every FUSELAGE E5210093 Upper Door Mechanism Handle Shaft Bolt 3 16 2311490 made from AN3 21 36 inch door Effective on Aircraft 25 061 and 25 070 thru 25 238 not modified per AMK 78 2 Replacement of Door Handle Mechanism for the 36 Inch Cabin Door NOTE There may be some variations in grip lengths among these bolts Refer to the parts catalog for each case There is no difference in i replacement lives 3 000 Hours df A LEARJET 25B C D F Page 13 of 16 MAINTENANCE MANUAL 5 11 00 LANDING GEAR G3210003 Hydraulic hose assemblies attached to the main and nose gear actuators main gear door actuators and the main and nose gear uplatch actuator NOTE On Aircraft equipped with Teflon steel braided hoses these hoses are not life limited and shall be replaced as condition dictates 1 500 hour replacement of hoses is only applicable to those hoses directly attached to respective actuator 1 500 Hours or 5 Years tee 2 E3211062 Main Gear Strut with Cylinder Assembly 2441011 and Actuator sod runway landings only Aircraft approved for unpaved runway operations 1 800 Landings Wy E3211064 Nose Gear Strut 2342100 and Actuator 2317100 Sod run ways only Aircraft approved for unpaved runway operations 5 000 Landings A E3211068 Main Gear Strut with Cylinder Assembly 2341101 Hard surfa
23. sess Repair Manual No RM 105 dated September 1979 or later applicable to P N 2380066 12 22 43 62 68 and 76 thru 78 600 Hours C3260001 Inspect replace or repair nose wheel steering servo P N 2380066 commutator NOTE In order to accomplish this requirement the performing facility must possess Repair Manual No RM 105 dated September 1979 or later applicable to P N 2380066 12 22 43 62 68 and 76 thru 78 1 800 Hours ua LEARJET 25B C D F Page 8 of 16 MAINTENANCE MANUAL 5 10 29 C3260002 Replace nose wheel steering servo P N 2380066 bearings NOTE in order to accomplish this requirement the performing facility must possess Repair Manual No RM 105 dated September 1979 or later applicable to P N 2380066 12 22 43 62 68 and 76 thru 78 KR 1 800 Hours A NOSE R3500022 Oxygen Cylinder steel DOT3HT 1850 Perform Hydrostatic Test NOTE Initial time count for testing of this item shall commence from the manufacturing date stamped on the item 3 Years A R3610004 Kidde Emergency Air Bottle Perform Visual Inspection NOTE Visual inspection of the emergency air bottle shall include both interior and exterior visual inspection Initial time count for inspection of this item shall commence from the manufacturing date stamped on the item 5l 1 Year JU R3610006 Emergency Air Bottles P N 6600194 6 Perform Visual Inspection and ICC Hydrostatic Test WARNING DO NOT METAL STAMP TAVCO A
24. t for evidence of corrosion _ on inner structure 24 Months g D M5600009 Cabin Windows Perform Optical Prism Inspection Refer to NDI Manual MY C5610020 Windshield Using prism techniques inspect the fastener area of the windshield for cracks normal to windshield surface particularly adjacent to fastener locations Also inspect for delaminations running parallel to Wow Lele windshield surface at fastener holes and trimmed edges of windshield rin Ds NOTE A copy of the Larascope Inspection Report shall be forwarded t WA L sn mm NDI 1 Part 4 56 10 01 One time only after window replacement i 600 Hours L 4 5 35 7 575 7 to Learjet Maintenance Engineering This inspection to be performed I one time only after windshield replacement 600 Hours 22 e 2 C 5 L LANDING GEAR R3244022 RH Gear Down Safety Switch and Anti Skid Electrical Contacts Perform Functional Test Refer to 32 30 02 Effective on Aircraft not modified per AAK 86 2 Installation of Parking Brake Annunciator 23 g 7059 300 Hours 1200 Hours Repeat 5 C3255001 Inspect Nose Wheel Steering Actuator P N 6608278 per J E T Instruction Manual TP 267 2 000 Hours C1 D A lo APES C3260000 Disassemble nose wheel steering servo P N 2380066 Clean and inspect for corrosion Relubricate assemble and replace motor and clutch brushes as required NOTE In order to accomplish this requirement the performing facility must pos
25. t for testing of this item shall ly commence from the manufacte date stamped on the item 3 Years fi V f _ LEARJET 25B C D F Page 7 of 16 MAINTENANCE MANUAL 5 10 29 ENGINE P7100025 Refer to GE Engine Maintenance Manual SEI 186 for inspection requirements NOTE Refer to GE Engine Maintenance Manual SEI 186 for these and any additional inspection requirements Engine inspections should be logged in appropriate engine log book Per manufacturer s instructions L7120010 Perform inspection Check of forward and aft engine mount isolators and associated parts NOTE This inspection check not required if performed within the last 200 hours During major engine inspection unscheduled engine change 4 E7120023 Engine yokes for cracks at lightening holes fasteners engine mount attachments and welds During major engine inspection unscheduled engine change FF P7830087 On aircraft equipped with Dee Howard thrust reversers refer to Dee Howard DHP G 25 1 Thrust Reverser Maintenance Manual for inspection servicing and lubrication requirements NOTE Refer to Dee Howard DHP G 25 1 Thrust Reverser Maintenance Manual for these and any other inspection servicing and lubrication requirements Per manufacturer s instructions FUSELAGE L5210025 Visually inspect exterior lower cabin structure fuselage door cut out framing members and hinge area for evidence of corrosion If corrosion is found remove door access panels and inspec
26. teries a Service battery sump jar if installed CDn cacl Nw b Perform battery capacity check 4 33 10 ET Per manufacturer s instructions O amp P1222005 Ni Cad Batteries Check or perform the following in accordance with battery manufacturer s service manual Refer to 12 22 00 and 24 32 01 a Liquid level check b Perform complete discharge recharge procedure c Functional check of battery temperature system thermistors d Function check battery 140 F and 160 F warning light temp switches NOTE Interval is the normal allowable period between maintenance activities if no service interval is specifically recommended by the battery manufacturer Because of varied flight profiles certain servicing and maintenance activities may require a more frequent interval or may allow an extended interval depending on environmental and operational requirements and should be adjusted by individual operators Operators should refer to their battery manufacturer s service manual for detailed A maintenance instructions 3 Months JU D1223000 Inspect Ni Cad emergency power supply battery 100 hours or 3 months or after 15 days of non use i D Z D1223001 Perform Ni Cad emergency power supply battery discharge recharge 12Months 1 7 1 4 F1223010 Perform operational check of PS 835 or PS 855 lead acid emergency power supply battery NOTE Aircraft equipped with remote test switch may perform operational che
27. ve the same service life as the original part unless otherwise noted E Replacement part dash numbers are deleted to avoid confusion when ordering parts 2 Replacement items IRN SYSTEM AND COMPONENT INTERVAL G2820002 All Fuel Hose Assemblies excluding all hoses in engine nacelle area in Aircraft Pressure NOTE Excludes vent and expansion line hoses __ 12 Years 6 000 Landings Tef sn 2 Yc7 ok A G2900001 Hydraulic Hose Assemblies excluding hoses for the landing gear and those hose assemblies in the engine nacelle area NOTE On Aircraft equipped with Teflon steel braided hoses these hoses are not life limited and shall be replaced as condition dictates gt 12 Years 6 000 Landings rad Flo S jes d y CENTER SECTION E5322000 Keelbeam Attachment Bolts NOTE On aircraft that have already accomplished a 12 Year inspection replace bolts at next 1 200 Hour Inspection or 12 000 flight hours whichever occurs first 12 Years 6 000 Landings 5 9 09 2 9 4 L2431051 Right Essential Bus 40 Amp Circuit Breaker if installed 12 Years 6 000 Landings 2 5 2C Z A L2431053 Left Essential Bus 40 Amp Circuit Breaker if installed 12 Years 6 000 Landings Z y OL SLAC G2431055 MAIN BUS TIE 50 Amp Circuit Breaker yo 12 Years 6 000 Landings Z OL y F256600 CVR FDR ULB Battery Replace on or Before battery replacement date 20 gj EMPENNAGE F2720014 Primary Rudder Control System Cables

1 - Controller.com

Contents

Download Pdf Manuals

Related Search

Related Contents