# Rolls-Royce 501-D22 - Type: Engine model (FAA registry) - Registry code: 54158 - Manufacturer (registry): ROLLS-ROYC - Model: 501-D22 - Engine type: Turbo-prop - Power: 4,050 hp - Data sheet: [TCDS E-282](https://openairdocs.org/tcds/E-282) (OpenAirDocs) - Holder: Rolls-Royce Corporation - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/rolls-royce-501-d22 Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2006-25-12](https://openairdocs.org/ad/2006-25-12): Removal from service of certain turbine rotor components · Rolls-Royce 501-D13, 501-D13A, 501-D13D and 6 more. Effective Jan 23, 2007 - [AD 69-21-03](https://openairdocs.org/ad/69-21-03): First Stage Compressor Wheels · Rolls-Royce 501-D13, 501-D13A, 501-D13D and 6 more. Effective Oct 21, 1969 Historical (superseded or no longer in force): - [AD 2003-07-02](https://openairdocs.org/ad/2003-07-02) (historical): Turbine rotor components · 501-D13, 501-D13A, 501-D13D and 6 more. Effective May 7, 2003 ## Registered aircraft None registered with this engine model now. ## NTSB investigations None matched to aircraft with this engine model. ## FAA accident and incident reports None matched to aircraft with this engine model. ## Service difficulty reports (43) As reported by operators and repair stations, by the model named in the report. - [SDR VGCA20250513001](https://openairdocs.org/sdr/VGCA20250513001), May 13, 2025: TACH GENERATOR. STRIPPED. RIGHT ENGINE RPM SPOOLED DOWN IN FLIGHT. ENGINE WAS SHUTDOWN. SUBSEQUENT INSPECTION FOUND THAT TACH GENERATOR DRIVE SHAFT WAS SPRIPPED - [SDR VGCA20241209001](https://openairdocs.org/sdr/VGCA20241209001), Dec 9, 2024: CHECK VALVE. BLOCKED. ON LANDING SMOKE FILLED CABIN AND COCKPIT. DURING SUBSEQUENT INSPECTION FOUND THAT ENGINE DRIVEN COMPRESSOR (CABIN) HAD OVERHEATED AND DUMPED OIL INTO CABIN AIR - [SDR VGCA20240207001](https://openairdocs.org/sdr/VGCA20240207001), Feb 7, 2024: REDUCTION GB. PRESSURE LOSS. REDUCTION GEARBOX HAD INTERNAL FAILURE THAT CAUSED ENTIRE QUANITY OF ENGINE OIL TO FILL REDUCTION GEARBOX. - [SDR VGCA20220330001](https://openairdocs.org/sdr/VGCA20220330001), Mar 30, 2022: NONE. BYPASSING. ENGINE COMPRESSOR SURGED AND THEN FLAMED OUT AND AUTOFEATHERED AT THE END OF TAKE OFF PHASE. - [SDR VGCA20211023001](https://openairdocs.org/sdr/VGCA20211023001), Oct 23, 2021: NOT REPORTED. NOT REPORTED. ENGINE FLAMEOUT / LOSS OF POWER DURING CRUISE. ACCESSOPRY DRIVE HOUSING GEARBOX IS NOT ROATATING - [SDR VGCA20210510001](https://openairdocs.org/sdr/VGCA20210510001), Apr 28, 2021: SPAR. CORRODED. RIGHT WING, REAR SPAR, UPPER RAIL CORRODED AT WING STATION 23. PERFORMED BLEND OUT IN THIS LOCATION PER ENGINEERING REPAIR. - [SDR VGCA20210510002](https://openairdocs.org/sdr/VGCA20210510002), Apr 28, 2021: SPAR. CORRODED. RIGHT WING, REAR SPAR, UPPER RAIL CORRODED BETWEEN WING STATION 21 AND 22. SPLICED IN NEW SPAR RAIL SEGMENT PER ENGINEERING REPAIR. - [SDR VGCA20210510003](https://openairdocs.org/sdr/VGCA20210510003), Apr 28, 2021: SPAR. CORRODED. RIGHT WING, REAR SPAR, LOWER RAIL CORRODED BETWEEN WING STATIONS 21 AND 23. PERFORMED BLEND OUT PER ENGINEERING REPAIR - [SDR VGCA20210311001](https://openairdocs.org/sdr/VGCA20210311001), Mar 11, 2021: FIRE LOOP. SHORTED. RIGHT ENGINE ZONE 1 FIRE WARNING IN FLIGHT, SHUT DOWN ENGINE, RETURNED TO AIRPORT. FOUND 2 SECTIONS OF FIRE DETECTOR LOOP BAD. - [SDR VGCA202006296001](https://openairdocs.org/sdr/VGCA202006296001), Jun 26, 2020: OIL SYSTEM. LEAKING. LOSS OF ALL OIL ON NR 1 ENGINE. SHUT DOWN ENGINE AND DECLARED AN EMERGENCY. - [SDR CA180103009](https://openairdocs.org/sdr/CA180103009), Dec 29, 2017: FIRE DETECTOR. ABNORMAL. (CAN) IN FLIGHT, THE AIRCRAFT`S NR 1 ENGINE ZONE 2 FIRE WARNING ACTIVATED. THE FLIGHT CREW ACCOMPLISHED THE ENGINE FIRE WARNING SHUTDOWN PROCEDURE AND CHECKLIST - [SDR VGCA20160311001](https://openairdocs.org/sdr/VGCA20160311001), Mar 11, 2016: COMPRESSOR. STALLED. NUMBER 1 COMPRESSOR STALLED. PRECAUTIONARY SHUTDOWN OF THE NR 1 ENG & RETURNED. - [SDR LR7A2015091700608](https://openairdocs.org/sdr/LR7A2015091700608), Sep 17, 2015: HOUSING. FAILED. DURING CRUISE, NR 4 ENGINE FLAMED OUT. SHUTDOWN IAW QRH PROCEDURES. R & R VALVE HOUSING ASSY IAW HN61135. - [SDR CA150506018](https://openairdocs.org/sdr/CA150506018), May 5, 2015: DRIVE GEAR. MISINSTALLED. (CAN) LEFT MAIN PRESS & SCAVENGE OIL PUMP WAS INSTALLED DURING WINTER MX. AT SPRING RUN UP IT WAS NOTED THAT THE LT ENG MAIN OIL PRESS WAS NOT WITHIN SPECIFIED - [SDR CA130828014](https://openairdocs.org/sdr/CA130828014), Aug 19, 2013: TIRE. OUT OF BALANCE. (CAN) NOSE WHEEL TIRES ON 2 SEPARATE ACFT, REPLACED DUE TO NOSE WHEEL SHIMMY ON EACH ACFT DURING TAKEOFF. 1 TIRE/RIM WAS REPLACED AUGUST 16,2013 AND THE OTHER A - [SDR CA130718004](https://openairdocs.org/sdr/CA130718004), Jul 17, 2013: STRUT. BROKEN. (CAN) AFTER TAKEOFF WITH A POSITIVE RATE OF CLIMB THE GEAR HANDLE WAS SELECTED UP. A LOUD BANG WAS HEARD AND THE "GEAR UNLOCKED" LIGHT REMAINED ILLUMINATED. THE - [SDR VGCA20130401001](https://openairdocs.org/sdr/VGCA20130401001), Apr 1, 2013: PROPELLER. MALFUNCTIONED. NR 2 PROPELLER AUTOFEATHER AFTER TAKEOFF. - [SDR CA130128022](https://openairdocs.org/sdr/CA130128022), Jan 28, 2013: ROD END. WORN. (CAN) IN THE SUMMER OF 2011,PILOTS REPORTED THAT AT HIGH POWER SETTINGS IN CRUISE A HIGH FREQUENCY VIBRATION WAS FELT IN THE OTBD RUDDER PEDALS AND THE SEAT FRA - [SDR VGCA201208240001](https://openairdocs.org/sdr/VGCA201208240001), Aug 24, 2012: BEAM. CRACKED. LEFT NOSE LANDING GEAR BEAM UPPER CHORD CRACKED. - [SDR CA120806002](https://openairdocs.org/sdr/CA120806002), Jul 28, 2012: MOTOR. FAILED. (CAN) DURING OPERATIONS IN A VERY HOT, 35C+, ENVIRONMENT, THE FAN UNIT OF THE ZEE SYS INC. AIR CONDITIONING SYS WOULD OVERTEMP AND BURN OUT, CREATING A BURNING - [SDR CA120610001](https://openairdocs.org/sdr/CA120610001), Jun 4, 2012: SOLENOID. FAILED. (CAN) ON APPROACH, CREW EXPERIENCED A HAZE IN THE COCKPIT AND NOTICED THE, CABIN COMPRESSOR OIL LOW, LIGHT ILLUMINATED. CREW DISCONNECTED THE EDC AND LANDED WIT - [SDR CA120823012](https://openairdocs.org/sdr/CA120823012), Apr 2, 2012: ANGLE. CRACKED. (CAN) DURING ANNUAL 375 HR INSPECTION, A CRACK WAS DISCOVERED VISUALLY IN THE NLG WHEEL WELL. MORE SPECIFICALLY, THE CRACK WAS LOCATED IN THE LT SIDE OF THE NLG - [SDR CA120127013](https://openairdocs.org/sdr/CA120127013), Jan 25, 2012: FITTING. CRACKED. (CAN) DURING A 375 HR ANNUAL INSPECTION ON THE EXTERIOR OF THE EMPENNAGE, ELEVATOR AND HINGE ATTACHING PINS, BEARINGS AND BUSHINGS, THE SECOND FROM THE OTBD LT - [SDR CA111025011](https://openairdocs.org/sdr/CA111025011), Oct 24, 2011: ATTACH BRACKET. CRACKED. (CAN) DURING ANNUAL INSPECTION, FWD ECP BOX ATTACHMENT BRACKET, FOUND CRACKED IN UPPER AFT CORNER OF STRUCTURE ATTACH POINT. AFT ECP BOX PN 35E05-6D TOP ATTACH - [SDR CA110701001](https://openairdocs.org/sdr/CA110701001), Jun 16, 2011: RELAY. WRONG PART. AFTER STARTING THE NR2 ENGINE, ELECTRICAL SMOKE FUMES DETECTED IN THE COCKPIT. SMOKE CONTINUED TO BUILD. ELECTRICAL FIRE SUSPECTED. THE CREW SHUTDOWN ACFT POWER - [SDR CA110413016](https://openairdocs.org/sdr/CA110413016), Apr 9, 2011: LINE. LEAKING. (CAN) ACFT DEPARTED AT ABOUT 1530Z. IN FLIGHT, THE CREW HAD LOST HYD QTY, DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE. ACFT WAS TOWED TO RAMP AND MAINTENANC - [SDR CA101018014](https://openairdocs.org/sdr/CA101018014), Oct 15, 2010: HINGE FITTING. DAMAGED. DURING THE ANNUAL 375 HR INSP, ELEVATOR/EMPENNAGE INSP PANELS WERE REMOVED. RT ELEVATOR OTBD STABILIZER TO ELEVATOR HINGE FITTING WAS FOUND GROOVED ON TOP RADIU - [SDR CA100521005](https://openairdocs.org/sdr/CA100521005), May 17, 2010: CONTROL BOX. FAILED. NR 1 ENGINE AC GENERATOR CAME OFF LINE DURING CRUISE, GENERATOR RESET AND STILL WILL NOT COME ON LINE, CONTROL BOXES SWAPPED AND FAULT TRANSFERED TO OTHER SIDE - [SDR CA090622015](https://openairdocs.org/sdr/CA090622015), Jun 20, 2009: GENERATOR. INOPERATIVE. (CAN) ON APPROACH, PILOT NOTICED NR 1 AC GENERATOR INOP LIGHT ON AND VOLTMETER INDICATED 0 VOLTS. CIRCUIT METERED BACK THROUGH VOLTAGE REGULATOR AND FOUND OPEN - [SDR CA090617008](https://openairdocs.org/sdr/CA090617008), Jun 14, 2009: SELECTOR VALVE. INOPERATIVE. (CAN) PILOT UNABLE TO RETRACT FLAPS THROUGH NORMAL ELECTRIC FLAP CONTROL SWITCH. FLAPS RETRACTED USING MANUAL EMERGENCY FLAP SELECTOR. TROUBLESHOOTING DETERMINE - [SDR CA070824007](https://openairdocs.org/sdr/CA070824007), Jul 25, 2007: DOOR. INOPERATIVE. (CAN) AIRCRAFT WAS DISPATCHED FOR FIRE ACTION. AFTER DEPARTURE, THE RT OIL TEMPERATURE GAUGE WAS OBSERVED TO BE AT THE BOTTOM OF THE RED ARC, APPROXIMATELY 100 - [SDR CA070727009](https://openairdocs.org/sdr/CA070727009), Jul 23, 2007: LEVER. DISTORTED. (CAN) UPON SELECTION OF (GEAR DOWN), THE LOCKING ARM OF THE LANDING GEAR SELECTOR HANDLE STUCK IN THE EXTENDED POSITION, PREVENTING ASSOCIATED FUNCTION OF DEPRE - [SDR CA070308004](https://openairdocs.org/sdr/CA070308004), Mar 6, 2007: CONTROL SWITCH. SHORTED. (CAN) WHILE CARRYING OUT FLIGHT TRAINING THE LT GENERATOR WAS TURNED OFF. WHEN SELECTED BACK ON, IT WAS NOTED THAT SMOKE WAS COMING FROM THE VOLTAGE REGULATOR. - [SDR CA060617001](https://openairdocs.org/sdr/CA060617001), Jun 9, 2006: STEERING SYS. MALFUNCTIONED. AFTER T/O, DURING L/G RETRACTION, NOSE WHEELS ENTERED W/W IN A RT TURN ATTITUDE, EVIDENT FROM WEAR MARKS ON TIRES AND RUBBER ON INTERIOR WALLS OF W/W. WHEN A/C - [SDR CA060426003](https://openairdocs.org/sdr/CA060426003), Apr 24, 2006: ENGINE. FAILED. (CAN) DURING CRUISE, THE CREW NOTICED THE TIT SPIKED TO 1100 DEGRESS F. THE HORSEPOWER DECREASED AND THE ZONE 1 FIRE BELL SOUNDED. THE E HANDLE AWAS PULLED AND - [SDR 2005FA0000344](https://openairdocs.org/sdr/2005FA0000344), Feb 22, 2005: WINDOW. BLEW OUT. DURING CRUISE FLIGHT AT FL230, THE FO SIDE WINDOW BLEW OUT; AT WHICH TIME, AN EMERGENCY DESCENT WAS EXECUTED TO AN UNEVENT LANDING. (K) - [SDR CA050329014](https://openairdocs.org/sdr/CA050329014), Feb 22, 2005: WINDOW. FAILED. (CAN) THE OPERATOR HAS FILED AN INCIDENT REPORT WITH THE FAA. WINDOWPANE FAILURE AT CRUISE ALTITUDE OF 21,000 FT, WHICH CAUSED FOD DAMAGE TO THE RT ENGINE. THE - [SDR CA040702005](https://openairdocs.org/sdr/CA040702005), Jun 22, 2004: SWITCH. FAULTY. (CAN) DURING CRUISE THE LT STARTER OVERSPEED LIGHT ILLUMINATED. THE ENGINE WAS SHUT DOWN AND THE PROPELLER WAS FEATHERED AS A PRECAUTION. THE AIRCRAFT RETURNED - [SDR CA030115007](https://openairdocs.org/sdr/CA030115007), Dec 23, 2002: FITTING. CRACKED. TWO HOSE ASSEMBLIES (390A20D4.8 AND 390A20D12.5) FROM A FUEL SUPPLY "Y" MANIFOLD WAS REMOVED AND ROUTED TO OUR INTERNAL OVERHAUL SHOP FOR REPLACEMENT OF THE HOS - [SDR CA010727017](https://openairdocs.org/sdr/CA010727017), Jul 20, 2001: GEARBOX. LEAKING. (CAN) DURING CLIMB THROUGH FL170 AFTER DEPARTURE NOTICED NR 2 GEAR BOX OIL PRESSURE FLICKERING. OIL PRESSURE WAS STILL IN THE GREEN RANGE AND THE POWER SECTION - [SDR 20010220CW001](https://openairdocs.org/sdr/20010220CW001), Jan 7, 2001: PROPELLER. BLOWN. AIRCRAFT WAS COLD SOAKED, OUTSIDE TEMPERATURE BEFORE DEPARTURE WAS 15 DEGREES. SUBMITTER FEELS THIS WAS A CONTRIBUTING FACTOR TO THIS SEAL BEING DEFECTIVE. COMP - [SDR CA981125001](https://openairdocs.org/sdr/CA981125001), Apr 9, 1998: GEARBOX. LEAKING. (CAN) DURING CLIMB THROUGH FL 170, NR 2 GEARBOX OIL PRESSURE LIGHT FLICKERING. OIL PRESSURE WAS STILL IN THE GREEN RANGE AND THE POWER SECTION OIL PRESSURE LIGH - [SDR CA990310067](https://openairdocs.org/sdr/CA990310067), Apr 9, 1998: GEARBOX. LEAKING. (CAN) DURING CLIMB THROUGH FL 170, NR 2 ENGINE GEARBOX LIGHT FLICKERED. OIL PRESSURE WAS STILL IN THE GREEN AND THE POWER SECTION OIL PRESSURE WAS NORMAL. OIL Q ## PMA parts (OpenAirDocs) (over 1,000, first 50) Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [5232361P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176497882920260407171315.0001): Spray Tip-NozzleOuter. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 5232361 · Mar 11, 2026 - [5231719P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165490876420260407171315.0001): Spray Tip -NozzleInner. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 5231719 · Mar 11, 2026 - [5232367P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156087375720260407171315.0001): Spacer -NozzleSpray Tip. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 5232367 · Mar 11, 2026 - [5231692P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154315259120260407171316.0001): Spring -NozzleDirector. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 5231692 · Mar 11, 2026 - [5231689P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140048117120260407171316.0001): Director -NozzleSpray Tip. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 5231689 · Mar 11, 2026 - [5232362P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131402464820260407171315.0001): Spray TipAssembly -Nozzle. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 5232362 · Mar 11, 2026 - [211-326P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125354605420260305135806.0001): Filter Element Assembly. Donaldson Company Inc · PMA PQ2432CE · Replaces 6873547, 6871805 · Mar 3, 2026 - [23071468P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154696035220251205185338.0001): Support,Turbine –Front Bearing. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 23071468 · Aug 5, 2025 - [6783872P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170886975520250404211601.0001): Shaft,Compressorextension. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 6783872 · Mar 26, 2025 - [6827848P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161394333120250404211602.0001): Gear Assy,CompressorExt Shaft &Side Gear. Pacific Sky Supply Inc · PMA PQ1255NM · Replaces 6827848 · Mar 26, 2025 - [6782685TT+.015](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198849205620250102180403.0001): Plug, Oil Seal 0.750 Dia X 0.375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6782685+.015 · Jul 2, 2024 - [6782685TT+.005](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198406910020250102180402.0001): Plug, Oil Seal 0.750 Dia X 0.375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6782685+.005 · Jul 2, 2024 - [6829392TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197912735420250102180347.0001): Gear, Spur, Hydraulic Pump Idler Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6829392 · Jul 2, 2024 - [6824041TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197900864320250102180355.0001): Gear, Spur, Tachometer Drive Takeoff. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6824041 · Jul 2, 2024 - [6887148TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192560985520250102180354.0001): Flange, Starter Shaft Bearing. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6887148 · Jul 2, 2024 - [23056999TT-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191334320720250102180343.0001): Roller Sets, Spherical Planet Bearing. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23056999-1 · Jul 2, 2024 - [23053857TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191250019320250102180349.0001): Seal, Labyrinth, Rotating, Compressor Rear Primary. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23053857 · Jul 2, 2024 - [6829393TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190929031620250102180353.0001): Gear, Spur, Alternator Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6829393 · Jul 2, 2024 - [6876478TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186592623820250102180351.0001): Shaft gear, Spur-Pump Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6876478 · Jul 2, 2024 - [6824043TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186387820320250102180342.0001): Gear, Spur, Tachometer & Oil Pump Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6824043 · Jul 2, 2024 - [23056962TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185636051920250102180357.0001): Eyebolt, Reduction Gear. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23056962 · Jul 2, 2024 - [6829896TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182232096120250102180350.0001): Pin, Reduction Gear, Eyebolt. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6829896 · Jul 2, 2024 - [6846747TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181477636120250102180347.0001): Shaft Assembly, Drive Tachometer. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6846747 · Jul 2, 2024 - [23056999TT-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181362804820250102180344.0001): Roller Sets, Spherical Planet. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23056999-6 · Jul 2, 2024 - [6845748TT-43](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181267883820250102180351.0001): Gear, Spur-Starter. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6845748-43 · Jul 2, 2024 - [6782685TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180695100120250102180402.0001): Plug, Oil Seal 0.750 Dia X 0.375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6782685 · Jul 2, 2024 - [23056999TT-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179894934920250102180344.0001): Roller Sets, Spherical Planet. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23056999-5 · Jul 2, 2024 - [23003504TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179432922220250102180357.0001): Cuplock, Retention- Prop Shaft Thrust Nut Lock. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23003504 · Jul 2, 2024 - [6829396TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178937992820250102180341.0001): Gear, Spur-Main Accessory Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6829396 · Jul 2, 2024 - [23056999TT-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178137725220250102180344.0001): Roller Sets, Spherical Planet. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23056999-4 · Jul 2, 2024 - [6787342TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169804341620250102180347.0001): Shaft Gear, .250 Square Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6787342 · Jul 2, 2024 - [6845945TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167884631120250102180348.0001): Bolt, Tie, Compressor. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6845945 · Jul 2, 2024 - [6794722TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162311378320250102180349.0001): Seal, Labyrinth, Rotating, Compressor Rear Primary. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6794722 · Jul 2, 2024 - [6824044TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161475209220250102180340.0001): Gear, Spur, Pump Drive Idler. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6824044 · Jul 2, 2024 - [6792040TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156471217520250102180354.0001): Cone, Inner Prop Brake. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6792040 · Jul 2, 2024 - [6782685TT+.010](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155625825720250102180402.0001): Plug, Oil Seal 0.750 Dia X 0.375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6782685+.010 · Jul 2, 2024 - [6829398TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153770119120250102180359.0001): Gear, Spur, Scavenge Pump Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6829398 · Jul 2, 2024 - [6788225TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146424434220250102180402.0001): Gear, Scavenge Pump Drive Pinion. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6788225 · Jul 2, 2024 - [23056999TT-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142633724520250102180344.0001): Roller Sets, Spherical Planet. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23056999-3 · Jul 2, 2024 - [6738444TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141092233620250102180401.0001): Shaft, Accessory Idler Gear. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6738444 · Jul 2, 2024 - [6782685TT+.020](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140723593320250102180403.0001): Plug, Oil Seal 0.750 Dia X 0.375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6782685+.020 · Jul 2, 2024 - [6829670TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135080996620250102180357.0001): Member, Safety Coupling-Outer. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6829670 · Jul 2, 2024 - [6842119TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132726204520250102180348.0001): Member, Safety Coupling-Intermediate. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6842119 · Jul 2, 2024 - [6899778TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132096137820250102180346.0001): Ferrule, Crossover. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6899778 · Jul 2, 2024 - [6824214TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131692517420250102180358.0001): Gear, Spur, Tachometer Drive Idler. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6824214 · Jul 2, 2024 - [23055550TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131197886320250102180343.0001): Gear and Bearing Assembly, Planet. Turbo Technologies LLC · PMA PQ2318NM · Replaces 23055550 · Jul 2, 2024 - [6787344TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129001373420250102180351.0001): Shaftgear, Accessory Drive Side. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6787344 · Jul 2, 2024 - [19144TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127898217820250102180352.0001): Plug, Oil Seal .750 Dia X .375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 19144 · Jul 2, 2024 - [6782790TT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127765451720250102180401.0001): Shaft, Assembly, Slide Accessory Drive. Turbo Technologies LLC · PMA PQ2318NM · Replaces 6782790 · Jul 2, 2024 - [19144TT+.010](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126082651420250102180352.0001): Plug, Oil Seal .750 Dia X .375 Long. Turbo Technologies LLC · PMA PQ2318NM · Replaces 19144 +.010 · Jul 2, 2024 All of them: https://openairdocs.org/engine/rolls-royce-501-d22/pma.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.