# Allison 501-D22A

- Type: Engine model (FAA registry)
- Registry code: 03006
- Manufacturer (registry): ALLISON
- Model: 501-D22A
- Engine type: Turbo-prop
- Power: 4,680 hp
- Data sheet: [TCDS E-282](https://openairdocs.org/tcds/E-282) (OpenAirDocs)
- Holder: Rolls-Royce Corporation
- Installed in: 12 registered aircraft
- Page: https://openairdocs.org/engine/allison-501-d22a

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 2005-22-03](https://openairdocs.org/ad/2005-22-03): 1st stage, 2nd stage, 3rd stage, and 4th stage turbine wheels · Rolls-Royce 501-D22A, 501-D22C and 501-D22G. Effective Nov 29, 2005
- [AD 75-07-06](https://openairdocs.org/ad/75-07-06): Second Stage Turbine Blades · Rolls-Royce 501-D22A. Effective Apr 7, 1975
- [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Historical (superseded or no longer in force):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 (12)

- [N382HT](https://openairdocs.org/aircraft/N382HT): [Cardinal Services Corp](https://openairdocs.org/faa-owner/CARDINAL%20SERVICES%20CORP), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), S/N 5032
- [N401LC](https://openairdocs.org/aircraft/N401LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1975, S/N 4606
- [N402LC](https://openairdocs.org/aircraft/N402LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1976, S/N 4698
- [N403LC](https://openairdocs.org/aircraft/N403LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1975, S/N 4590
- [N404LC](https://openairdocs.org/aircraft/N404LC): [Airplane Sales International Corp](https://openairdocs.org/faa-owner/AIRPLANE%20SALES%20INTERNATIONAL%20CORP), [Sherman Oaks, CA](https://openairdocs.org/faa-place/CA/Sherman%20Oaks), built 1977, S/N 4763
- [N405LC](https://openairdocs.org/aircraft/N405LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1985, S/N 5025
- [N406LC](https://openairdocs.org/aircraft/N406LC): [Lynden Aircargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIRCARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1976, S/N 4676
- [N407LC](https://openairdocs.org/aircraft/N407LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1991, S/N 5225
- [N408LC](https://openairdocs.org/aircraft/N408LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1975, S/N 4600
- [N409LC](https://openairdocs.org/aircraft/N409LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1976, S/N 4695
- [N411LC](https://openairdocs.org/aircraft/N411LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1978, S/N 4796
- [N415LC](https://openairdocs.org/aircraft/N415LC): [Lynden Air Cargo LLC](https://openairdocs.org/faa-owner/LYNDEN%20AIR%20CARGO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1976, S/N 4684

## NTSB investigations (5)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA25LA061](https://openairdocs.org/ntsb/DCA25LA061), Dec 18, 2024: Lockheed 382G-44K-30 (N403LC), St. Mary's, AK, substantial damage. Probable cause: The fatigue failure of the forward pressure bulkhead canted web that originated from stress corrosion cracking areas. Contributing to the failure were inspection procedures and intervals inadequate…
- [NTSB DCA16LA096](https://openairdocs.org/ntsb/DCA16LA096), Feb 12, 2016: Lockheed 382G (N401LC), Iliamna, AK, substantial damage. Probable cause: The fatigue failure of the forward pressure bulkhead canted web that originated from stress corrosion cracking areas. Contributing to the failure were inspection procedures and intervals inadequate…
- [NTSB ANC07LA067](https://openairdocs.org/ntsb/ANC07LA067), Jul 19, 2007: Lockheed 382G-44K-30 (N401LC), McGrath, AK, substantial damage. Probable cause: The pilot's excessive rotation of the airplane during takeoff, which resulted in dragging the tail on the runway and substantial damage.
- [NTSB ANC01LA081](https://openairdocs.org/ntsb/ANC01LA081), Jul 2, 2001: Lockheed L-382G (N401LC), Lake Minchumina, AK, substantial damage. Probable cause: The flight crew's improper recovery from a bounced landing. Factors associated with the accident were the selection of an unsuitable landing area, and a rough/uneven landing surface.
- [NTSB ANC98LA085](https://openairdocs.org/ntsb/ANC98LA085), Jun 26, 1998: Lockheed L-382G (N402LC), Huslia, AK, substantial damage. Probable cause: The pilot's failure to maintain proper alignment of the airplane during the landing roll.

## FAA accident and incident reports (9)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20250924018919I](https://openairdocs.org/incident/20250924018919I), Sep 24, 2025: Lockheed 382G-44K-30 (N403LC), Sachs Harbour C, Minor damage. On September 24, 2025, at about 0947 mountain standard time, a Lockheed L-100-30 (model 382G-44K-30) hercules, operating under title 14 code of federal…
- [Accident 20241218020479A](https://openairdocs.org/incident/20241218020479A), Dec 18, 2024: Lockheed 382G-44K-30 (N403LC), Anchorage, AK, Substantial damage. After departing st mary's climbing through FL 220 about 20 min after takeoff, experienced a loud noise and rapid depressurization. Pilot and crew followed…
- [Incident 20240920014469I](https://openairdocs.org/incident/20240920014469I), Sep 20, 2024: Lockheed L-382G-44K-30 (N409LC), Anchorage, AK, No damage. On 09/20/2024 at 2354Z (1554L), a [privacy data omitted](lyc) flight departed Anchorage ted stevens international airport (panc), for mcgrath airport(pamc) on…
- [Incident 20240723014459I](https://openairdocs.org/incident/20240723014459I), Jul 23, 2024: Lockheed 382G-44K-30 (N406LC), St. Marys, AK, No damage. On 07/23/2024 at 2253Z (1453L), a [privacy data omitted] (lyc) flight departed anchorage ted stevens international airport (panc), for st. Mary'S - Pitkas…
- [Incident 20181115017249I](https://openairdocs.org/incident/20181115017249I), Nov 15, 2018: Lockheed 382G-44K-30 (N402LC), Anc, AK, No damage. While in cruise phase of flight, the number one engine was shut down due to engine RPM out of limits. About fifteen minutes later the number two engine was…
- [Accident 20160212002039A](https://openairdocs.org/incident/20160212002039A), Feb 12, 2016: Lockheed 382G-44K-30 (N401LC), Iliamna, AK, Substantial damage. Aircraft departed bethel AK, en route to elmendorf afb AK, pilot declared emergency after a rapid decompression indication. Pilot requested and was cleared to…
- [Accident 20070718014889A](https://openairdocs.org/incident/20070718014889A), Jul 18, 2007: Lkheed 382G (N401LC), Mcgrath, AK, Substantial damage. (-23) Aircraft struck tail during takeoff rotation from a remote Alaska mining strip. The first indication of a problem occurred during climbout when the…
- [Accident 20010702017079A](https://openairdocs.org/incident/20010702017079A), Jul 2, 2001: Lkheed 382G (N401LC), Minchumina, AK, No damage. (-23) Captain was landing on a 4,200 feet long, 90 feet wide, gravel runway. The runway had a number of frost-heaves that had developed during the past winter.…
- [Accident 19980626016229A](https://openairdocs.org/incident/19980626016229A), Jun 26, 1998: Lkheed 382G (N402LC), Huslia, AK, Substantial damage. Wing hit a tree while landing at hog river strip. (.4 NTSB factual entered)a transport category cargo airplane was landing on a remote, private airport. The…

## Service difficulty reports (231, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR LR7A2024031203363](https://openairdocs.org/sdr/LR7A2024031203363), Mar 12, 2024: ENGINE. FLAMED OUT. DURING SCHEDULED FLIGHT #3 ENGINE FLAMED OUT. SUBSEQUENT INSPECTION FOUND FOD DAMAGE. / REPLACED #3 ENGINE. IAW HN71136. LOG PAGE 52379
- [SDR 2021FA0000401](https://openairdocs.org/sdr/2021FA0000401), Dec 16, 2021: FUEL NOZZLE. NO TEST. ON MONDAY AFTERNOON, DEC. 13TH DURING THE START OF AN ENGINE FUNCTIONAL TEST, THE ENGINE FAILED TO LIGHT OFF. DURING TROUBLESHOOTING IT WAS FOUND THAT THE FUEL 
- [SDR LR7A2020120802646](https://openairdocs.org/sdr/LR7A2020120802646), Dec 8, 2020: HOUSING. LEAKING. DURING SCHEDULED FLIGHT NR 1 ENGINE LOW PROP OIL LIGHT ILLUMINATED. ENGINE SHUT DOWN. EMERGENCY DECLARED. RESEALED NR 1 PROP PUMP HOUSING.
- [SDR LR7A2019120302215](https://openairdocs.org/sdr/LR7A2019120302215), Nov 30, 2019: HOUSING. FAILED. DURING SCHEDULED FLIGHT WHILE IN CLIMB #1 ENGINE FLAMEOUT AT 1859. / REMOVED AND REPLACED #1 PROP VALVE HOUSING REF HN 61135 - LEAK AND OPS CHECK GOOD REF HN710
- [SDR LR7A2018082421420](https://openairdocs.org/sdr/LR7A2018082421420), Aug 22, 2018: LINE. LOOSE. DURING SCHEDULED FLIGHT, PULLED THROTTLES BACK TO NEAR ZERO, ZERO TORQUE, NR 4 ENGINE FLAMED OUT. TIGHTENED LINES AT SPEED SENSE VALVE AND FILTER. OPS CHECKED G
- [SDR LR7A20180515379](https://openairdocs.org/sdr/LR7A20180515379), May 11, 2018: ENGINE. OVERSPEED. DURING SCHEDULED FLIGHT, THE NR 3 ENGINE OVERSPEED OF APPROXIMATELY 106% WHEN BLEEDS WERE TURNED ON AT 1000 FEET. ENGINE WAS SHUTDOWN IAW ESP. INSPECTED AND CLE
- [SDR LR7A2015090900607](https://openairdocs.org/sdr/LR7A2015090900607), Sep 9, 2015: HOUSING. DAMAGED. DURING DESCENT, NR 4 ENGINE FLAMED OUT. SHUTDOWN IAW QRH PROCEDURES. R & R VALVE HOUSING ASSY.
- [SDR LR7A2014121600505](https://openairdocs.org/sdr/LR7A2014121600505), Dec 14, 2014: PLENUM. CRACKED. DURING SCHEDULED B-3 CHECK, UNDER JOB CARD HB5701, FOUND NR4 ENGINE'S LOWER AFT NACELLE PLENUM HAD CRACKED ON THE INBD SIDE; FS536, PPWL0 TO PPWL-6, PPBL8.4L TO
- [SDR CA150118001](https://openairdocs.org/sdr/CA150118001), Dec 11, 2014: LONGERON. CRACKED. (CAN) DURRING ROUTINE B CHECK INSPECTION , CRACK WAS FOUND ON SLOPING LONGERON AT BS 869 LT SIDE. LONGERON WAS REPLACED AIRCRAFT WAS RETURNED TO SERVICE.
- [SDR CA140716003](https://openairdocs.org/sdr/CA140716003), Jul 9, 2014: BEARING. FAILED. (CAN) DURING ENGINE GROUND RUN TO TROUBLESHOOT A PROPELLER SYNCHROPHASER DEFECT, THE NR 3 THROTTLE JAMMED AS IT WAS BEING RETARDED BELOW CROSSOVER. THE ENGINE W
- [SDR LR7A2014053100730](https://openairdocs.org/sdr/LR7A2014053100730), May 31, 2014: RETAINER. CRACKED. DURING SCHEDULED B-2 CHECK, FOUND NR 2 ENGINE QEC FIRESEAL RETAINER & ANGLE BROKEN ON LOWER LT SIDE OF FIREWALL, REPAIRED IAW MEA 382-71-14-012.
- [SDR CA131203001](https://openairdocs.org/sdr/CA131203001), Oct 4, 2013: SPAR CAP. CORRODED. (CAN) HORIZONTAL STABILIZER FWD UPPER SPAR CAP FROM BL 61 TO BL 70 HAS TOOLING MARKS AT FASTENER LOCATIONS. WORK CARRIED OUT IAW RESPONSE BAD70001-2013-000007 A
- [SDR CA130308004](https://openairdocs.org/sdr/CA130308004), Mar 6, 2013: BEAM. CRACKED. (CAN) THE ACFT WAS OPERATING AND WHILE ON THE RETURN TRIP THE CREW REPORTED HEARING A LOUD BANG IN THE CARGO SECTION FOLLOWED BY THE INABILITY TO MAINTAIN CABIN
- [SDR CA130123009](https://openairdocs.org/sdr/CA130123009), Jan 4, 2013: COLLAR. CORRODED. (CAN) FORWARD NLG UPPER CYLINDER STEERING COLLAR WAS DIFFICULT TO RETURN DURING GROUND HANDLING. UPON INVESTIGATION THE STEERING COLLAR WAS DISPLACED AND CORROS
- [SDR LR7A2012121900428](https://openairdocs.org/sdr/LR7A2012121900428), Dec 19, 2012: HOUSING. FAILED. DURING DESCENT, NR 1 ENGINE FLAMED OUT, THEN RELIT, FOLLOWED BY 105 PERCENT RPM SHUTDOWN IAW QRH PROCEEDURES. R & R VALVE HOUSING ASSY IAW HN61135 LP 38080.
- [SDR CA121029008](https://openairdocs.org/sdr/CA121029008), Oct 5, 2012: BEAM. CRACKED. (CAN) DURING ROUTINE INSPECTION, RT MLG BEAM AT BS 517, WL 214, WAS FOUND CRACKED. PN 388394-2, BEAM CAP WAS REPLACED WITH NEW PART IAW SMP 583, CHAPTER 51-60 A
- [SDR CA120905001](https://openairdocs.org/sdr/CA120905001), Sep 1, 2012: HOSE. RUPTURED. (CAN) THE FLIGHT REPORTED A HYDRAULIC ISSUE SHORTLY AFTER TAKEOFF AND RETURNED TO DEPARTING STATION FOR REPAIRS. MAINTENANCE PERSONNEL FOUND THE NOSE GEAR ACTUA
- [SDR LR7A2012082500395](https://openairdocs.org/sdr/LR7A2012082500395), Aug 25, 2012: CONTROL UNIT. FAULTY. DURING CRUISE FLIGHT NR 1 ENGINE FIRE LIGHT ILLUMINATED, SHUTDOWN NR 1 ENGINE. INSPECTED ENGINE FOR EVIDENCE OF FIRE OR BLEED AIR LEAKAGE, REPLACED NR 1 FIRE CO
- [SDR LR7A2012081400389](https://openairdocs.org/sdr/LR7A2012081400389), Aug 14, 2012: SKIN. DENTED. DENT RT AFT FUSELAGE, FS 800, WL 146, RBL 64. REPAIRED RT AFT FUSELAGE SKIN IAW SMP 583, FIGURE 51-140-12.
- [SDR LR7A2012081300390](https://openairdocs.org/sdr/LR7A2012081300390), Aug 13, 2012: BULKHEAD WEB. CRACKED. DURING SCHEDULED B-1 INSPECTION, FOUND NLG WHEEL WELL BULKHEAD WEB CRACKED AT FS165, RBL70, WL171. REPAIR ACCOMPLISHED IAW SMP 583, FIG 51-140-17, NR 2-5-2.
- [SDR LR7A2012081300391](https://openairdocs.org/sdr/LR7A2012081300391), Aug 13, 2012: WEB. CRACKED. DURING SCHEDULED B-1 INSPECTION, FOUND RT AFT BULKHEAD WEB CRACKED AT FS 880, RBL 63. REPAIR ACCOMPLISHED BY REPLACEMENT IAW SMP583, 51-60 AND 51-70.
- [SDR LR7A2012081300392](https://openairdocs.org/sdr/LR7A2012081300392), Aug 13, 2012: STRUCTURE. GOUGED. DURING SCHEDULED B-1 INSPECTION, FOUND LT SLOPING LONGERON GOUGED AT FS 859, LBL 61.62. REPAIR ACCOMPLISHED IAW LAC MEA 382-53-12-088.
- [SDR LR7A2012081300393](https://openairdocs.org/sdr/LR7A2012081300393), Aug 13, 2012: BULKHEAD. CRACKED. DURING SCHEDULED B-1 INSPECTION, FOUND LT AFT BULKHEAD CAP CRACK AT FS902, LBL63. REPAIR ACCOMPLISHED BY REPLACEMENT IAW SMP583, CH 51-6 AND 51-70.
- [SDR LR7A2012081300394](https://openairdocs.org/sdr/LR7A2012081300394), Aug 13, 2012: SKIN. CRACKED. DURING SCHEDULED B-1 INSPECTION, FOUND RT HORIZONTAL STABILZER UPPER SKIN CRACKED BETWEEN RIVETS FS 1041, HSS61, WL285. REPAIR ACCOMPLISHED IAW MEA 382-55-12-08
- [SDR LR7A2012073100388](https://openairdocs.org/sdr/LR7A2012073100388), Jul 28, 2012: JACKSCREW. SEIZED. FLAPS STUCK AT 15 PERCENT LANDING WAS UNEVENTFUL. R & R NR 7 JACKSCREW IAW SMP 581 27-50-11.
- [SDR CA130115008](https://openairdocs.org/sdr/CA130115008), Apr 26, 2012: BEARING. SPALLED. (CAN) DURING APPROACH THE PROPELLER SPEED DROPPED BELOW LIMITS. ENGINE WAS SHUTDOWN AND ACFT LANDED SAFELY. MAINTENANCE REPLACED THE PROPELLER VALVE HOUSING AND
- [SDR CA120320001](https://openairdocs.org/sdr/CA120320001), Mar 5, 2012: SKIN. LOOSE. (CAN) IN C-CHECK, WHILE PERFORMING OUTGOING PRESSURIZATION/DECAY RATE CHECK THE ACFT PRODUCTION JOINT AT FUSELAGE STATION 245, LEFT HAND, BETWEEN WL 190 AND WL 
- [SDR LR7A2012020200352](https://openairdocs.org/sdr/LR7A2012020200352), Jan 5, 2012: HOUSING. WORN. DURING DESCENT NR 1 ENGINE RPM LOSS FOLLOWED BY FLAMEOUT. SHUTDOWN ENGINE. REPLACED NR 1 VALVE HOUSING IAW LAC HN 61135, LP 35212.
- [SDR CA110614009](https://openairdocs.org/sdr/CA110614009), Jun 12, 2011: DUCT. RUPTURED. SHORTLY AFTER DEPARTURE THE CREW ADVISED THAT THEY HAD SHUTDOWN THE NR 3 ENGINE DUE TO AN OVERHEAT WARNING LIGHT AND THAT THEY WERE RETURNING TO POINT OF DEPART
- [SDR LR7A2010122800161](https://openairdocs.org/sdr/LR7A2010122800161), Dec 22, 2010: SKIN. CORRODED. DURING SCHEDULED B-3, CHECK IAW JOB CARD HB2106 FOUND ACCESS PANEL CUT-OUT DOUBLER CORRODED AT FS477, BL0, WL126. REPLACED DOUBLER IAW SRM SMP583 CH 51-60 AND 5
- [SDR LR7A2010122800162](https://openairdocs.org/sdr/LR7A2010122800162), Dec 22, 2010: REINFORCEMENT. CRACKED. DURING SCHEDULED B-3 CHECK, IAW JOB CARD HB3200, FOUND "SUSPECTED CRACK" IN RADIUS OF THE RT MLG BEAM LOWER REINFORCEMENT PLATE AT FS588, WL146, RBL62. REPLACED
- [SDR LR7A2010122800163](https://openairdocs.org/sdr/LR7A2010122800163), Dec 22, 2010: ANGLE. CRACKED. DURING SCHEDULED B-3 CHECK IAW JOB CARD HB3200. FOUND CRACK IN LT UPPER WHEEL WELL BEAM CAP ANGLE AT FS 528, WL 210, LBL 63. REPLACED WITH NEW IAW SRM SMP583 CH
- [SDR LR7A2010122800164](https://openairdocs.org/sdr/LR7A2010122800164), Dec 22, 2010: ANGLE. CRACKED. DURING SCHEDULED B-3 CHECK IAW JOBCARD HB3200 FOUND CRACK IN RT UPPER WHEEL WELL BEAM CAP ANGLE AT FS528, WL210, RBL63. REPLACED WITH NEW IAW SRM SMP583 CH 51-6
- [SDR CA101015012](https://openairdocs.org/sdr/CA101015012), Oct 15, 2010: LONGERON. DAMAGED. 2 INDICATING HOLES FOUND AT THE NR 4 QEC LONGERON AT THE OTBD LONGERON AT THE INBD AFT HOLE AND THE INBD LONGERON AT THE INBD AFT HOLE. REPAIRED IAW SUPPLIED ER
- [SDR CA101018005](https://openairdocs.org/sdr/CA101018005), Oct 14, 2010: SHAFT. FAILED. FLIGHT CREW REPORTED NR 4 ENGINE DRIVEN GENERATOR OUT, LIGHT ILLUMINATED AND WOULD NOT RESET, FIELD TRIPPED OFF. ACFT COMPLETED THE FLIGHT. GENERATOR WAS FOUND 
- [SDR CA100621014](https://openairdocs.org/sdr/CA100621014), Jun 18, 2010: ROTOR. BROKEN. LT AFT BRAKE ASSY FOUND TO BE UNSERVICEABLE UPON REMOVAL OF WHEEL ASSY. BROKEN PIECES OF BRAKE ROTOR WERE FOUND LODGED BETWEEN THE LAYERS, CAUSING DEFORMATION O
- [SDR LR7A2010041400004](https://openairdocs.org/sdr/LR7A2010041400004), Apr 11, 2010: STANCHION. PUNCTURED. DURING LOADING FOUND .7500" HOLE IN RT STANCHION AT FS 793, RBL 62, WL 212. REPAIRED STANCHION IAW SRM SMP583 FIG 53-50-24. LOG PAGE: 31653
- [SDR CA091214010](https://openairdocs.org/sdr/CA091214010), Dec 13, 2009: HOUSING. MALFUNCTIONED. (CAN) CREW REPORTED THAT WHILE IN CRUISE FLIGHT, IT SEEMED LIKE THE NR 3 ENGINE OVERSPEEDED, THEN DE-COUPLED AND RE-COUPLED AGAIN. PROPELLER RPM READ 107 - 110 
- [SDR CA091007007](https://openairdocs.org/sdr/CA091007007), Oct 4, 2009: BEAM. CRACKED. (CAN) CRACK WAS FOUND ON VISUAL INSP OF MLG WHEEL WELL INTIAL REPORT CRACK LOOKED 2 INCHES LONG FUTHER INVESTIGATION SHOWED CRACK MIGRATING TO MLG TRACK. REMOVA
- [SDR LR7A2009100500129](https://openairdocs.org/sdr/LR7A2009100500129), Oct 2, 2009: ENGINE. FLAMED OUT. NR 2 ENG INFLIGHT SHUTDOWN DUE TO FLAMEOUT. NO OTHER INDICATIONS. 1302Z. ENG SHUTDOWN PROCEDURES COMPLIED WITH. ACFT FERRIED FOR REPAIR. REMOVED AND REPLACED NR
- [SDR CA090914001](https://openairdocs.org/sdr/CA090914001), Sep 11, 2009: HOUSING. LEAKING. (CAN) SEPT 11/09 C-GHPW NR 1 RPM DROPPED 1% TO 99% IN CRUISE, FURTHER DROPPED TO 96%. PITCHLOCK CHECK CARRIED OUT OKAY. RPM CONTINUED TO SLOWLY DROP. AT 95% THE
- [SDR CA090727002](https://openairdocs.org/sdr/CA090727002), Jul 23, 2009: SWITCH. FAULTY. (CAN) ACFT TAXIED TO POSITION, CREW NOTICED A STRONG ODOR AND REALIZED THAT SMOKE WAS COMING FROM AN OVERHEAD PANEL AT THE FLIGHT ENGINEERS STA. ACFT WAS SHUTDO
- [SDR LR7A2009091900075](https://openairdocs.org/sdr/LR7A2009091900075), Jun 16, 2009: HOSE. SPLIT. ENGINE SHUTDOWN PROCEDURES PERFORMED AFTER NR 2 ENGINE FLAME OUT DURING CRUISE FLIGHT. MAINTENANCE FOUND RT 10TH STAGE BLEED VALVE HOSE SPLIT. HOSE REPLACED IAW
- [SDR CA090513003](https://openairdocs.org/sdr/CA090513003), Apr 7, 2009: MOUNT. CORRODED. (CAN) AT INSPECTION THE NR 2 AND 3 POSITION OTBD LOWER ENGINE TRUSS MOUNTS WERE FOUND TO HAVE CORROSION PITTING BEYOND ACCEPTABLE LIMITS. THE UNITS WERE REPLACE
- [SDR CA090227005](https://openairdocs.org/sdr/CA090227005), Feb 26, 2009: OIL SYSTEM. LEAKING. (CAN) ENROUTE, THE CREW OBSERVED A LOW OIL QUANTITY LIGHT ON NR 3 PROPELLER DURING THE DESCENT. THE ACFT WAS RETURNING TO POINT OF DEPARTURE WHEN APPROX 100 MIL
- [SDR CA090210005](https://openairdocs.org/sdr/CA090210005), Feb 6, 2009: HOUSING. LEAKING. DEPARTING YZF THE CREW OBSERVED A LOW OIL INDICATION ON NR 3 PROPELLER IN THE CLIMB WITH NORMAL RPM. THE PROPELLER RPM INCREASED TO 103 PERCENT SHORTLY AFTER AN
- [SDR CA090121002](https://openairdocs.org/sdr/CA090121002), Jan 19, 2009: WINDSCREEN. FAILED. (CAN) AFTER DEPARTING, THE ACFT SUFFERED A CENTER WINDSHIELD OUTER PANE FAILURE. THE CREW REDUCED CABIN PRESSURE AND THE ACFT RETURNED TO POINT OF DEPARTURE AND
- [SDR CA090112014](https://openairdocs.org/sdr/CA090112014), Jan 9, 2009: SEAL. LEAKING. (CAN) SHORTLY AFTER DEPARTING YELLOWKNIFE, AT APPROXIMATELY 55 NAUTICAL NORTH THE CREW OBSERVED A NR 2 PROP LOW OIL INDICATION ILLUMINATED. THE CREW SHUT DOWN N
- [SDR CA080811001](https://openairdocs.org/sdr/CA080811001), Jul 29, 2008: ALTERNATOR. FAILED. (CAN) ON DESCENT, CREW OBSERVED THE NR 2 GENERATOR FAIL WAS ILLUMINATED. THE NR2 ENGINE WAS SHUTDOWN AND THE ACFT RETURNED TO POINT OF DEPARTURE AND LANDED WITH
- [SDR CA080729003](https://openairdocs.org/sdr/CA080729003), Jul 24, 2008: BOLT. FAILED. (CAN) ENROUTE, THE LOAD MASTER OBSERVED AN UNUSUAL SOUND FROM THE CARGO BAY AREA. UPON INVESTIGATION AN UNUSUAL GAP WAS NOTICED BETWEEN THE LANDING GEAR BAY WEB

All 231: https://openairdocs.org/engine/allison-501-d22a/reports.md

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