# Service difficulty reports: Allison AE-3007C1

A list on [Allison AE-3007C1](https://openairdocs.org/engine/allison-ae-3007c1.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 78 reports

- [SDR 2025FA0000656](https://openairdocs.org/sdr/2025FA0000656.md): Hydraulic Line · leaking · Sep 14, 2025 · N750E · Cessna 750 · Hydraulic System, Main
  > PILOT REPORTED: ON TAKEOFF AT KPHL, WE LOST A SYSTEM HYDRAULICS WHEN RAISING THE GEAR. LOST VOLUME ON THE A SIDE. WE LANDED AT KPNE AFTER RUNNING APPROPRIATE EMERGENCY CHECK LISTS. ON INSPECTING THE AIRCRAFT AFTER LANDING, WE DISCOVERED HYDRAULIC FLUID LEAKING
- [SDR 2025FA0000653](https://openairdocs.org/sdr/2025FA0000653.md): Generator · bowed · Aug 13, 2025 · N577JC · Cessna 750 · DC Generator-Alternator
  > LOST EVERYTHING ON THE RIGHT SIDE. INCLUDING MACH TRIM FEDEC FAULTS FIVE INDICATIONS. DAU FAILS, TRIM FAIL.
- [SDR 4USA2025072100510](https://openairdocs.org/sdr/4USA2025072100510.md): Generator · failed · Jul 19, 2025 · N734DJ · Cessna 750 · DC Generator-Alternator
  > DURING CRUISE, CREW REPORTED “GEN FAIL R”. APPROXIMATELY 5-10 MINUTES LATER, IT WAS FOLLOWED BY “OIL LEVEL LOW R”. ABOUT 5 MINUTES LATER, THE CAPTAIN NOTICED THE OIL PRESSURE AND ITT START TO MOVE SO HE IMMEDIATELY SHUT THE ENGINE DOWN IN FLIGHT TO PREVENT FUR
- [SDR LDIA2025051400001](https://openairdocs.org/sdr/LDIA2025051400001.md): Generator · destroyed · May 12, 2025 · N75HS · Cessna 750 · AC Generator-Alternator
  > DC GENERATOR BEARING FAILED CAUSING GENERATOR TO PARTIALLY DISINTEGRATE AND BECOME DETACHED FROM ITS DRIVE PAD. DURING THE FAILURE THE FIRE LOOP WAS STRUCK CAUSING IT TO FAIL, OIL WAS RELEASED FROM THE ENGINE CAUSING A LOSS OF OIL PRESSURE, AND THE HEAT FROM T
- [SDR 9JLA202501170001](https://openairdocs.org/sdr/9JLA202501170001.md): Pump · leaking · Jan 16, 2025 · N222FY · Cessna 750 · Hydraulic Pump (Electric/Engine), Main
  > LEFT ENGINE DRIVEN HYDRAULIC PUMP LEAKING.
- [SDR 3EJA202405060001](https://openairdocs.org/sdr/3EJA202405060001.md): Oil System · overtemp · May 5, 2023 · N945JS · Cessna 750 · Turbine Engine Oil System
  > ENGINE OIL TEMPERATURE WENT TO 160, CHECKLIST WAS FOLLOWED OIL TEMPERATURE STABILIZED AFTER A FEW MINUTES, POWER WAS REAPPLIED AND OIL TEMPERATURE IMMEDIATELY SPIKED TO 160. PRECAUTIONARY SHUTDOWN CHECKLIST WAS FOLLOWED PER THE HIGH OIL TEMPERATURE CHECKLIST.
- [SDR 2022F00429](https://openairdocs.org/sdr/2022F00429.md): Shaft · sheared · Oct 28, 2022 · N750EA · Cessna 750 · AC Generator-Alternator
  > DURING A POSITIONING FLIGHT FROM KPNE TO KHPN, THE CREW EXPERIENCED AN ABNORMAL OIL INDICATION ON ENGINE NO. 1. THE CHECKLIST DIRECTED THE CREW TO SHUTDOWN THE ENGINE AS A PRECAUTIONARY ACTION. THE CREW ASSESSED THE PROBLEM, DECLARED AN EMERGENCY AND LANDED
- [SDR VQMA20210819804](https://openairdocs.org/sdr/VQMA20210819804.md): Engine · power loss · Aug 18, 2021 · N939TX · Cessna 750 · Engine (Turbine/Turboprop)
  > DESCENDING FROM FL270 TO FL160 AND LEVELING OFF, FLIGHT CREW EXPERIENCED A SIGNIFICANT LOSS OF POWER TO BOTH ENGINES. AIRCRAFT WAS CONFIGURED AT TBL FOR LANDING. MAX ITT INDICATED 753 DEGREES. N1 INDICATED 82.5 PERCENT. CREW WAS ONLY ABLE TO MAINTAIN A MAX
- [SDR AWKA2020121701](https://openairdocs.org/sdr/AWKA2020121701.md): Engine · making metal · Dec 12, 2020 · N764XJ · Cessna 750 · Engine (Turbine/Turboprop)
  > DURING CLIMB OUT FROM OPF, FLIGHT CREW RECEIVED A "CHIP DETECT R" CAS MESSAGE. CREW CONVEYED THEIR SITUATION TO ATC AND REQUESTED REROUTE BACK TO OPF FOR SAFETY AND MAINTENANCE. SOON AFTER, CREW WAS REQUESTED TO DIVERT TO FXE, AND WAS ABLE TO COORDINATE WITH
- [SDR AWKA2020100301](https://openairdocs.org/sdr/AWKA2020100301.md): Fuel Sys · overtemp · Oct 1, 2020 · N765XJ · Cessna 750 · Engine Fuel and Control
  > DURING CLIMB OUT, FLIGHT CREW NOTED THAT THE LT FUEL TEMP WAS RISING AND SOON AFTER RECEIVED AN AMBER FUEL TEMP L CAS MESSAGE. CREW RAN THE CHECKLIST, AND IN THE MEANTIME THE CAS MESSAGE WENT AWAY, SO THEY CONTINUED THEIR CLIMB. THE FUEL TEMP BEGAN RISING AG
- [SDR 2020FA0000189](https://openairdocs.org/sdr/2020FA0000189.md): Printed Ckt Board · defective · Mar 4, 2020 · N587SL · Cessna 750 · Stabilizer Control System
  > CREW REPORTED DURING COCKPIT SETUP PRIOR TO DEPARTURE, A "SECONDARY TRIM FAIL" AMBER CAS MESSAGE ILLUMINATED. THIS SYSTEM IS REQUIRED FOR DISPATCH, AND THE AIRCRAFT CANNOT BE RELIEVED USING THE MEL OR MMEL. SUBSEQUENT TESTING OF THIS SYSTEM WAS PERFORMED AND
- [SDR ASOA2019081547096](https://openairdocs.org/sdr/ASOA2019081547096.md): Mount · corroded · Aug 14, 2019 · N13989 · Emb EMB145LR · Engine (Turbine/Turboprop)
  > NR 2 ENGINE FORWARD INBOARD ACCESSORY GEARBOX MOUNT POINT CORRODED. REPAIRED AREA IN ACCORDANCE WITH TECHNICAL VARIANCE 204465 BY BLENDING OUT CORROSION AND APPLYING PROTECTIVE AREA.
- [SDR HNAA2018092800234](https://openairdocs.org/sdr/HNAA2018092800234.md): Engine · power loss · Sep 27, 2018 · N620AE · Emb EMB145LR · Engine (Turbine/Turboprop)
  > PDIS 620 76-10 1911661 27SEP18 ROA CLOSE REJECTED TAKE OFF DUE NO.2 ENGINE LOSS OF POWER. 26010 00 VAG FACT 27SEP18 22:52 ROA PERFORMED AC ENGINE RUN. START AND HIGH POWER IAW EM
- [SDR 2018F00030](https://openairdocs.org/sdr/2018F00030.md): O-Ring · failed · Jan 29, 2018 · N795HG · Cessna 750 · Hydraulic System, Main
  > AFTER TAKEOFF, DURING FLIGHT A FAILURE OF THE NR 1 HYDRAULIC SYS OCCURRED. THE PRESSURE WAS LOST AND THE QTY INDICATION DROPPED TO ZERO. AFTER COMPLETING THE CHECKLIST, ACFT LANDED. EMERGENCY GEAR EXTENSION USED, AND EMERGENCY BRAKING, FOUND AN O-RIN
- [SDR HNAA2017070500227](https://openairdocs.org/sdr/HNAA2017070500227.md): Connector · dirty · Jul 1, 2017 · N601DW · Emb EMB145LR · Engine Indicating System
  > LOW PRESSURE COMPRESSION INDICATION AT HIGHEST POINT IN THE YELLOW RANGE. CLEANED THE FADEC 1A & 1B CONNECTORS IAW MM 70-00-00, RAN ACFT, NO DEFECTS NOTED.
- [SDR HNAA2017062800219](https://openairdocs.org/sdr/HNAA2017062800219.md): Oil System · low · Jun 27, 2017 · N637AE · Emb EMB145LR · Turbine Engine Oil System
  > ENGINE LOW OIL. SERVICED THE NR 1 ENGINE OIL IAW AMM 12-12-01.
- [SDR DXTA2016092706310](https://openairdocs.org/sdr/DXTA2016092706310.md): Reservoir · empty · Sep 27, 2016 · N938QS · Cessna 750 · Engine Oil Storage (Airframe Furnished)
  > DURING CRUISE AT FL410, AN LT OIL LOW LEVEL CAS MESSAGE ALONG WITH A RAPIDLY DECREASING OIL LEVEL INDICATION WAS OBSERVED. WE DECLARED AN EMERGENCY AND PREFORMED A PRECAUTIONARY IN FLIGHT SHUTDOWN. AFTER LANDING, A VISUAL INSPECTION OF THE RESERVOIR SHOWED C
- [SDR E0YA201608090001](https://openairdocs.org/sdr/E0YA201608090001.md): Hose · leaking · Aug 5, 2016 · N84EA · Cessna 750 · Hydraulic System, Main
  > AFTER INITIAL CLIMB OUT, THE CREW NOTED A STEADY DEPLETION OF THE "A" HYDRAULIC SYSTEM. AFTER ASCERTAINING THE FLIGHT COULD CONTINUE SAFELY, THE CONTINUED ON AND LANDED. THE AIRCRAFT WAS SHUT DOWN ON THE RUNWAY AND TOWED TO THE HANGAR DUE TO NO BRAKES AVAILAB
- [SDR DJFA20151126001](https://openairdocs.org/sdr/DJFA20151126001.md): Engine · surges · Nov 26, 2015 · N708FL · Cessna 750 · Engine (Turbine/Turboprop)
  > DURING CLIMB OUT, CREW REPORTED THE LT ENG SURGED & ROLLED BACK MULTIPLE TIMES. ACFT RETURNED TO THE DEPARTURE AIRPORT & LANDED SAFELY. REPLACED THE NR 2 ENG.
- [SDR DXTA2015071306043](https://openairdocs.org/sdr/DXTA2015071306043.md): Generator · failed · Jul 10, 2015 · N930QS · Cessna 750 · AC Generator-Alternator
  > AFTER NR 1 ENGINE START, A RECEIVED WINDSHIELD HEAT INOP LT CAS MESSAGE. RAMP PERSONNEL SIGNALED TO SHUTDOWN. NOTICE LARGE AMOUNTS OF SMOKE FROM ENGINE. EVIDENCE OF A FIRE CAN BE SEEN INSIDE OF COWLING. FOUND BURNS ON INSIDE OF ALTERNATOR EXHAUST ON LOWE
- [SDR ASOA20150312018](https://openairdocs.org/sdr/ASOA20150312018.md): Yoke · cracked · Mar 13, 2015 · N14920 · Emb EMB145LR · Engine Mount Section
  > DURING ROUTINE MAINTENANCE THE LT ENGINE FORWARD LOWER YOKE FITTING WAS FOUND CRACKED. MAINTENANCE REPLACED THE FITTING IAW SB 145-54-0013 AND STS EA 26-2014-063.
- [SDR DXTA2014081505857](https://openairdocs.org/sdr/DXTA2014081505857.md): Carbon Seal · unserviceable · Aug 14, 2014 · N927QS · Cessna 750 · Turbine Engine Oil System
  > AFTER APU START WAS ONLY GETTING HOT AIR COMING OUT OF CABIN GASPERS. SELECTED MAX COOL FOR APU THEN SMOKE STARTED FILLING THE PLANE. FOUND BOTH COCKPIT & CABIN TEMP SENSORS TO HAVE DIRT & DEBRIS. CLEANED BOTH TEMP SENSORS. FOUND CABIN TEMP SENSOR FAN INOPER
- [SDR AWKA2014042106421](https://openairdocs.org/sdr/AWKA2014042106421.md): Actuator · failed · Apr 18, 2014 · N706XJ · Cessna 750 · Elevator Control System
  > WHILE EN ROUTE TO TEB, THE FLIGHT CREW RECEIVED A PITCH FEEL FAIL CAUTION MSG. THE DECISION TO DIVERT INTO OPF WAS MADE FOLLOWED BY AN UNEVENTFUL LANDING. TECHNICIANS FROM SERVICE CTR WERE DISPATCHED TO INSPECT & REPAIR THE ACFT. IT WAS DETERMINED THAT A PI
- [SDR CHQA20140317087](https://openairdocs.org/sdr/CHQA20140317087.md): Proximity Switch · out of adjust · Mar 17, 2014 · N267SK · Emb EMB145LR · Landing Gear Position and Warning
  > CREW REPORTED THAT THEY RECEIVED AN ENG 2 THRUST REVERSER DISAGREE MSG DURING CLIMB OUT. THE CREW SHUT DOWN THE NR 2 ENG AS A PRECAUTION, DECLARED EMERGENCY & RETURNED TO FIELD. THE ACFT LANDED WITHOUT FURTHER INCIDENT. MX DEFERRED ENG 2 THRUST REVERSER. T
- [SDR AWKA201310250002](https://openairdocs.org/sdr/AWKA201310250002.md): Seal · leaking · Oct 23, 2013 · N760XJ · Cessna 750 · Turbine Engine Compressor Section
  > WHILE ON A MAINTENANCE FLIGHT, REPORTED SMOKE IN THE COCKPIT ON TAKEOFF. ACFT RETURNED FOR FURTHER INSPECTION. INSPECTION OF THE LT ENGINE REVEALED A LEAKING COMPRESSOR SEAL WHICH WAS INTRODUCING OIL INTO THE BLEED AIR SYS HIGHER POWER SETTINGS. THE ENGIN
- [SDR XCGA60ES92013](https://openairdocs.org/sdr/XCGA60ES92013.md): Actuator · inoperative · Sep 20, 2013 · N60ES · Cessna 750 · Turbine Engine Air Inlet Section
  > ON DESCENT, THE RIGHT ENGINE SHUTDOWN AND THE FADEC FAIL RT CAS MESSAGE ILLUMINATED. PILOTS ATTEMPTED TO RESET THE FADEC WITHOUT SUCCESS AND THEN COMPLIED WITH THE EMERGENCY CHECKLIST. THE AIRPLANE LANDED WITHOUT INCIDENT AND WAS TURNED OVER TO MX AT THE SER
- [SDR NOZA2013F00160](https://openairdocs.org/sdr/NOZA2013F00160.md): Line · failed · Aug 19, 2013 · N9NG · Cessna 750 · Hydraulic System, Main
  > NOSE LANDING GEAR RETRACT HYDRAULIC LINE WAS COMPROMISED ON GEAR RETRACTION SHORTLY AFTER TAKEOFF, RESULTING IN LOSS OF THE A SYSTEM HYDRAULICS. POSTFLIGHT INSPECTION REVEALED A BLOWOUT OF THE HOSE JUST BELOW THE ATTACH FITTING. HOSE REPLACED AS WELL AS THE
- [SDR DJFA20130703001](https://openairdocs.org/sdr/DJFA20130703001.md): Unknown · faulted · Jul 3, 2013 · N733FL · Cessna 750 · Attitude and Direction Data System
  > CREW REPORTED AT FL450, LOST GUIDANCE COMPUTERS A & B WHICH CAUSED LOSS OF NUMEROUS FLIGHT INSTRUMENTS. DESCENDED TO FL300. DECLARED AN EMERGENCY AND DIVERTED. ACFT LANDED WITHOUT INCIDENT. MX COULD NOT DUPLICATE THE DISCREPANCY.
- [SDR DJFA20130626001](https://openairdocs.org/sdr/DJFA20130626001.md): Fms · smoke · Jun 26, 2013 · N733FL · Cessna 750 · Flight Management Computing Hardware System
  > WHILE ON SHORT FINAL, CREW REPORTED THE NR 1 FMS DISPLAY WENT BLANK FOLLOWED BY AN ODOR OF SMOKE. MX VERIFIED THE NR 1 FMS WAS INOPERATIVE AND REPLACED THE UNIT.
- [SDR DJFA20130609001](https://openairdocs.org/sdr/DJFA20130609001.md): Sensor · false indication · Jun 9, 2013 · N736FL · Cessna 750 · Battery/Charger System
  > CREW EXPERIENCED A NR 2 BATTERY OVER TEMP, DECLARED AN EMERGENCY AND DIVERTED, DURING DECENT TO LAND, BATTERY TEMP CYCLED BETWEEN 50 DEGREES C AND 100 DEGREES C SEVERAL TIMES. MX PERFORMED INSPECTION CHECKS OF THE NR 2 BATTERY SYS, BENCH TESTED BATTERY AND A
- [SDR DJFA20130602001](https://openairdocs.org/sdr/DJFA20130602001.md): Acm · failed · Jun 2, 2013 · N721FL · Cessna 750 · Cabin Cooling System
  > DURING DESCENT FOR LANDING, CREW NOTICED AN OIL BURNING ODOR. ON LANDING AND DURING TAXI THE CABIN FILLED WITH SMOKE AND CABIN A/C PACK REACHED OVER 200 DEGREES F. MX FOUND THE CABIN ACM FAILED AND REPLACED THE UNIT.
- [SDR DJFA20130505001](https://openairdocs.org/sdr/DJFA20130505001.md): Acm · failed · May 5, 2013 · N713FL · Cessna 750 · Cabin Cooling System
  > CREW REPORTED, WHILE ON THE GROUND WITH APU RUNNING THE NR 2 A/C PACK OVERTEMPED WHILE IN AUTO POSITION AND THE CABIN FILLED WITH SMOKE. MX FOUND THE NR 2 A/C PACK HAD FAILED AND REPLACED THE UNIT.
- [SDR DJFA20130423002](https://openairdocs.org/sdr/DJFA20130423002.md): Bracket · cracked · Apr 23, 2013 · N733FL · Cessna 750 · Wing, Attach Fittings
  > CREW REPORTED OF A NOTICEABLE "SLACK" IN THE YOKE CAUSING A DELAY OF INPUT FOR A TURN. NOTED AT ALTITUDE WITH THE AUTOPILOT ON THE WINGS WOULD SLOWLY ROLL AND THEN A MECHANICAL "BUMP" COULD BE FELT CORRECTING, THIS WOULD CYCLE ABOUT EVERY 10-15 SECONDS. MX
- [SDR DJFA20130326001](https://openairdocs.org/sdr/DJFA20130326001.md): Acm · seized · Mar 27, 2013 · N712FL · Cessna 750 · Cabin Cooling System
  > CREW REPORTED THAT THE COCKPIT A/C PACK EMMITTED SMOKE AND THE AIR TEMPERATURE WAS UNCONTROLLABLE. MX FOUND THE ACM HAD FAILED AND REPLACED THE UNIT.
- [SDR DJFA20130318001](https://openairdocs.org/sdr/DJFA20130318001.md): Brake · dirty · Mar 18, 2013 · N709FL · Cessna 750 · Landing Gear Brake System
  > CREW REPORTED DURING LANDING ROLLOUT WHEN THE LT BRAKE IS APPLIED NOTHING HAPPENS INITIALLY, THEN AFTER CONSIDERABLE PRESSURE IS APPLIED THE LT BRAKE, GRABS PRETTY HARD AND PLANE YAWS TO THE LT. MAINTENANCE INSPECTED THE BRAKE SYS AND TAXI CHECKED THE ACFT, T
- [SDR DJFA20121127001](https://openairdocs.org/sdr/DJFA20121127001.md): Charger · failed · Nov 27, 2012 · N732FL · Cessna 750 · Emergency Equipment
  > CREW REPORTED ELECTRICAL BURNING ODOR DURING FLIGHT COMING FROM OUTLET FOR EFB. AFTER NOTICING ODOR, IT WAS NOTED THE EFB WAS NO LONGER SHOWING A CHARGE. MX FOUND THE POWER ADAPTOR FOR THE EFB FAILED AND REPLACED IT.
- [SDR DJFA20121114001](https://openairdocs.org/sdr/DJFA20121114001.md): Acm · failed · Nov 16, 2012 · N732FL · Cessna 750 · Cabin Cooling System
  > CREW REPORTED SMELLING SMOKE AND OIL IN THE CABIN WITH THE APU RUNNING. MX FOUND THE FORWARD ACM FAILED AND REPACED IT.
- [SDR DXTA2012091705124](https://openairdocs.org/sdr/DXTA2012091705124.md): Brake · inoperative · Sep 15, 2012 · N918QS · Cessna 750 · Landing Gear Brake System
  > LT BRAKE GRABS EXCESSIVELY DURING BRAKE APPLICATION. PERFORMED TAXI CHECK AND FOUND LH BRAKE LEAKING AT PUCKS. RAMPED AIRCRAFT AND REMOVED WHEEL AND TIRE FOR ACCESS. REMOVED AND REPLACED LH OUTBOARD BRAKE ASSEMBLY IAW CE-750 MM 32-42-01. BLED BRAKES IAW CE-7
- [SDR DXTA2012091405121](https://openairdocs.org/sdr/DXTA2012091405121.md): Unknown · odor · Sep 13, 2012 · N944QS · Cessna 750 · Air Distribution System
  > FOUL ODOR FROM CABIN PAC DURING FLIGHT. REMOVED CABIN HEAT EXCHANGER AND CLEANED. REMOVED AND REPLACED CABIN TURBO COMPRESSOR. PERFORMED DUCT BURN OUT PROCEDURE. OPS AND LEAK CHECKED NORMAL IAW MM 21-51-00 AND SERVICE BULLETIN 21-2171 REV 2. CLEANED BOTH WA
- [SDR CWQR20120906046](https://openairdocs.org/sdr/CWQR20120906046.md): Firewall · cracked · Sep 6, 2012 · N918QS · Cessna 750 · Fuselage Main, Bulkhead
  > DURING A SCHEDULED MX CHECK, FOUND A 4 INCH CRACK IN THE LT ENGINE INLET FIREWALL, PN 6752103-1. A SERVICE CONDITION REPORT AND PICTURES HAVE BEEN SENT TO MFG UNDER SCR 633706.
- [SDR CWQR20120906047](https://openairdocs.org/sdr/CWQR20120906047.md): Bulkhead · cracked · Sep 6, 2012 · N918QS · Cessna 750 · Nacelle/Pylon, Bulkhead/Firewall
  > DURING A SCHEDULED MX CHECK, FOUND CRACKS AT TWO FASTENER LOCATIONS IN THE LT ENGINE INLET BULKHEAD. A SERVICE CONDITION REPORT AND PICTURES HAVE BEEN SENT TO MFG UNDER SCR 633714.
- [SDR CWQR20120904045](https://openairdocs.org/sdr/CWQR20120904045.md): Piccolo Tube · cracked · Sep 4, 2012 · N918QS · Cessna 750 · Engine Air Intake System
  > DURING A SCHEDULED MX CHECK, FOUND THE LT ENGINE BLEED AIR PICCOLO TUBE TO BE LOOSE. UPON DISASSEMBLY WE FOUND THE TUBE STANDOFFS CRACKED, AND 4 OF 5 SEPARATED FROM THE TUBE ASSEMBLY. A SERVICE CONDITION REPORT AND PICTURES HAVE BEEN SENT TO MFG UNDER SCR 6
- [SDR DJFA20120822002](https://openairdocs.org/sdr/DJFA20120822002.md): Line · chafed · Aug 22, 2012 · N710FL · Cessna 750 · Hydraulic System, Main
  > ON TAKEOFF DURING GEAR RETRATION CREW REPORTED LOST OF "A" HYD SYS PRESSURE AND QUANITY. EMERGENCY WAS DECLARED AND ACFT LANDED SAFE USING EMEGENCY BRAKE SYSTEM. MX FOUND THE NOSE GEAR CENTERING LINE BLOWN AND REPLACED.
- [SDR DXTA2012082305102](https://openairdocs.org/sdr/DXTA2012082305102.md): Relay · burned · Aug 22, 2012 · N927QS · Cessna 750 · Electrical Power System Wiring
  > ON MASTER CABIN CONTROL PANEL ON GALLEY NOTICED "FAULT" LIGHT ON RT LIQUID. REMOVED GALLEY DRAWER TO ACCESS CIRCUIT BREAKERS FOR GALLEY LIQUIDS AND DETECTED A BURNING ELECTRICAL ODOR. REMOVED WORN OUT SOLID STATE RELAY. INSTALLED NEW RELAY AND OPS CHECKED
- [SDR DJFA20120812001](https://openairdocs.org/sdr/DJFA20120812001.md): Seal · chafed · Aug 12, 2012 · N733FL · Cessna 750 · Passenger/Crew Doors
  > DURING CRUISE FLIGHT, CREW REPORTED A WHISTLING SOUND FROM THE MAIN ENTRY DOOR IN THE CABIN, FOLLOWED BY A RUSH OF AIR AND PRESSURIZATION LOSS AT A 2000 FPM RATE. EMERGENCY WAS DECLARED, THE PASSENGER O2 MASKS WERE DEPLOYED AND AN EMERGENCY DESCENT WAS INITIA
- [SDR DXTA2012081305090](https://openairdocs.org/sdr/DXTA2012081305090.md): Cable · out of tolerance · Aug 10, 2012 · N955QS · Cessna 750 · Landing Gear Retraction/Extension System
  > RED GEAR UNLOCK LIGHT ON WHEN GEAR WAS RETRACTED. NO NOISE OR VIBRATIONS. 3 GREEN WITH NO RED WHEN GEAR WAS EXTENDED. HANDLE WENT TO THE FULL UP POSITION. ADJUSTED NOSE LANDING GEAR EMERGENCY RELEASE CABLE TENSION IAW CE-750 M/M 32-30-06. LANDING GEAR OPS
- [SDR DXTA2012080205071](https://openairdocs.org/sdr/DXTA2012080205071.md): Acm · failed · Aug 1, 2012 · N937QS · Cessna 750 · Cabin Cooling System
  > SHORTLY AFTER ENGINE START NOTICED BAD ODOR COMING FROM WEMACS. CABIN PAC SUPPLY TEMP RAPIDLY RISING AND CABIN FILLED WIT DARK SMOKE. EVACUATED AIRCRAFT AND TURNED PAC OFF AND TEMP SLOWLY STARTED TO DECREASE. R & R THE ACM IAW MM 21-51-00. OPS AND LEAK CHECK
- [SDR DJFA20120730001](https://openairdocs.org/sdr/DJFA20120730001.md): Acm · seized · Jul 30, 2012 · N730FL · Cessna 750 · Cabin Cooling System
  > ON THE GROUND, CREW NOTED SMOKE IN THE CABIN. SMOKE WAS EMANATING FROM THE CABIN AIR VENTS. MX FOUND THE CABIN AIR CYCLE MACHINE FAILED. THE UNIT WAS REPLACED.
- [SDR DXTA2012073005064](https://openairdocs.org/sdr/DXTA2012073005064.md): Brake Assy · malfunctioned · Jul 28, 2012 · N997QS · Cessna 750 · Landing Gear Brake System
  > THE LEFT BRAKE PULLS HARD TO THE LEFT WITH EVEN LIGHT APPLICATION OF BRAKING PRESSURE. ON LANDING ROLLOUT THE AIRCRAFT WILL VEER LEFT OF CENTERLINE WHEN EVEN BRAKING PRESSURE IS APPLIED, AND BRAKE PRESSURE NEEDS TO BE RELEASED TO REGAIN FULL DIRECTIONAL CONTRO
- [SDR DXTA2012073005065](https://openairdocs.org/sdr/DXTA2012073005065.md): Landing Gear · failed · Jul 28, 2012 · N922QS · Cessna 750 · Landing Gear Retraction/Extension System
  > AFTER TAKEOFF THE NLG FAILED TO RETRACT. RED UNLOCK LIGHT FOR THE NOSE GEAR STAY ON. LOWER THE MAIN GEAR WE GET 3 GREEN DOWN AND LOCK. BUT THE GEAR STAYS STUCK ON THE DOWN POSITION. OPS CHECK NOSE GEAR CENTERING FUNCTION TO INSURE GEAR IS CENTERING AND ALL

Next page: https://openairdocs.org/engine/allison-ae-3007c1/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE engine_model_key = 'AE3007C1'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/allison-ae-3007c1/reports

---
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.