# Service difficulty reports: Alliedsign TFE731-40AR

A list on [Alliedsign TFE731-40AR](https://openairdocs.org/engine/alliedsign-tfe731-40ar.md).

Newest first. General aviation reporting is voluntary.

- [SDR 2023F00342](https://openairdocs.org/sdr/2023F00342.md): Modulating Valve · sticking · Dec 3, 2023 · N313TT · Amd FALCON50MYST · Air Conditioning System
  > THE FLIGHT WAS GOING AS NORMAL YESTERDAY. ALL SYSTEMS WERE WORKING JUST FINE, AND WE FINISHED OUR CLIMB REACHING A CRUISING ALTITUDE OF FL410 (41,000FT) OVER THE GENERAL LAS VEGAS AREA. THE OUTSIDE AIR TEMPERATURE WAS RELATIVELY COLD YESTERDAY AT ALTITUDE…AROU
- [SDR 2023F00262](https://openairdocs.org/sdr/2023F00262.md): Transmitter · misrepaired · Sep 1, 2023 · N28BQ · Gulstm G150 · Fuel Flow Indicating
  > AIRCRAFT HAD NO FLOW FLOW INDICATION ON RIGHT ENGINE SWAPPED FUEL FLOW TRANSMITTER AND CONFIRMED DISCREPANCY. RECEIVED REPLACEMENT REPAIRED P/N 151-909-004 S/N 750 REF 8130 TRACKING RC07151-1 UNIT FAILED OPERATIONAL CHECK AFTER REPLACEMENT.
- [SDR 2022FA0000468](https://openairdocs.org/sdr/2022FA0000468.md): None · none · Aug 19, 2022 · N28BQ · Gulstm G150 · Hydraulic Power System
  > SHORTLY AFTER TAKEOFF AIRCRAFT EXPERIENCED A TOTAL LOSS OF HYDRAULIC FLUID/PRESSURE. CREW DECLAIRED AN EMERGENCY AND LANDED AT KGGG (LONGVIEW TEXAS). TROUBLESHOOTING IN PROGRESS TO DETERMINE ROOT CAUSE.
- [SDR 2022F00050](https://openairdocs.org/sdr/2022F00050.md): Stabilizer · failed · Nov 20, 2021 · N787BN · Gulstm G150 · Stabilizer Actuator
  > WHILE CRUISING AT 38,000 FT. WE HAD A MACH TRIM FAIL INDICATION. AUTO PILOT KICKED OFF AND AIRCRAFT STARTED TO PITCH UP. WE NO TRIM CONTROL AND TOOK BOTH PILOTS TO PUSH THE YOKE FORWARD TO KEEP AIRPLANE LEVEL.
- [SDR 2021FA0000267](https://openairdocs.org/sdr/2021FA0000267.md): Acm · seized · Sep 16, 2021 · N319CF · Amd FALCON50MYST · Cabin Cooling System
  > AIR CYCLE MACHINE, PART OF COCKPIT AIRCONDITNER SYSTEM SEIZED IN FLIGHT CAUSING A BURNING SMELL AND SMOKE IN AIRCRAFT
- [SDR 2021FA0000124](https://openairdocs.org/sdr/2021FA0000124.md): Seal · frozen · May 5, 2021 · N70NJ · Lear 45LEAR · Aileron Control System
  > THE PILOT LOST AILERON CONTROL WHILE AT CRUISE ALTITUDE. HE REFERRED TO THE QRH FOR AILERON CONTROL JAM AND USED THE SPOILERONS TO REGAIN CONTROL. HE MADE AN EMERGENCY DECENT AND LANDING. UPON INSPECTION, A MAINTENANCE TECHNICIAN DISCOVERED THAT THE AILERON
- [SDR JGVR20191228001](https://openairdocs.org/sdr/JGVR20191228001.md): Pump · defective · Dec 28, 2019 · N150PG · Gulstm G150 · Engine Fuel Pump
  > NR 1 ENGINE FUEL LEAK. FOUND MOTIVE FLOW STAINLESS STEEL HARD LINE FROM THE MOTIVE PUMP TO THE AIRFRAME BROKEN OFF ABOUT.750" FROM THE PUMP. ALSO FOUND THE AGB COVER CRACKED OVER 50% OF THE MOTIVE FLOW PAD. REMOVED THE MOTIVE FLOW PUMP AND FOUND IT WAS VERY D
- [SDR 2019FA0000225](https://openairdocs.org/sdr/2019FA0000225.md): Wheel · corroded · Jun 19, 2019 · N703HA · Gulstm G150 · Wheel/Ski/Float
  > WHEEL REMOVED FROM NR 3 POSITION (RT INB) AND SENT FOR OVERHAUL. WHEEL DISASSEMBLED FOR OVERHAUL AND PREPARED FOR VISUAL AND NDI INSPECTION. BOTH WHEEL HALVES REJECTED DUE TO CORROSION IN BOLT HOLES BEYOND REPAIRABLE LIMITS. BEYOND ECONOMICAL REPAIR, DETERMINA
- [SDR 2018FA0000148](https://openairdocs.org/sdr/2018FA0000148.md): Line · cracked · Apr 10, 2018 · N532GP · Gulstm G150 · Hydraulic System, Main
  > NR 2 RIGHT MAIN HYD PRESSURE LINE IN AFT EQUIPMENT BAY HAD A SMALL CRACK IN THE BEND RADIUS.
- [SDR BON2018F00000](https://openairdocs.org/sdr/BON2018F00000.md): Engine · malfunctioned · Mar 27, 2018 · N984BH · Lear 45LEAR · Engine (Turbine/Turboprop)
  > PILOT REPORTED LEFT ENGINE HAD HIGH VIBRATIONS DURING DESCENT. POWER WAS REDUCED AND THE VIBRATIONS INCREASED, WITH ENGINE COMPUTER MESSAGE AND LOW OIL PRESSURE LIGHT ILLUMINATED. PILOT SHUT DOWN THE LEFT ENGINE AND LANDED WITHOUT FURTHER ISSUES. AIRCRAFT L
- [SDR 2018FA0000336](https://openairdocs.org/sdr/2018FA0000336.md): Fire Loop · inoperative · Aug 16, 2017 · N769ST · Lear 45LEAR · Fire Detection
  > LT ENGINE FIRE LOOP INOPERATIVE. REMOVED AND REPLACED THE FIRE LOOP.
- [SDR J7SA20160521001](https://openairdocs.org/sdr/J7SA20160521001.md): Wire Harness · faulty · May 21, 2016 · N473FX · Lear 45LEAR · Engine Indicating System Wiring
  > DIVERTED DUE TO NR 2 ENG ITT RISING ABOVE LIMITS. THRUST LEVER WAS REDUCED TO IDLE, BUT ITT CONTINUED TO CLIMB. NR 2 ENGINE WAS SHUT DOWN IN FLIGHT, BUT ITT CONTINUED TO CLIMB. THIS WAS AN INDICATING ISSUE. REPLACED MAIN ENG HARNESS. OPERATIONS CHECKED GO
- [SDR J7SA20160519001](https://openairdocs.org/sdr/J7SA20160519001.md): Connector · loose · May 19, 2016 · N473FX · Lear 45LEAR · Engine Indicating System Wiring
  > EMERGENCY DECLARED DUE TO HIGH ITT ON THE NR 2 ENG DUE TO OVER TEMPERATURE. SIC RETARDED THROTTLES WHICH DID NOT REDUCE THE TEMPERATURE. NR 2 ENG WAS SHUT DOWN IN FLIGHT & CREW EXECUTED FIRE PROCEDURE CHECKLIST. ONE FIRE BOTTLE WAS DISCHARGED IN FLIGHT WHEN
- [SDR JGVR20150407001](https://openairdocs.org/sdr/JGVR20150407001.md): Gasket · blown · Apr 7, 2015 · N532GP · Gulstm G150 · Engine Bleed Air System
  > DURING ENGINE REMOVAL FOR MPI, FOUND THE NR 1 ENGINE HP BLEED AIR DUCT ASSEMBLY 90 DEGREE CONNECTION, PN SBJ10531-505, WITH A BLOWN GASKET, PN BA7684. SB 150-71-154 "POWERPLANT-ENGINE HIGH PRESSURE (HP) AIR DUCT ASSEMBLY SBJ10532-507. MISMATCH TO ADDRESS THI
- [SDR Y9PA20140605001](https://openairdocs.org/sdr/Y9PA20140605001.md): Lens · damaged · Jul 12, 2013 · N818W · Israel ASTRASPX · Exterior Lighting
  > INSTALLED LAMPS 4553 BULB & IT BURNED A HOLE IN THE LANDING LIGHT LENS.
- [SDR CA120213002](https://openairdocs.org/sdr/CA120213002.md): Pump · malfunctioned · Feb 10, 2012 · Lear 45LEAR · Engine Fuel Pump
  > (CAN) PILOTS REPORTED THAT THEY HAD THE LT & RT CHECK EDS, CAS MESSAGE COME ON DURING TAXI. MAINTENANCE DOWNLOADED BOTH ENGINE COMPUTERS AND FOUND THAT BOTH ENGINES LOGGED AN UNCOMMANDED SHUTDOWN AT DIFFERENT TIMES DURING THE TAXI. THE CREW DID NOT NOTICE AN

## 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 = 'TFE73140AR'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/alliedsign-tfe731-40ar/reports

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