JASC 7321
Service difficulty reports · 2,879
Reports filed under 7321 · Fuel Control/Turbine Engines, newest first.
Query with SQL
duckdb -csv -c "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 jasc_code = '7321' ORDER BY difficulty_date DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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 jasc_code = '7321' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR VTZA97128Fuel Control · out of adjustIAD-DAY - FLT 6292 - DURING LANDING, MADE A SCHEDULED LANDING WITH ONE DISCREPANCY WHICH WAS RT ENGIEN FLAMED OUT AFTER LANDING WHEN POWER LEVERS RETARDED. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED DECEL ON FUEL CONTRSDR 9702089936Fuel Control · malfunctionedDURING TAKEOFF ROLL AT 75 KNOTS, THE LEFT ENGINE EPR, FUEL FLOW, AND N1 INDICAITONS BEGAN FLUCTUATING. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE LEFT ENGINE FUEL CONTROL. RAN ENGINE TO TAKEOFF POWER AND ALL PARAMETERS WERE NORMSDR 97ZZZX954Fuel Control · stuckDURING AUTOROTATION FLIGHT TRAINING, INSTRUCTER ROLLED THROTTLE TO IDLE. N1 WENT PAST 60 PERCENT N1 IDLE SPEED TO 52 PERCENT. FOUND PR/PG SHAFT NOT WORKING. SHAFT WOULD NOT FOLLOW CAM ON SHAFT TO ALLOW PR/PG VALVE TO OPEN OR PREVENT UNDERSHOOTING IDLE. RPMSDR VTZA97121Fuel Control · failedFLT 6418 - IAD-BOS - ABORTED TAKEOFF DUE TO LEFT ENGINE WOULD NOT MAKE TORQUE ON TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED FUEL CONTROL, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED SDR RAIA980129Fuel Control · failedALO - FLT 7469 - NR 2 ENGINE WOULD NOT PRODUCE TARGET TORQUE. REMOVED AND REPLACED FUEL CONTROL. (M)SDR CA970110002Pt Sensor · faulty(CAN) DURING TAKEOFF THE #2 ENGINE RPM BEGAN TO OSCILLATE. THE ENGINE COMPUTER WAS SELECTED TO THE OFF POSITION. THE ENGINE RPM STABILIZED BUT WOULD NOT MAKE POWER, APPROXIMATELY 80 PERCENT N1. THE AIRCRAFT RETURNED TO BASE AND LANDED WITHOUT INCIDENT. TROUBLESDR SWIA97823Warning Light · illuminatedON TAKEOFF ROLL, LEFT EEC FAILURE WARNING ILLUMINATED AND AURAL WARNING SOUNDED. WITH CONDITION LEVERS IN MININUM, LEFT RPM WAS 90 PERCENT UNTIL THE EEC WAS TURNED OFF, THEN LEFT RPM WAS NORMAL. ABORTED TAKEOFF. MEL 23-21-1. TROUBLESHOT SYSTEM. OHMED WIRESDR REXA97002Fuel Control · out of adjustLEFT ENGINE PROP PITCH AND TORQUE HUNG AT 80 PERCENT. CREW UNABLE TO RETARD POWER IN FLIGHT. ADJUSTED AND TIGHTENED SCREW 'X', GROUND RUNS OPS CHECK GOOD. (M)SDR COMA9710018Eec · malfunctionedRT ENGINE SURGING DURING TAKEOFF. TORQUE AND NP FLUCTUATING 10 TO 20 PERCENT. DEACTIVATED AND DEFERRED THE ENGINE ELECTRONIC CONTROL SYSTEM.SDR SWIA97820Eec · malfunctionedRIGHT TORQUE WENT TO 137 PERCENT ON TAKEOFF WITH THE EEC ON. TURNED OFF EEC AND EVERYTHING WENT BACK TO NORMAL. RETURNED TO SGU. MEL THE EEC 73-21-1. COMPLIED WITH OVER TORQUE INSPECTION PROCEDURES PER PWC MM 05-50-00. RIGHT EEC IS STILL DEFERRED.SDR DLM88962765Fuel Control · malfunctionedAFTER ATTAINING T/O PWR, NR 1 ENGINE ROLLED BACK, PRESSURIZATION WAS LOST. NR 1 ENGINE DID COME BACK WITH NORMAL OPS DURING CLIMB. MX IN PROGRESS REPLACING FUEL PUMP AND FUEL CONTROL.SDR 97ZZZX268Jump Rate Assy · disbondedTWO FUEL CONTROLS WERE RECENTLY REJECTED DURING THE BOEING FLIGHT TEST DUE TO A REPORTED PROBLEM OF FLAMEOUT DURING TAXI. SUBSEQUENT INVESTIGATION AT WOODWARD REVEALED A DISBONDED JUMP AND RATE ORIFICE. THE ABSENCE OF A RATE ORIFICE RESULTS IN A MUCH MORE RASDR 97ZZZX267Jump Rate Assy · disbondedTWO FUEL CONTROLS WERE RECENTLY REJECTED DURING THE BOEING FLIGHT TEST DUE TO A REPORTED PROBLEM OF FLAMEOUT DURING TAXI. SUBSEQUENT INVESTIGATION AT WOODWARD REVEALED A DISBONDED JUMP AND RATE ORIFICE. THE ABSENCE OF A RATE ORIFICE RESULTS IN A MUCH MORE RASDR RRXA96174Fcu · frozenABORTED TAKEOFF DUE TO POWER LOSS ON NR 4 ENGINE. THE ENGINE DID NOT FLAME OUT. CORRECTIVE ACTION: MAINTENANCE FOUND FCU FROZEN DUE TO TEMPERATURE. PERFORMED HIGH POWER RUN REF. DC8 RUN UP HAND BOOK, ALL OPS CHECK GOOD, ALL PERAMATERS WERE NORMAL.SDR VTZA96453Fuel Control · failedFLT 6261 - IAD-EWR - ABORTED TAKEOFF DUE TO LEFT ENGINE WOULD ONLY MAKE 85 PERCENT TORQUE ON TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE REMOVED AND REPLACED FCU, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN SDR CA970528021Bypass Valve · stuck(CAN) UNABLE TO ADJUST START CYCLE COMPRESSOR STALLING AND FAST EXCELLERATION OF N1 RPM NOTED AT 20 PER N1 FUEL PRESSURE WAS NOTED AS HIGH AS +30 PSI. POSSIBLE BYPASS VALVE STUCK OPEN. REPLACED.SDR CA970528020Fuel Control · loose(CAN) GROUND IDLE RPM DROPPED TO 57 PERCENT N1 IDLE SPEED. ADJUSTMENT SCREW FOUND TO BE EASY TO ROTATE BY HAND. NO BUILT IN FRICTION FELT. REASON FOR LAST REMOVAL. REPLACED.SDR HEEA968709Fuel Control · leakingFUEL CONTROL REMOVED DUE TO LEAKING AROUND RETAINING PLATE AREA. NO PROBLEM WITH RFSE 250-93-3 MEDLIN BEARINGS. REPLACED WITH AN OVERHAULED FUEL CONTROL.SDR TC8A96070Fuel Control · malfunctionedNR 2 ENGINE COMPRESSOR STALLED AT HIGH ENGINE RPMS, HIGH FUEL FLOW NOTED. REMOVED AND REPLACED FUEL CONTROL, RAN ENGINE, TRIMMED IDLE AND PART POWER, OPS CHECKS GOOD IAW PWA 73-2-2. TRIM RUN IAW DAC MM 71-0, ALL PARAMETERS.SDR VTZA96432Fuel Control · out of adjustFLT 6426 - IAD-DTW - DURING LANDING, EXPERIENCED A NR 1 AND NR 2 RED BETA LIGHT DURING LANDING FLARE AT IAD. UPON FINAL ARRIVAL AT IAD, MX TECHNICIANS TROUBLESHOT THE DISCREPANCY AND FOUND THAT THE LT AND RT ENGINE FLIGHT IDLE FUEL FLOW SYSTEM OF THE FUEL CONSDR COMA9660219Eec · malfunctionedLEFT ENGINE WOULD NOT ACCELERATE ABOVE 52 DEGREES WITH THE SPEED SWITCHES ON. TRANSFERRED THE ELECTRONIC ENGINE CONTROL SYSTEM TO DEFERRED MAINTENANCE LIST. AIRCRAFT CONTINUED SERVICE.SDR AWXA9600720Eec · malfunctionedGOING THROUGH ABOUT 12,000 FEET AT ABOUT 280 KTS AND ACCELERATING, ECAM MESSAGE OF THRUST REVERSER NR 2 UNLOCKED CAME UP. ENGINE WAS SHUT DOWN AND AIRCRAFT RETURNED TO PHX. REMOVED AND REPLACED NR 2 EEC. CYCLED THRUST REVERSER WITH ENGINE RUNNING SEVERAL TISDR SABA9600022Fuel Control · failedSHD - FLT 5116 - LOST POWER LEVER CONTROL ON LEFT ENGINE. SHUT DOWN ENGINE, DECLARED AN EMERGENCY, MADE AN UNEVENTFUL LANDING IN SHD. MAINTENANCE PERSONNEL PERFORMED GROUND RUN AND VERIFIED CONTROL PROBLEM. FUEL CONTROL UNIT WAS REMOVED AND REPLACED AND AIRSDR 97ZZZX1354Fuel Control · leakFUEL CONTROL LEAK UNDER PX PY CAP.SDR COMA9610333Eec · out of adjustON INITIAL CLIMBOUT, THE NR 1 ENGINE TORQUE FLUCTUATED FROM 92 PERCENT TO 100 PERCENT. WHEN POWER WAS REDUCED THE FLUCTUATION WAS FROM 72 PERCENT TO 90 PERCENT, OPERATION BECAME NORMAL SHORTLY. TRANSFERRED TO DEFERRED LIST CAT C, MEL 73-21-1, EXPIRES 11-29-9SDR 96ZZZX6181Fuel Control · failedFLT PT 301 DEPARTED MIAMI, FL FOR CUARAZAO (CUR) ON THIS DATE. TAKEOFF WAS NORMAL UP TO THE TIME OF THE FIRST POWER REDUCTION. POWER REDUCTION WAS NORMAL FOR NR 2 AND NR 3 ENGINES; BUT, NR 1 ENGINE REMAINED AT HI POWER WITH NO RESPONSE TO THROTTLE MOVEMENT. SDR CA961120005Amplifier · faulty(CAN) TAKEOFF REJECTED DUE TO LOW EPR ON #3 ENGINE. THE FUEL CONTROL AMPLIFIER SWITCH OVERRODE TO RESTORE POWER. THE FUEL CONTROL AMPLIFIER WAS REPLACED WHEN THE AIRCRAFT RETURNED TO BASE.SDR COMA9630160Fuel Control · leakingSTRONG FUEL SMELL IN AIRCRAFT AFTER TAKEOFF. REPLACED THE RT ENGINE FUEL CONTROL UNIT. PART TOTAL CYCLES, 23,980.SDR 96UAL900863Eec · failedABORTED TAKEOFF AT 80 KNOTS DUE TO RIGHT ENGINE OVER TEMP CONDITION. *S/D* A FAULTY ELECTRONIC ENGINE CONTROL UNIT HAD JUST BEEN INSTALLED ON THE RIGHT ENGINE BEFORE THE OVER TEMP DISCREPANCY OCCURRED. THE EEC WAS REPLACED, OPERATIONS CHECK NORMAL.SDR VTZA97052Fuel Contl Unit · failureFLT 6516 - RIC-EWR - ABORTED TAKEOFF DUE TO RIGHT RPM 85 PERCENT, RIGHT RED BETA LIGHT ILLUMINATED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE REMOVED AND REPLACED FUEL CONTROL UNIT, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR SDR 96UAL900795Fuel Contl Unit · malfunctionedNR 1 ENGINE NOISY AND VIBRATION ON TAKEOFF. *S/D* LOW FREQUENCY VIBRATION CAUSED THE NOISE AND VIBRATION. THE FUEL CONTROL UNIT WAS REPLACED AND THERE HAS BEEN NO COMMENTS ON VIBRATIONS SINCE.SDR 9622909606Fuel Control · out of adjustWHEN APPLYING POWER FOR TAKEOFF, THE RIGHT ENGINE WOULD NOT REACH TAKEOFF POWER. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE TRIMMED THE RIGHT ENGINE, LEAK AND OPERATIONAL CHECK OK.SDR C2XA96CL035Eec · failedCLE - FLT 3003 - CREW REPORTED THAT AT 17,500 FEET THEY COULD NOT GET MORE THAN 4 PERCENT TORQUE AND 700 DEGREES EGT WITH POWER LEVER FULL FORWARD. AIRCRAFT RETURNED TO FIELD. MAINTENANCE INSPECTED AIRCRAFT AND REMOVED AND REPLACED THE NR 1 ENGINE ELECTRONICSDR REXA96058Fuel Control · inopLEFT ENGINE WON'T MAKE TARGET TORQUE. REMOVED AND REPLACED LEFT FUEL CONTROL UNIT IAW GARRETT MM. OPS CHECK GOOD. OK FOR SERVICE. (M)SDR 96ZZZM1546Fuel Contl · malfunctionDURING CRUISE, AT FL 390, NR 2 ENGINE EMITTED A LOW BOOMING NOISE FOLLOWED BY A RUMBLE AND VIBRATION. DECREASE IN EPR, N1, N2, EGT TO 300 DEGREES CELSIUS AND FUEL FLOW ZERO. ACCOMPLISHED ENGINE SHUT DOWN PER CHECKLIST. ATTEMPTED TWO RESTARTS, BOTH UNSUCCESSSDR USAASB96214Fuel Control · malfunctionedEVV - FL 777 - FLIGHT WAS CRUISING AT FL 310 WHEN THE NR 2 ENGINE CAME BACK TO 50 PERCENT POWER OR 2,000 LBS FUEL FLOW. CREW TURNED ON ENGINE HEAT WITH NO EFFECTS ON ENGINE. CREW TURNED ON FUEL HEAT, NR 2 ENGINE WENT PAST NORMAL N1 AND N2 INDICATIONS. CREW SDR RAIA961017Fuel Control · failedPAH - FLT 7365 - NR 2 ENGINE TORQUE FLUCTUATES. REMOVED AND REPLACED FUEL CONTROL. (M)SDR 96ZZZM1481Fuel Control · malfunctionedPIT - DURING CLIMB, NR 1 ENGINE, S/N 2106, WOULD NOT RESPOND TO THRUST LEVER MOVEMENT. SHUT DOWN ENGINE. REPLACED ENGINE DRIVEN FUEL PUMP, MFG P/N 378201-7 AND FUEL CONTROL, MFG P/N 743602-5. ENGINE OPERATION CHECKED NORMAL.SDR 9621019983Fuel Control · failedDURING CLIMB, THE LEFT ENGINE EPR AND FUEL FLOW INDICATIONS BEGAN FLUCTUATING. CREW RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE FUEL CONTROL AND TRIMMED ENGINE, LEAK AND OPERATIONAL CHECK OK.SDR USAABB96038Fuel Control · failedSFO - FL 74 - ON CLIMB FROM SFO, LEFT ENGINE WOULD NOT DEVELOP CLIMB POWER WITHOUT EXCEEDING EGT LIMITS. FUEL FLOW WAS MUCH HIGHER ON THE LEFT ENGINE. FLIGHT RETURNED TO SFO AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE EEC LIMITSDR 96ZZZX5609Fcu · failedFCU CAUSED DELAYED LIGHT-OFF WHEN AT AMBIENT TEMP. UNITS REPLACED, STARTS NORMAL.SDR PCAA9600315Elect Eng Contl · malfunctionedNR 1 TORQUE GAUGE WENT FROM 92 PERCENT TO ZERO. POWER UPTRIM WAS CYCLING ON AND OFF. REMOVED AND REPLACED NR 1 ECU, TSCU, AND TORQUE PROBE. GROUND RUN AND TEST FLIGHT PROVED SATISFACTORY. A/C RETURNED TO SERVICE. REFERENCE: OPERATOR CONTROL NR. 96ZZZX592SDR VTZA96359Fuel Control · failedFLT NR 6402 - BOS-IAD - ABORTED TAKEOFF DUE TO NR 2 ENGINE SHUTDOWN ON TAKEOFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REMOVED AND REPLACED FUEL CONTROL UNIT. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE.SDR 96UAL900684Pma · failedAT CRUISE, NR 4 ENGINE LOST THRUST AND FLAMED OUT. JUST PRIOR TO FLAME-OUT, RECEIVED EEC MODE EICAS MESSAGE. PERMANENT MAGNET ALTERNATOR (PMA) FAILED IN BOTH CHANNELS. REPLACED PMA.SDR BDHA9600022Fuel Control · malfunctionedMSP - FLT 434 - THE LEFT ENGINE WAS FUEL LIMITED ON TAKEOFF. THE MAX POWER WAS TURNED UP AND A RUN PERFORMED. THE ENGINE WAS VERY ERRATIC. INSPECTION OF THE FUEL CONTROL FOUND THE MANUAL FUEL VALVE WAS BINDING INSIDE. THE FUEL CONTROL WAS CHANGED AND ENGINSDR WTAA960171Fuel Cntrl Unit · out of adjustSEA - RIGHT ENGINE FAILED TO DEVELOP REQUIRED TAKEOFF POWER. TAKEOFF ABORTED WITHOUT INCIDENT. MAINTENANCE ADJUSTED ENGINE RIGGING. CHECKS GOOD ON ENGINE GROUND RUN. AIRCRAFT RETURNED TO SERVICE. (X)SDR WTAA960169Fuel Cntrl Unit · malfunctionedSEA - RIGHT ENGINE FAILED TO DEVELOP REQUIRED TAKEOFF POWER. TAKEOFF ABORTED WITHOUT INCIDENT. MAINTENANCE ACCOMPLISHED ENGINE GROUND RUN. FOUND ENGINE PRODUCING ADEQUATE POWER FOR REDUCED POWER TAKEOFF. AIRCRAFT FERRIED TO EUG FOR REPAIRS USING REDUCED POSDR DL757961925Fuel Control · failedON ENGINE START LEFT ENGINE FIRE WAS NOTED. FIRE HANDLE PULLED AND AGENT NOT DISCHARGED. REPLACED LEFT ENGINE FUEL CONTROL UNIT, LEAK CKS GOOD AND PERFORMED PFHB TEST 15. LEFT ENGINE FUEL CONTROL CKS NORMAL. ALL LT ENG PARAMETERS NORMAL.SDR 96UAL900632Wire · wornDURING CLIMB-OUT FROM PHL, RECEIVED EICAS MESSAGE ON LEFT ENGINE PRIMARY CONTROL, ACCOMPANIED BY LENGTHY SECONDARY CONTROL MESSAGE. FLIGHT DIVERTED TO ORD. CONNECTOR W2P7 ON FUEL CONTROL HAD LOOSE BACKSHELL. WIRES WERE TWISTED IN BUNDLE INSIDE BACKSHELL. OSDR USAASB96157Fuel Control · failedBWI - FLT 426 - ON CLIMB-OUT FROM DCA, THE NR 2 ENGINE BEGAN UNCOMMANED MOVEMENTS OF 1.5 TO 2 INCHES. WITH AUTOTHROTTLE ON, N1, N2, EGT, AND FUEL FLOW ALL FLUCTUATED. AUTOTHROTTLE DISCONNECTED AND STILL HAD FLUCTUATIONS. CAPTAIN DECIDED TO DIVERT TO BWI WHE
Back to JASC 7321