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 USAAD99064Fuel Control · failedPIT-DFW - FLT 1588 - DURING CRUISE, THE CREW ATTEMPTED TO ADJUST THE LEFT ENGINE THRUST SETTING BUT THERE WAS NO RESPONSE TO THE THROTTLE LEVER MOVEMENT. THE ENGINE POWER STAYED ON 90 PERCENT N1. DURING APPROACH FOR LANDING AT THE DESTINATION THE LEFT ENGINESDR 99ZZZX2250Fcu · malfunctionedFCU HARD TO START, TOO MUCH FUEL. REMOVED AND SENT FOR REPAIR.SDR 99ZZZX2231Fuel Controller · failedFUEL CONTROLLER FAILED IN-FLIGHT AND DROPPED FUEL PRESSURE TO MIN-FLOW.SDR AT9900369Fuel Control · defectiveNR 1 ENGINE EPR FLUCTUATES, N1 AND FUEL FLOW FOLLOW. REMOVED AND REPLACED NR 1 ENGINE FUEL CONTROL IAW MM73-20-1. OPS CHECK AND LEAK CHECK GOOD.SDR PLGA990428Ecu · malfunctionedBOS - FLT 6307 - ON FIGHT 6307- PHL-BOS, THE CREW NOTED THE RIGHT ENGINE INCREASING IN POWER AFTER THE 64 DEGREE SWITCH. CREW WENT TO TORQUE MOTOR LOCKOUT AND CONTROL OF THE RIGHT ENGINE WAS REGAINED. AIRCRAFT LANDED WITHOUT INCIDENT IN BOS. MAINTENANCE REPSDR 99UAL900400Fuel Control · malfunctionedASYMMETRICAL THRUST PROBLEM. ENGINE NR 1 WOULD NOT PRODUCE THRUST ABOVE 51 PERCENT N1. ATC WAS NOTIFIED OF POSSIBLE PROBLEM AND FIRE AND RESCUE WAS REQUESTED TO BE ON STANDBY. *S/D* REPLACED THE MAIN ENGINE CONTROL. AIRCRAFT RETURNED TO SERVICE. NO FURTHSDR RAIA990440Eec · failedFLT 7326 - STL - LEFT TORQUE GAUGE STICKS AT 90 PERCENT. MAINTENANCE REPLACED LEFT EEC. (M)SDR TC8A99015Fuel Control · malfunctionedTRIP NR 03295 LATI-EINN, NR 1 ENGINE FLAMEOUT AT 22:05 Z, ON DESCENT. ENGINE FLAMEOUT CHECKLIST COMPLETED, 35 PERCENT N2, OIL PRESSURE 20 PSI AND 25 PERCENT N1. PROCEEDED IN FLIGHT START JT3D CHECKLIST, NO RESPONSE. REMOVED AND REPLACED FUEL CONTROL IAW MM SDR AU990545Circuit Board · faulty(AUS) NR 2 ENGINE ELECTRONIC CONTROL UNIT (ECU) CHANNEL SELECTOR PRINTED CIRCUIT BOARD FAULTY.SDR 99UAL900234Mec · malfunctionedNR 2 ENGINE SURGED. *S/D* ACCOMPLISHED MM TROUBLESHOOTING AND REPLACED MAIN ENGINE CONTROL UNIT (MEC). AIRCRAFT RETURNED TO SERVICE AND NO FURTHER DISCREPANCIES NOTED.SDR AU990552Sensor · faulty(AUS) RT ENGINE N1 HYDROMECHANICAL SENSORS (2OFF) FAULTY.SDR VTZA990037Fuel Control · failedFLT 7318 - CHO-IAD - DURING APPROACH, AIRCRAFT EXPERIENCED IN FLIGHT SHUTDOWN OF LEFT ENGINE. MAINTENANCE INSPECTED AND REMOVED AND REPLACED LEFT FUEL CONTROL FOR ADDITIONAL PRECAUTION, FUEL PUMP P/N 897400-7 AS ALSO REPLACED. AIRCRAFT WAS RELEASED FOR MAINTSDR R7MA0000613Fcu · failedNR 2 ENGINE IDLE AND TORQUE CHANGES IRREGULARLY. UPON REMOVAL, FOUND FUEL IN P2 LINE AT FCU.SDR CA990927030Fcu · failed(CAN) FCU SUSPECTED CAUSE FOR N2 OVERSPEED CONDITION.SDR HEEA061771Fcu · leakingFUEL CONTROL LEAKING OUT START DERICH SHAFT AND BYPASS COVER. PERFORMED PRELIMINARY INSPECTION. TEST START DERICH FUNCTION AND FOUND NO LEAKAGE FROM THE SHAFT. BENCH TEST AND FOUND NO LEAKAGE FROM BYPASS COVER OR START DERICH WHEN TESTED ON THE FLOW BENCH. SDR HEEA061683Fcu · failedFUEL CONTROL CHANGED TO COMPLY WITH CEB-A-73-3102. AIRCRAFT FLEW 6.5 HOURS AND THE AIRCRAFT EXPERIENCED A HANG START. THE AIRCRAFT WAS TROUBLESHOT AND THE FUEL CONTROL WAS CHANGED. COMPLIED WITH CEB-A-73-3102, NEW SPRING INSTALLED. UPGRADED UNIT.SDR CA990412003Fcu · failed(CAN) DURING CRUISE, THE NR 2 ENGINE BEGAN TO SURGE AND RUN ROUGH, THE T5 AND TORQUE BEGAN TO FLUCTUATE AND THE PILOT HAD NO CONTROL OF POWER. THE ENGINE WAS SHUT DOWN AND AN UNEVENTFUL LANDING WAS CARRIED OUT. POST-FLIGHT INSPECTION FOUND THE FUEL CONTROL USDR AALA990427Retainer · shearedDFW - FLT 1010 - DURING DESCENT, LT ENGINE ACCELERATED ABOVE RED LINE ON ALL PARAMETERS WITH THROTTLE AT IDLE. ENGINE WAS SHUT DOWN USING FIRE HANDLE AND WINDMILLED FOR APPROXIMATELY 10 MINUTES. A/C AIR INTERRUPTED AND LANDED DFW W/O FURTHER INCIDENT. LEFT SDR CA990330003Eec · malfunctioned(CAN) ON DESCENT, NR 1 ENGINE HAD AN UNCOMMANDED TORQUE ROLLBACK FROM 55 PERCENT TO 15 PERCENT. TEST OF HARNESS SHOWED SOME FAULTS, CONNECTORS CLEANED, NO HARNESS FAULTS FOUND. ENGINE ELECTRONIC CONTROL REPLACED.SDR CA990318034Bearing · failed(CAN) CREW REPORTED TORQUE FLUCTUATIONS, GROUND RUN CONFIRMED TORQUE FLUCTUATIONS ALONG WITH FUEL FLOW, PROPELLER SPEED AND ENGINE RPM FLUCTUATIONS. OIL PRESSURE AND TEMPERATURES WERE NORMAL. THE FCU WAS REMOVED TO INSPECT FCU DRIVE AND THE NG FLYWEIGHT BEARSDR MWEA99072Fuel Control · inoperativeSTL - FLT 302 - DURING CRUISE FLIGHT, THE RIGHT ENGINE PARAMETERS EPR N1 N2 WERE FLUCTUATING AND AIRCRAFT DIVERTED TO STL. MTC REMOVED AND REPLACED RIGHT ENGINE FUEL CONTROL. (X)SDR 99ZZZX1220Fcu · leakingFUEL COMING OUT OF P-2 SENSING LINE. FUEL SMELL IN COCKPIT HEATING SYSTEM.SDR 99ZZZX1955Fuel Control · malfunctionedRIGHT ENGINE TORQUE WOULD ONLY REACH 96 PERCENT AT FULL POWER. REPLACED RT ENGINE FUEL CONTROL UNIT.SDR PLGA990124DEcu · malfunctionedBOS - FLT 6408 - CREW REPORTED LEFT ENGINE OPERATION ERRATIC. AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE ECU. A/C RETURNED TO SERVICE. (M)SDR COMA9960034Fuel Control · malfunctionNR 1 ENGINE LAGS NR 2 DURING TAKEOFF. REPLACED THE LEFT ENGINE FUEL CONTROL.SDR SWAA990053Fuel Control · malfunctionedINFLIGHT NR 2 ENGINE FAILURE ON APPROACH INTO STL. NO FUEL FLOW INDICATION. NR 2 FUEL SHUTOFF VALVE C/B TRIPPED. COULD NOT RESET. REMOVED AND REPLACED FUEL CONTROL MODULE AND REPLACED DISCONNECT D5164. OPS CK NORMAL PER M/M.SDR 99ZZZX485Fuel Control · malfunctionedLEFT ENGINE COMPRESSOR STALLNG FROM ROTATION TO 2,000 FEET. REPLACED LEFT FUEL CONTROL UNIT. GROUND RUN, LEAK CHECKED, AND TEST FLEW AIRCRAFT, OPS CHECKED GOOD. NO RECOMMENDATIONS TO PREVENT RECURRENCE.SDR HALA9900004Fcu · malfunctionedHNL - FLT 102 - POWER SURGE RIGHT ENGINE AT MID RANGE EPR SETTINGS, CLIMB POWER. EPR VARIED PLUS/MINUS .05. N1 PLUS/MINUS 2 PERCENT. NOT EVIDENT AT TAKEOFF POWER OR AT IDLE, A/C RETURNED TO HNL WHERE AN UNEVENTFUL LANDING WAS MADE. (M)SDR 99UAL900011Fuel Control · iced upABORTED TAKEOFF AT 100 KNOTS DUE TO NR 1 ENGINE SLOW TO SPOOL UP AND LACK OF DESIRED EGT. *S/D* THE AIRCRAFT WAS MOVED TO A HANGER AND THE NR 1 AND 3 COLD SOAKED ENGINES WERE HEATED TO MELT FROZEN MOISTURE IN THE PS4 TRAP OF THE FUEL CONTROL. THE NR 2 ENGINSDR 99ZZZX456Fcu · out of adjustINVESTIGATED LEFT ENGINE CONTROL LINKAGE AND FOUND POWER CONTROL LEVER WOULD NOT RETARD WITH POWER CONTROL CABLE MOVEMENT. LUBRICATED PIVOT POINTS, CHECKED ADJUSTMENTS AND RIGGING, PERFORMED ENGINE RUN CHECKS, NO DEFECTS NOTED.SDR CA990311008Fcu · malfunctioned(CAN) DURING START OF THE NR 1 ENGINE, FLAMES WERE NOTICED FROM THE TAILPIPE, WITH THE EGT RISING TO AN OVERTEMP CONDITION. THE ENGINE START WAS ABORTED. POST ABORT, THE FUEL CONTROL UNIT WAS REPLACED, RIGGED AND TESTED SERVICEABLE. THE AIRCRAFT WAS RETURNESDR CA990311006Fcu · malfunctioned(CAN) DURING SURGE, NR 1 ENG SURGED WITH EGT INCREASE, EGT REDUCED, ALL ENG PARAMETERS NORMAL. APPROX 2 MINUTES, ENG AGAIN SURGED AND EGT RISE ENCOUNTERED, BUT POWER AND TEMPS COULD NOT BE REDUCED BY POWER LEVER. ENG WAS SHUT DOWN AND ACFT LANDED WITHOUT INSDR ARWA981221Fcu · failedPNX - FLT 515 - BLOCK TURNBACK, ON RIGHT RUNUP, NR 1 ENGINE DIDN'T ACCELERATE. ALL INDICATIONS REMAINED IN IDLE. INDICATION WITH SLIGHTLY FLUCTUATING EPR NEEDLE. FELT ENGINE VIBRATING AND HEARD 'KNOCKING' NOISE. IMMEDIATELY BROUGHT THROTTLE BACK TO IDLE ASDR ARWA981214Fcu · malfunctionedKDEN - FLT 2801 - NR 3 ENGINE HUNG START, FAILS TO ACCELERATE PAST IDLE RPM, ANTI-ICE ON OR OFF. REMOVED AND REPLACED NR 3 ENGINE FUEL CONTROL UNIT PER MM 73-20-00. PERFORMED ENGINE RUN UP IAW ARROW AIR DC-8 MM JC 6527. ALL PARAMETERS NORMAL.SDR 99ZZZX214Fcu · malfunctionedAIRCRAFT EXPERIENCED TORQUE SPLIT IN-FLIGHT. NR 2 ENGINE TORQUE LOW. RETURNED TO BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 2 ENGINE AUTOMATIC FUEL CONTROL UNIT. REF: P&W IPC, CHAPTER 72-00-10, FIGURE 1, ITEM 11.SDR TC8A98085Fuel Control · out of adjustNR 4 ENGINE WOULD NOT DEVELOPE TAKEOFF POWER, (1.87 EPR). REJECTED T/O AT 100 KTS. ADJUSTED NR 4 ENGINE FUEL CONTROL IAW DMM, CH 73-20-1. PERFORMED ENGINE RUN-UP TO T/O POWER, SYSTEM CHECKS GOOD DC8 ENGINE RUN UP MM IAW DMM 72-00.SDR ORJA98314Eec · malfunctionedIN SJC - AT 40-50 KNOTS ON TAKEOFF ROLL AUTO THROTTLES ON, ENGINES SPOOLING UP AT 1.35 EPR ON LEFT AND RIGHT. RIGHT ENGINE THEN STARTED TO SPOOL DOWN (ROLL BACK). TAKEOFF WAS DISCONTINUED. REMOVED AND REPLACED NR 2 ENGINE EEC IAW MM 73. PERFORMED OPERATIONSDR 98ZZZX4711Fcu · malfunctionedABOVE 30,000 FEET, ENGINE, S/N P-74282, WOULD BEGIN TO SURGE IN ALL ENGINE PARAMETERS. AS THE AIRCRAFT INCREASED ALTITUDE, THE SURGING WOULD BECOME MORE INTENSE. AT THIS POINT (APPROXIMATELY 39K), THE PILOT BROUGHT THE POWER LEVER TO IDLE AND THE ENGINE SHUTSDR TWAA9819801Fuel Control · malfunctionedTHE LEFT ENGINE WOULD NOT RESPOND TO THROTTLE MOVEMENT. THE LT ENGINE WAS SHUT DOWN AND FLIGHT RETURNED TO STL. REPLACED THE JFC, (P/N 743602-4), AND ENGINE FUEL PUMP, (P/N 378200). CHECK-C 3-22-98 STL.SDR AU981629Fcu · malfunctioned(AUS) DURING MAINTENANCE, THE NR 2 ENGINE POWER LEVER ANGLE WAS ADJUSTED AND AN EGR CARRIED OUT. ENGINE STARTED AND ACHIEVED IDLE. WHEN PART POWER CHECK CARRIED OUT NIL, ENGINE RESPONSE WHEN THROTTLE MOVED FROM PART POWER TO IDLE POSITION. THE MAIN ENGINE CSDR AU981567Fcu · malfunctioned(AUS) NR 2 ENGINE FUEL CONTROL UNIT FAULTY.SDR RAIA981117Iec · failedFLT 7779 - DCA - LEFT ENGINE TORQUE INDICATION FLUCTUATING, ALONG WITH RPM, EGT AND FUEL FLOW. MAINTENANCE REPLACED LEFT ENGINE IEC. (M)SDR RAIA981116Fuel Control · failedFLT 7746 - DCA - LEFT ENGINE INDICATIONS ERRATIC IE, EGT, RPM, FUEL FLOW, TORQUE. MAINTENANCE REPLACED LEFT ENGINE FUEL CONTROL. (M)SDR COMA9860361Fuel Control · malfunctionUNABLE TO REDUCE POWER BELOW 60 PERCENT N1. RIGHT HAND ENGINE (IFSD). REPLACED THE FUEL CONTROL.SDR SWIA971316Connector · dirtyLEFT ENGINE TORQUE SURGED AFTER TAKEOFF TO 108 PERCENT, 111 PERCCENT, 109 PERCENT AND 115 PERCENT. LEFT EEC REVERTED TO MANUAL. RESET LEFT EEC AND MAINTAINED ABOUT 40 PERCENT TORQUE ON LEFT ENGINE. RIGHT ENGINE NORMAL. RETURNED TO AIRPORT AND RAN ENGINE (LSDR VTZA98339Fcu · failedFLT 6190 - IAD-BDL - DURING TAKEOFF, EXPERIENCED A DISCREPANCY WITH THE RIGHT ENGINE ONLY REACHING 58 PERCENT TORQUE ON TAKEOFF ROLL. AIRCRAFT ABORTED TAKEOFF AND NOTIFIED MAINTENANCE CONTROL. THE AIRCRAFT RETURNED TO THE GATE WHERE MAINTENANCE TROUBLESHOT, SDR VJ9800593Fuel Control · failedON CLIMBOUT, LOST POWER ON NR 2 ENGINE. FLIGHT CREW SHUTDOWN ENGINE AND DIVERTED TO SAV. REPLACED DEFECTIVE FUEL CONTROL.SDR CA981207018Eec · malfunctioned(CAN) DURING FLIGHT, THE NR 3 ENGINE STARTED TO LOSE POWER. N1 FLUCTUATED FROM MINIMUM TO MAXIMUM. POST-FLIGHT, THE NR 3 ENGINE ELECTRONIC CONTROL UNIT WAS REPLACED AND THE ENGINE WAS GROUND RUN SERVICEABLE.SDR 99ZZZX797Fuel Control · failedRIGHT ENGINE FLAMED OUT IN CRUISE. AIRCRAFT LANDED. TROUBLESHOOTING DISCOVERED THAT FUEL CONTROL WAS BYPASSING 100 PERCENT OF FUEL BACK TO FUEL CONTROL. REPLACED FUEL CONTROL, ENGINE OPERATION RETURNED TO NORMAL. FCU SENT TO OVERHAUL SHOP FOR INSPECTION ANSDR RAIA981110Fuel Control · failedFLT 7426 - STL - RIGHT ENGINE TORQUE FLUCTUATING 3 PERCENT. MAINTENANCE REPLACED THE FUEL CONTROL ON RIGHT ENGINE. (M)
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