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 98ZZZX3248Computer · failedFUEL COMPUTER DROPS OFF-LINE WHEN THROTTLE IS ADVANCED ABOVE IDLE. THIS IS THE THIRD FAULTY FUEL COMPUTER RECEIVED IN THE PAST 3 WEEKS. ALL COMPUTERS RECEIVED SHOW NCFR ON TEST SHOOTS S8130-3. HOWEVER, THEY FAIL WHEN INSTALLED IN AIRCRAFT IN THE SAME MANNERSDR COMA9860124Control Unit · malfunctionedLEFT ENGINE DOES NOT RESPOND TO POWER LEVER MOVEMENT, ABORTED TAKEOFF AND RETURNED TO THE GATE. DEFERRED THE ELECTRONIC SPEED CONTROL SYSTEM. AIRCRAFT RETURNED TO SERVICE.SDR 98ZZZX2525Eec · failedEEC FAILED TO PASS OVERSPEED TEST. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR CA980602095Ecu · failed(CAN) ON SHORT FINAL APPROACH, FADEC FAIL WARNING LIGHT AND POWER LOSS. PILOT FORCED TO COMPLETE LANDING UNDER LOW POWER AND LOW ROTOR RPM RESULTING IN A HARD LANDING. ATTEMPTS TO DOWNLOAD FADEC ECU DATA TO MAINTENANCE TERMINAL UNSUCCESSFUL WITH NO ECU IS AVSDR NSVA0526Fuel Control · failedDURING CLIMBOUT, LEFT ENGINE TORQUE DROPPED TO 2200 AND FUEL FLOW DROPPED ACCORDINGLY TO 200 LBS BELOW RT SIDE.SDR AALA981025Fuel Control · failedLAX - FLT 7 - DURING FINAL APPROACH LAX AT 5,000 FEET, THROTTLES WERE RETARDED AND RIGHT ENGINE SHUT DOWN IN FLT. FLIGHT CREW ACCOMPLISHED ENGINE OUT PROCEDURES AND LANDED LAX WITHOUT FURTHER INCIDENT. REPLACED RIGHT ENGINE FUEL CONTROL UNIT AND AS A PRECAUTSDR VNAA9805014Ecu · failedDURING TAKEOFF, A LEFT HAND ECU FAIL WARNING MESSAGE OCCURED. THE AIRCRAFT ABORTED TAKEOFF, AND RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND ENGINE ELECTRONIC CONTROL UNIT, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 73-21-01. OPESDR 98ZZZX2497Eec · failedEEC WAS CONNECTED TO BENCH TEST EQUIPMENT TO ADJUST EFR SETTING. AFTER EEC WARM-UP PERIOD PRIOR TO ADJUSTING EFR, THE TECHNICIAN FOUND THE EEL WAS NOT FUNCTIONING. A REVIEW OF THE TEAR DOWN/REPAIR REPORT REVEALED THE EEC HAD BEEN REMOVED FROM SERVICE FOR THESDR 98ZZZX2002Eec · failedAFTER BENCH ADJUSTMENT OF EEC, EEC WAS INSTALLED IN ACFT. DURING START OF ENGINE, EEC TRIPPED TO MANUAL MODE AND UNABLE TO RESET. AFTER EXTENSIVE T/S, DETERMINED EEC WAS UNSERVICEABLE. A REVIEW OF TEAR DOWN/REPAIR REPORT REVEALED EEC REMOVED FROM SERVICE FOSDR MASA98098Eec · failedSTL/PHL - FLT 5764 - AFTER TAKEOFF, LEFT N1 GAUGE BEGAN FLUCTUATING MINUS 20 PERCENT, CLIMB THRUST AND ITT WENT TO MOMENTARY RED LINE. CREW DID NOT DECLARE AN EMERGENCY, BUT THE FIRE TRUCKS WERE DISPATCHED BY THE TOWER AS A PRECAUTIONARY MEASURE. THE AIRCRAFSDR RAIA980413Eec · failedPIA - FLT 7127 - LEFT ENGINE WOULD ONLY MAKE 30 PERCENT TORQUE ON TAKOEFF ROLL. MAINTENANCE REPLACED LEFT ENGINE ELECTRONIC CONTROL UNIT. (X)SDR 9807219869Fuel Control · malfunctionedDURING TAKEOFF ROLL AT 130 KNOTS, THE LEFT ENGINE EXPERIENCED COMPRESSOR STALLS. CREW COMPLETED TAKEOFF THEN RETURNED TO DTW AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE FUEL CONTROL UNIT. OPERATIONAL CHECK OK. AIRCRAFT RETURNEDSDR CA980506004Fcu · failed(CAN) DURING CLIMB THROUGH 9,000 FEET, THE ENGINE CEASED OPERATION WITHOUT WARNING, AS IF THE CONDITION LEVER HAD BEEN MOVED TO THE CUTOFF POSITION. AN ATTEMPTED RE-LITE WAS UNSUCCESSFUL. POST-FLIGHT INSPECTION FOUND THE P3 LINE FROM THE GAS GENERATOR TO THESDR 9806779763Fuel Control · malfunctionedDURING CLIMB TO MAINTAIN EQUAL POWER SETTINGS, THE POWER LEVERS WERE SPLIT WITH THE LEFT FORWARD OF THE RIGHT. CREW ELECTED TO RETURN TO DTW. MAINTENANCE REPLACED THE LEFT ENGINE FUEL CONTROL UNIT. ENGINE OPERATIONAL CHECK OK.SDR 9806552298Fuel Control · failedAS TAKEOFF POWER WAS APPLIED, THE CENTER ENGINE EPR INDICATION WOULD NOT REACH TARGET EPR SETTING. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE CENTER ENGINE FUEL CONTROL UNIT, OPERATIONAL CHECK OK.SDR 98FDEA00256Ecu · malfunctionedAT ROTATION, NR 2 ENGINE AND THROTTLE BEGAN TO ROLL BACK. NOTICED FLUX BUT ON PUSHING NR 2 THROTTLE BACK UP, ENGINE RETURNED TO NORMAL. REMOVED AND REPLACED NR 2 ENGINE ECU PER M/M 73-21-01-4. RAN NR 2 ENGINE PER JRH AND M/M 71-00-00-5. POWER ASSURANCE CHESDR 98ZZZX1641Fuel Control · defectiveBWI - FL 2197 - AFTER TAKEOFF AT 1,000 FEET, CAPTAIN THOUGHT HE HAD AN ENGINE FAILURE. THE NR 1 ENGINE FAILED TO RESPOND TO THRUST LEVER MOVEMENT. CAPTAIN SHUT DOWN THE NR 1 ENGINE AND RETURNED TO FIELD AT BWI WHERE THE FLIGHT LANDED WITHOUT INCIDENT. AN ESDR 98ZZZX1490Nozzle · fracturedFUEL CONTROL FAILURE. ENGINE SHUT DOWN IN-FLIGHT. SUSPECT CAUSE: PUMP NOZZLE IS FRACTURED CAUSING SEVERE CONTAMINATION.SDR 9805836603Fuel Control · failedDURING FINAL APPROACH AT 4000 MSL, THE NR 1 ENGINE FLAMED OUT. ONE RAPID RESTART WAS ATTEMPTED BUT WAS UNSUCCESSFUL. THE APPROACH AND LANDING WAS COMPLETED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE INLET AND EXHAUST WITH NO TROUBLE FOUND. THE FUEL CONTROSDR REXA98083Ecu · failedLEFT ENGINE TORQUE AND PROP RPM GAUGE FLUCTUATED 5 PERCENT AND THEN DROPPED TO ZERO FOR A SECOND, THEN BACK UP AND LEFT ENGINE THEN SHUT ITSELF DOWN. REMOVED AD REPLACED ECU. GROUND OPS, CHECKED GOOD. (M)SDR 98ZZZX1822Fuel Control · defectiveFUEL CONTROL OUT OF STOCK OVERHAUL. ENGINE WOULD NOT GO ABOVE 30 PERCENT OR 500 DEGREES CELSIUS. HANGS. REMOVED AND REPLACED.SDR DL72S980659Fuel Control · failedNR 3 ENG DID NOT RESPOND TO THROTTLE MOVEMENT DURING DESCENT, FLAMEOUT, FUEL FLOW WAS ZERO. EGT AND EPR WERE ZERO AND NOT RESPONDING. N1 AND N2 DISPLAYED WINDMILLING INDICATION, THIS LASTED FOR 2 TO 3 MINUTES. PRIOR TO COMMENCING THE ENG FAILURE FOLLOW UP CSDR HALA9800070Fuel Control · malfunctionedHNL - FLT 508 - DURING CLIMB-OUT AT TAKEOFF POWER 2.05 THE RIGHT ENGINE HAD A FLUCTUATION OF 2.01 TO 2.08 ON THE EPR. ALL OTHER ENGINE GAUGES SHOWED SAME FLUCTUATION ON THE RT ENGINE. REMOVED AND REPLACED NR 2 ENGINE FCU PER HAL 97.6. GROUND RUN CHECK OK. SDR CA970210003Fcu · bad valve(CAN) ENGINE FLAMED OUT DURING TAXI. FCU SENT FOR REPAIR. O/H SHOP FOUND METERING VALVE FAULTY AND UNIT NEEDED NEW SEALS. FCU CALIBRATED, NO OTHER FAULT.SDR SABA980019Fuel Control · failedSOP - FLT 5022 - ON FLIGHT FROM CLT TO ISO, THE RT ENGINE RPM DROPPED AND FUEL CAPTION LIGHT CAME ON. AIRCREW COULD NOT REGAIN POWER, SO THE ENGINE WAS SHUT DOWN. IN-FLIGHT EMERGENCY WAS DECLARED AND EMERGENCY PROCEDURES WERE USED. AIRCRAFT DIVERTED AND LANSDR CA980317091Fcu · malfunctioned(CAN) THE FUEL CONTROL WAS ON A FIELD EVALUATION FROM WOODWARD. THE PRESENT PROBLEM IS THAT ON START THE FUEL FLOW STARTS AT 50 PPH AND CONTINUES TO INCREASE TO 100 PPH PUTTING TOO MUCH FUEL INTO THE ENGINEON START THUS AN OVERTEMP ON START IS NOTED.SDR REXA98065Ecu · surgeRIGHT ENGINE HAD A ITT SURGE ON TAKEOFF. REMOVED AND REPLACED RIGHT ENGINE ECU. (M)SDR COMA9810063Eec · malfunctionedTORQUE INDICATION FLUCTUATED +- 20 PERCENT DURING TAKEOFF ROLL. DEFERRED THE ELECTRONIC ENGINE CONTROL SYSTEM.SDR REXA98063Ecu · malfunctionedRT ITT GAUGE DROPPED TO ZERO INFLIGHT. REMOVED AND REPLACED RT ECU. (M)SDR AALA980420Fuel Control · defectiveMIA - FLT 929 - WHILE PASSING THROUGH 2000 FT, NR 1 ENGINE FLAMED OUT WITH NO PRIOR ABNORMAL INDICATIONS. AIRCRAFT RETURNED TO MIAMI AND LANDED WITHOUT INCIDENT, NOT OVERWEIGHT. REPLACED FUEL PUMP AND FUEL CONTROL. LEAK CHECKED WITH NO LEAKS FOUND. GROUND SDR ANCF9802Governor · malfunctionedBOG/MEX - FLT 072 - LEFT EEC AND ENGINE LIMITER INOPERATIVE. LIGHT ILLUMINATED. EICAS MESSAGE. LT ENGINE EEC, LT ENGINE LIMITER DISPLAYED, REJECTED TAKEOFF. READING CODE FAULT EEC NR 31 FOUND AND PERFORMED PROCEDURE IAW THIS CODE, FFG CONNECTOR'S WERE CHECSDR 98ZZZX986Fuel Control · malfunctionedFUEL CONROL UNIT WENT FROM 63 PERCENT TO 80 PERCENT AT FLIGHT IDLE SETTING, UNCOMMANDED.SDR 98ZZZX922Bellows · defectiveFUEL CONTROL DEFECT. UNABLE TO GET MAXIMUM SPEED; FOUND DURING TESTING. GOVERNOR SETTING 75 RPM, LOW BELOW MINIMUM.SDR 98ZZZX921Fuel Control · malfunctionedHOT START ON FIRST START OF DAY ONLY. FOUND DURING A RECEIVED TEST. FIRST 2 TEST POINTS FOUND RICH CAUSED BY LEAKING START-DERICH BELLOWS. REPLACED BELLOWS AND RETESTED.SDR 9803166611Fuel Control · failedON TAKEOFF ROLL, THE NR 4 ENGINE WOULD NOT PRODUCE TAKEOFF EPR WITH THE THRUST LEVER AT THE MECHANICAL STOP. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE FUEL CONTROL AND THE FOLLOW-UP ENGINE RUN WAS NORMAL.SDR CA980318016Fuel Control · surges(CAN) FUEL CONTROL UNIT CAUSED 200 FT/LB SURGE WHEN POWER WAS REDUCED.SDR DLL10980366Fuel Control · failedT/O PWR SET ENG 1 FAILED TO ACCELERATE PROPERLY N3 LESS THAN 80 PERCENT EPR WOULD NOT GO ABOVE 1.18 {OTHERS SET AT 1.428} AND N2WAS LOWER {APPROX 80} THAN OTHER ENGINES. REJECTED TAKEOFF AT 60 KTS. ENGINE ANTI-ICE WAS ON. REPLACED NR 1 ENG FUEL CONTROL AND SDR COMA9810045Ecu · malfunctionedTHE RIGHT PROPELLER RPM FLUCTUATED BETWEEN 100 AND 102.5 PERCENT AFTER TAKEOFF. DEFERRED THE RIGHT ENGINE ELECTRONIC CONTROL SYSTEM. AIRCRAFT RETURNED TO SERVICE.SDR MALA975957Ecu · failedAFTER LANDING ROLLOUT, RIGHT ENGINE FLAMED OUT. TOWER REPORTED SMOKE FROM RIGHT ENGINE, AT THE SAME TIME THE RIGHT ENGINE OIL PRESSURE LIGHT ILLUMINATED. MAINTENANCE REPLACED THE RIGHT ECU, OPS CHECK GOOD.SDR CA980317075Fcu · failed(CAN) ENGINE HAD HUNG START AT 25% NG. MAX LIGHT OFF TEMP AFTER FCU ADJUSTMENT OF ONE FULL TURN. FCU HAS 0.0 HOURS SINCE OVERHAUL.SDR REXA98034Ecu · surgeRIGH ENGINE HAS A POWR SURGE OF 5 TO 8 PERCENT IN THE 40 PERCENT TORQUE RANGE WHILE PUSHING UP POWER. REMOVED AND REPLACED RIGHT ELECTRICAL CONTROL UNIT. GROUND RUN CHECKS GOOD. (M)SDR HEEA0012719Fuel Control · malfunctionFUEL CONTROL DEFECTIVE. FOUR REMOVALS FOR STARTING PROBLEMS. 1 EACH LIGHT OFF TEMP. TOO HIGH, COULD NOT ADJUST. 3 EACH REMOVALS FOR HANG STARTS AT 35% TO 40%, COULD NOT ADJUST. SENT TO ALLIED SIGNAL BENDIX WEST COAST FOR WARRANTY REPAIR.SDR AU980614Fcu · failed(AUS) NR 2 ENGINE ELECTRONIC FUEL CONTROL UNIT (EFU) FAULTY. WORKSHOP INVESTIGATION FOUND THE UNIT FAILED PRESSURE SUB-SYSTEM CHANNEL `A' TEST. PART TC: 21,089.SDR 9801262713Fuel Control · malfunctionedAS TAKEOFF POWER WAS APPLIED, THE RIGHT ENGINE WAS SLOW RESPONDING TO THROTTLE SETTING. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE RIGHT ENGINE FUEL CONTROL ASSEMBLY. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.SDR AU980059Sensor · faulty(AUS) RH ENGINE T1-8 SENSOR PROBE FAULTY.SDR AU980028Connector · faulty(AUS) NO2 ENGINE ELECTRONIC ENGINE CONTROL (EEC) CONNECTOR FAULTY. HIGH RESISTANCE BETWEEN PINS R AND Q ON P1.SDR CA980317085Fcu · out of adj(CAN) FCU RECEIVED WITH PAPERWORK TO INDICATE THE MAXIMIUM FLOW WAS SET TO 235 PPH AS PER INSTRUCTIONS. THE MAXIMUM FUEL FLOW SCREW WAS APPROX 1/16 DOWN FROM MAX MARK. CLOSER TO MAX MARK THEN MIN.SDR CA980317079Fcu · failed(CAN) ENGINE FLAMED OUT DURING START AT 55% NG AND AT 35-40% NG ON SUBSEQUENT ATTEMPT. FUEL CONTROL UNIT REPLACED.SDR TWRA9802Fuel Control · malfunctionedWHILE CRUISING AT F/L 330, SMOOTH AIR, NR 3 ENGINE FLAMED OUT, FUEL PANEL SETTING WAS TANK TO ENGINE. USED TOWER AIR PROCEDURES FOR INFLIGHT START ENGINE RESTARTED. ALL PARAMETERS NORMAL. PERFORMED NR 3 ENGINE FLAMEOUT TROUBLESHOOTING PROCEDURES IAW MM 71-0SDR UPS98525378Elect Eng Cntrl · failedINSPECTION TYPE-N/A ON SHORT FINAL, RT ENG FAILED. EPR REMAINED AT 1.0. N1 AND N2 WERE FROZEN, EGT 450C, AT ALL THRUST LEVER SETTINGS. ENG WAS NOT SHUT DOWN. ENG WENT TO FAIL-SAFE FLT IDLE POSITON. ENG RUN ON PRI AND SEC CHANNEL IN LGB WAS NORMAL. EEC WA
Back to JASC 7321