JASC 7712

Service difficulty reports · 1,239

Reports filed under 7712 · Engine BMEP/Torque Indicating, 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 = '7712'
  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.

SDR VTZA97519Connector · moisture contamFLT 6379 - IAD-SYR - DURING TAKEOFF, AIRCRAFT ABORTED TAKEOFF DUE TO RT ENGINE ONLY MADE 80 PERCENT TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 52127, MEL 76-2 ON TTL. MAINTENANCE CLOSED DMI 52127 ON 9-29Sep 28, 1997 · N473UE · Bag JETSTM3101SDR 97ZZZX5047Pressure Xducer · failedTORQUE STARTED FLUCTUATING THEN TOTAL FAILURE. REMOVED AND REPLACED.Sep 26, 1997 · N117NG · Bolkms BK117A4SDR VTZA97549Tq Signal Cond · out of adjustFLT 6379 - IAD-SYR - ABORTED TAKEOFF DUE TO LEFT ENGINE WOULD NOT MAKE TAKEOFF TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED LEFT TORQUE SIGNAL CONDITIONER AND GROUND RAN AIRCRAFT, OPS CHECK OK. AIRCRAFT WAS Sep 17, 1997 · N487UE · Bag JETSTM3201SDR VTZA97552Indication · malfunctionedFLT 6480 - GSO-IAD - DURING TAKEOFF, AT 1000 HOURS ABORTED TAKEOFF DUE TO RT ENGINE TORQUE DROPPED BY 20 PERCENT. AIRCRAFT RETURNED TO GATE WITH FURTHER PROBLEMS. MAINTENANCE INSPECTED AND GROUND RAN AIRCRAFT AND OPENED DMI 07027, MEL 76-2 ON TTL. MAINTENANSep 16, 1997 · N488UE · Bag JETSTM3201SDR SABA970031Torque Gauge · failedCLT - FLT 5226 - RIGHT ENGINE TORQUE FLUCTUATED. REMOVED AND REPLACED TORQUE GAUGE. NO EMERGENCY DECLARED. (X)Sep 14, 1997 · N170PC · Bag JETSTM3101SDR REXA97245Tq Signal Cond · malfunctionedRIGHT ENGINE TORQUE FLUCTUATES UP TO 10 PERCENT IN FLIGHT. REMOVED AND REPLACED RIGHT ENGINE TORQUE SIGNAL CONDITIONER. GROUND POWER RUN CHECKS GOOD. (M)Sep 6, 1997 · N311PX · Bag JETSTM3101SDR WTAA970176Ttl System · out of adjustSTS - RIGHT ENGINE TORQUE DROPPED 40 PERCENT ON TAKEOFF. TAKEOFF ABORTED WITHOUT INCIDENT. DEFERRED SRL PER MEL 76-1 AND TTL PER MEL 76-2. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEARED DEFFERALS BY ADJUSTING RIGHT TTL COMPUTER TRIGGER POINSep 5, 1997 · N107XV · Bag JETSTM3101SDR QXEA9700549Tq Signal Cond · malfunctionBOI - AUTO FEATHER WOULD NOT ARM. REPLACED NR 1 AND NR 2 TSCU'S AND RELAY 6121K5, OPERATIONAL CHECK GOOD.Sep 5, 1997 · N841PH · Dhav DHC8102SDR REXA97241Ctot Panel · malfunctionedON TAKEOFF LEFT TORQUE INDICATION WOULD NOT SET AND ERRATIC INDICATIONS THEREAFTER. REMOVED AND REPLACED CTOT PANEL. PERFORMED FUNCTIONAL CHECK OF CTOT, NO FURTHER DEFECTS NOTED. (M)Sep 2, 1997 · N340PX · Saab SF340ASDR WTAA970171Tq Indication · droppedVIS - LEFT ENGINE TORQUE DROPPED TO 80 PERCENT ON TAKEOFF ROLL. TAKEOFF ABORTED. MAINTENANCE DEFERRED LEFT SRL SYSTEM PER MEL 76-1. AIRCRAFT RETURNED TO SERVICE. NOTE, MAINTENANCE WAS SUBSEQUENTLY UNABLE TO DUPLICATE REPORTED DISCREPANCY DURING RON MAINTENAug 29, 1997 · N401UE · Bag JETSTM3101SDR REXA97244Tq Signal Cond · out of adjustRIGHT ENGINE WAS NOT MAKING TORQUE. SWAPPED TQ SIGNAL CONDITIONER TO BRIDGE NR 1 AND CALIBRATED USING CURRENT DSC VALVES. A/C OK FOR SERVICE. (M)Aug 28, 1997 · N302PX · Bag JETSTM3101SDR C2XA97CL070Tq Indicator · inoperativeCLE - FLT 3030 - CREW REPORTED THAT DURING TAXI-OUT, THE LEFT HAND ENGINE TORQUE INDICATOR READ ZERO. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE AIRCRAFT, THEN REMOVED AND REPLACED THE LEFT HAND ENGINE TORQUE INDICATOR IAW B1900 MM 31-10-00. OAug 27, 1997 · N16540 · Beech 1900DSDR VTZA97482Ttl · malfunctionedFLT 6193 - IAD-JFK - ABORTED TAKEOFF DUE TO LEFT ENGINE TORQUE ROLLED BACK TO 80 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 41598, MEL 76-1 ON TTL. MAINTENANCE CLOSED DMI 41598 ON 8-26-97 BY DOING OPS CAug 25, 1997 · N480UE · Bag JETSTM3201SDR VTZA97479Ttl · failedFLT 6419 - BOS-JFK - ABORTED DUE TO LEFT ENGINE TORQUE AND EGT FLUCTUATION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPEN DMI 57115, MEL 76-1. MAINTENANCE CLOSED DMI 57115 ON 8-23-97 BY REMOVING AND REPLACING LT TTL, OPSAug 22, 1997 · N470UE · Bag JETSTM3201SDR 98ZZZX1154Shaft · groovedTORQUE METER SHAFT UNIT EXCESSIVELY GROOVED. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 22, 1997 · N586BH · Bolkms BK117A4SDR HEEA0010827Transducer · malfunctionAT HIGH POWER SETTINGS, ENGINE HAD SLIGHT TORQUE OSCILLATION, FADEC DEGRADE LIGHT ILLUMINATED DURING ENGINE START ON S/N 1090-111 AND REMAINED ON.Aug 21, 1997 · N407PH · Bell 407SDR HEEA0010819Torquemeter · sticksTORQUEMETER NEEDLE STICKS THROUGHOUT SCALE. TIME SINCE REPAIR :15.Aug 21, 1997 · N8591X · Bell 206L3SDR 98ZZZX1412Transmitter · fluctuationsPILOT REPORTED TORQUE INDICATOR FLUCTUATIONS 1.0 PSI TO 2.0 PSI. RMEOVED S/N 4755-4-260. TOTAL TIME 912.0 HOURS.Aug 20, 1997 · N313KA · Kaman K1200SDR HEEA0010747Torquemeter · fluctuatesTORQUE FLUCTUATES, SYMPATHETIC TO MAIN ROTOR VIBRATION.Aug 19, 1997 · N4180F · Bell 206L3SDR COMA9710349Torque Sensor · inoperativeLEFT ENGINE TORQUE GAUGE READS ZERO. REMOVED AND REPLACED LEFT ENGINE TORQUE SENSOR WITH SERVICEABLE UNIT.Aug 15, 1997 · N246CA · Emb EMB120RTSDR 97ZZZM886Torque Gauge · failedLEFT ENGINE TORQUE GAUGE INOPERATIVE.Aug 14, 1997 · N835CA · Beech 1900DSDR RAIA970812Tq Indicator · failedFLT 4798 - SAN - LEFT ENGINE MADE 91 PERCENT TORQUE. TARGET TORQUE WAS 98 PERCENT. MAINTENANCE REPLACED LEFT TORQUE INDICATOR. (M)Aug 12, 1997 · N860AE · Bag JETSTM3201SDR VTZA97448Wiring Harness · failureIAD/MHT - FLT 6388 - DURING CLIMB AT 0750 HOURS ON 8-8-97, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO RT ENGINE TORQUE FLUCTUATION OF 5 PERCENT TO 8 PERCENT WITH ASSOCIATED AIRCRAFT YAW. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECAug 8, 1997 · N302UE · Jetair JETSTM4101SDR PLGA970808CTorque Indicator · malfunctionedBOS - FLT 4239 - DURING TAKEOFF, THE RIGHT TORQUE INDICATOR WAS READING 7 PERCENT HIGHER CTOT. TAKEOFF WAS ABORTED. MAINTENANCE REPLACED RIGHT TORQUE INDICATOR. SYSTEM CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (X)Aug 8, 1997 · N350BE · Saab 340BSDR HEEA0010616Indicator · reads high#2 NEEDLE INDICATES HIGH ON LOW END; CANNOT CALIBRATE.Aug 7, 1997SDR HEEA0010609Transmitter · defectiveTORQUE READING LOW. COULD NOT ADJUST. SENT TO OTTO'S INSTRUMENT SERVICE, INC. FOR INSPECTION AND REPAIR.Aug 7, 1997 · N22608 · Bell 412SDR VTZA97436Tq Signal Cond · failedIAD/GSO - FLT 6414 - DURING TAKEOFF AT 1605 HOURS ON 8-4-97, AIRCRAFT ABORTED TAKEOFF DUE TO RT TORQUE GAUGE FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSEPCTED AND REMOVED AND REPLACED TORQUE SIGNAL CONDITIONER. OPS CHECK OK. Aug 4, 1997 · N484UE · Bag JETSTM3201SDR 97ZZZX3801Ttl · malfunctionedIAD/ALB - FLT 6258 - DURING TAKEOFF AT 1730 HOURS ON 8-4-97, ABORTED TAKEOFF DUE TO RT ENGINE ONLY MADE 99 PERCENT RPM. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RESET TTL, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNEDAug 4, 1997 · N480UE · Bag JETSTM3201SDR REXA97217Ctot · malfunctionedON TAKEOFF WHEN CTOT ENGAGED, TARGET TQ WAS SET 94 PERCENT LEFT ENGINE WENT TO 104 AND RIGHT WENT TO 108. REMOVED AND REPLACED CTOT CTL PANEL. PERFORMED GROUND RUN UP FOR OPS CHECK. OPS CHECK GOOD. (M)Jul 30, 1997 · N922MA · Saab SF340ASDR WTAA970140Connector · dirtyACV - RIGHT ENGINE EGT AND TORQUE FLUCTUATION REPORTED WHILE POWER WAS ADVANCED FOR TAKEOFF. ABORTED TAKEOFF. MAINTENANCE DEFERRED RT SRL AND TTL SYSTEMS PER MEL 76-1 AND MEL 76-2. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEARED DEFERRAL BY Jul 27, 1997 · N331CA · Bag JETSTM3101SDR VTZA97370Torq Signal Cond · out of adjustROA/IAD - FLT 6490 - DURING TAKEOFF AT 1650 HOURS ON 7-27-97, ABORTED TAKEOFF DUE TO BOTH ENGINES DID NOT MAKE TARGET TORQUE. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED TORQUE SIGNAL CONDITIONERS. OPS CHECK OKJul 27, 1997 · N496UE · Bag JETSTM3201SDR VTZA97428Ttl · out of adjustIAD/ROA - FLT 6200 - DURING TAKEOFF AT 2044 HOURS ON 7-24-97, ABORTED TAKEOFF DUE TO RT TORQUE DROPPED TO 90 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 07020, MEL 76-2 ON TTL. MAINTENANCE CLOSED DMI 070Jul 24, 1997 · N488UE · Bag JETSTM3201SDR REXA97209Ctot · malfunctionedCTOT DRIVES ENGINE TO HIGHER TQ THAN SET. MEL'D CTOT. (M)Jul 24, 1997 · N326PX · Saab SF340ASDR VTZA97410Ttl · malfunctionedIAD/PIT - FLT 6332 - DURING TAKEOFF AT 1809 HOURS ON 7-23-97, AIRCRAFT ABORTED TAKEOFF DUE TO LT ENGINE EGT SPIKED FOLLOWED BY TORQUE ROLL BACK. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 52107, MEL 76-2 ON TTL. Jul 23, 1997 · N473UE · Bag JETSTM3101SDR 97ZZZX5069Transducer · failedTORQUE TRANSDUCER UNIT OPERATES INTERMITTENTLY. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 23, 1997 · N586BH · Bolkms BK117A4SDR REXA97203Signal Cond · req adjustLEFT ENGINE WILL NOT MAKE TAKEOFF TORQUE. ADJUSTED LEFT SIGNAL CONDITIONER, RAN LEFT ENGINE. NO DEFECTS NOTED. (X)Jul 20, 1997 · N305PX · Bag JETSTM3101SDR VTZA97421Ttl · low torqueIAD/ROC - FLT 6296 - DURING TAKEOFF AT 0800 HOURS ON 7-18-97, ABORTED TAKEOFF DUE TO LT ENGINE TORQUE AND RPM FLUCTUATION OF 20 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 10630, MEL 77-1 ON LT TTL. MAINJul 18, 1997 · N497UE · Bag JETSTM3201SDR VTZA97411Ttl · malfunctionedIAD/ROC - FLT 6296 - DURING TAKEOFF AT 0800 HOURS ON 7-18-97, ABORTED TAKEOFF DUE TO LT ENGINE TORQUE AND RPM FLUCTUATION OF 20 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 10630, MEL 77-1 ON LT TTL. AIRCJul 18, 1997 · N497UE · Bag JETSTM3201SDR REXA97197Ctot · failedLEFT ENGINE CTOT WOULD NOT COME UP ON TAKEOFF (2 ATTEMPTS). DEFERRED AND PLACARD PER MEL. (X)Jul 16, 1997 · N340PX · Saab SF340ASDR RAIA970712Tq Signal Cond · failedFLT 7033 - STL - RIGHT ENGINE TORQUE DROPPED TO 80 PERCENT ON TAKEOFF ROLL. MAINTENANCE REPLACED RIGHT TORQUE SIGNAL CONDITIONER. (M)Jul 16, 1997 · N433AM · Bag JETSTM3201SDR HEEA0010501Torquemeter · sticksTORQUEMETER STICKS BETWEEN 92-97% AND SHOWS 5% WITH ENGINE SHUT DOWN.Jul 16, 1997 · N31073 · Bell 206L3SDR REXA97200Ctot · malfunctionedCTOT BRING RIGHT ENGINE 4 PERCENT HIGHER THAN SET TORQUE. MEL'D CTOT. (X)Jul 14, 1997 · N922MA · Saab SF340ASDR REXA97193Tq Signal Cond · out of adjustLEFT ENGINE WILL NOT MAKE TORQUE. RESET LEFT SIGNAL CONDITIONER AND REPLACED GASKETS ON LEFT BLEED LINE. (X)Jul 13, 1997 · N302PX · Bag JETSTM3101SDR WTAA970127BTq Signal Cond · out of adjustSFO - RIGHT ENGINE NOT MAKING TAKEOFF TORQUE. TAKEOFF ABORTED. MAINTENANCE CLEANED FUEL BYPASS VALVE CANNON PLUG AND ADJUSTED TORQUE SIGNAL CONDITIONER. OPERATIONAL CHECK SATISFACTORY. AIRCRAFT RETURNEDTO SERVICE. (X)Jul 11, 1997 · N420UE · Bag JETSTM3101SDR HEEA0010439Torquemeter · erraticTORQUE METER ERRATIC AT HIGH TORQUE, READINGS BOUNCE.Jul 10, 1997 · N6160Y · Bell 206L3SDR HEEA0010435Indicator · reads highTORQUE METER INDICATES HIGH AT 80% TO 100%.Jul 10, 1997 · N5007Q · Bell 206L1SDR VTZA97378Ttl Warning · activatedGSO/IAD - FLT 6560 - DURING TAKEOFF AT 0740 HOURS ON 7-8-97, AIRCRAFT ABORTED TAKEOFF DUE TO RT ENGINE TTL WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND GROUND RAN AIRCRAFT AND COULD NOT DUPLICATE ANJul 8, 1997 · N484UE · Bag JETSTM3201SDR REXA97191Tq Signal Cond · failedRIGHT ENGINE WOULD NOT RESPOND TO POWER LEVER CHANGES. SHUT ENGINE DOWN. REMOVED AND REPLACED RIGHT ENGINE SIGNAL CONDITIONER. (X)Jul 7, 1997 · N316PX · Bag JETSTM3101SDR HEEA0010373Indicator · defectiveTORQUE INDICATOR WILL NOT INDICATE INTERMITTENTLY WITH FAINT INSTRUMENT CAUTION LIGHT ON CAUTION PANEL.Jun 30, 1997 · N141MA · Bell 407SDR QXEA9700310Tq Signal Cond · out of adjABORTED TAKEOFF AT 90 KNOTS DUE TO NR 1 ENGINE WOULD NOT MAINTAIN 100 PERCENT POWER OF 85 PERCENT TORQUE. EGT READ 650 THEN BYPASS LIGHT AND LOSS OF APPROXIMATELY 30 PERCENT TORQUE. ADJUSTED TORQUE SIGNAL CONDITIONER, RECOMPED FROM +3 TO -10. PERFORMED MAXIJun 29, 1997 · N27444 · Swrngn SA227AC
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