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 HEEA0013012Indicator · sticksTORQUE INDICATOR STICKS INTERMITTENTLY AND SPLITS.Feb 10, 1998 · N217UC · Bolkms BK117B1SDR HEEA0012947Gauge · stickingTORQUE INDICATOR NEEDLE STICKING.Feb 10, 1998 · N2270G · Bell 206B3SDR HEEA0012928Indicator · inoperativeDUAL TORQUE NR1 NEEDLE INOPERATIVE.Feb 10, 1998 · N31217 · Skrsky S76ASDR AU980162Sensor · faulty(AUS) LH ENGINE TORQUE SENSOR INTERNAL FAULT.Feb 10, 1998SDR HEEA0012882Indicator · failedWHILE HOVERING AT 68-71% TORQUE, TORQUE GAUGE STARTED INCREASING UNTIL REACHING FULL SCALE READING AND THEN WENT TO 0%.Feb 9, 1998 · N406PH · Bell 407SDR COMA9810038Tq Indicator · malfunctionDURING TAKEOFF, THE RIGHT HAND TORQUE INDICATION WAS 195 PERCENT. REPLACED THE TORQUE INDICATOR.Feb 6, 1998 · N162CA · Emb EMB120RTSDR VTZA98042Torque Gauge · failedIAD/ROA - FLT 6591 - DURING TAXI AT 1645 HOURS ON 2-2-98, AIRCRAFT RETURNED TO GATE DUE TO LT TORQUE GAUGE FAILED. MAINTENANCE INSPECTED AND SWITCHED TO NR 2 BRIDGE ON THE LT TORQUE SIGNAL CONDITIONER. AIRCRAFT GROUND RUN, OPS CHECK OK. AIRCRAFT RELEASED ANDFeb 2, 1998 · N497UE · Bag JETSTM3201SDR HEEA0012754Indicator · failedTORQUE INDICATOR WILL NOT COMPLETE SELF TEST. BAR GRAPH STARTS HALFWAY UP.Feb 2, 1998 · N406PH · Bell 407SDR HEEA0012662Transmitter · failedTRANSMITTER PEGGED ON MAX.Jan 26, 1998 · N5748M · Bell 214STSDR HEEA0012636Transducer · failedTRANSDUCER OUTPUT IS 1 VOLT CONTINUOUSLY.Jan 26, 1998 · N136AE · Bolkms BK117B2SDR HEEA0012632Transducer · defectivePRESS TRANSDUCER CAUSES 30% SPLIT INTERMITTENTLY.Jan 26, 1998 · N217UC · Bolkms BK117B1SDR REXA98036Ctot · malfunctionedLEFT CTOT WOULD NOT HOLD. CREW DID ANOTHER P-3 TST. OPS CHECK GOOD. TRIED ANOTHER T/O OPS CHECK GOOD. (M)Jan 24, 1998 · N370PX · Saab 340BSDR 98ZZZX507Indicator · malfunctionedTORQUE INDICATOR GIVES HIGHER TORQUE THAN TESTED.Jan 19, 1998 · N206BY · Bell 206B3SDR PLGA980114CConnector · dirtyBTV - AFTER TAKEOFF, THE CREW REPORTED THE LEFT ENGINE TORQUE STARTED FLUCTUATIONS BETWEEN 80-90 PERCENT. THE LEFT OIL PRESSURE ALSO STARTED FLUCTUATIONS OF 20 PSI. AIRCRAFT RETURNED TO BTV AND LANDED WITHOUT INCIDENT. MAINTENANCE CLEANED ELECTRICAL CONNECTJan 14, 1998 · N741BA · Saab SF340ASDR VTZA98011Tq Signal Cond · out of adjustFLT 6319 - IAD-CLE - DURING CLIMB, EXPERIENCED A PROBLEM WITH THE LEFT TORQUE GAUGE GOING TO 120 PERCENT. AIRCRAFT RETURNED TO IAD AND THE GATE WHERE MAINTENANCE CONTROL WAS NOTIFIED. MAINTENANCE WAS DISPATCHED TO THE AIRCRFT AND FOUND THAT THERE WAS OIL IN Jan 12, 1998 · N497UE · Bag JETSTM3201SDR CA980317001Probe · faulty(CAN) TAKEOFF REJECTED DUE TO NR 2 ENGINE TORQUE DROPPING TO ZERIO. NR 2 ECU WENT TO MANUAL DURING RUNWAY EXITING, ALL ENGINE INDICATIONS RETURNED TO NORMAL. AT RAMP WHEN FEATHERING PROP ENGINE TORQUE STARTED TO RISE. NR 2 ENGINE WAS SHUTDOWN. TORQUE GAUGE FAUJan 8, 1998 · Dhav DHC8311SDR HEEA0012521Indicator · failedDUAL TORQUE INDICATOR WILL NOT ADJUST DOWN.Jan 6, 1998 · N1546K · Skrsky S76ASDR HEEA0012506Indicator · sticksNR1 ENGINE TORQUE NEEDLE STICKS AND IS ERRATIC.Jan 6, 1998 · N108X · Bell 412SDR 98ZZZX1837Indicator · sticksDUAL TORQUE INDICATOR NEEDLES STICK. REPLACES WITH NEW UNIT, CORRECTED PROBLEM.Jan 2, 1998 · N202LF · Bolkms BO105LSA3SDR 98ZZZX1413Transmitter · fluctuationsPILOT REPORTED TORQUE INDICATOR FLUCTUATIONS 1.0 PSI TO 2.0 PSI. REMOVED S/N 4990-4-109. TOTAL TIME 517.8 HOURS.Dec 30, 1997 · N313KA · Kaman K1200SDR VTZA97706Ttl Valve · failedFLT 6362 - SYR-IAD - ABORTED TAKEOFF DUE LEFT ENGINE TORQUE DROP. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI53263, MEL 77-1 ON TTL SYSTEM. MAINTENANCE CLOSED DMI 53263 ON 12-26-97 BY REMOVING AND REPLACING TTL VADec 25, 1997 · N477UE · Bag JETSTM3201SDR 98ZZZX736Indicator · failedTORQUE INDICATOR WILL LOSE ALL POWER AT TIMES (INTERMITTENT). REPLACED INDICATOR.Dec 20, 1997 · N58236 · Bell 407SDR WTAA970222Tq Signal Cond · out of adjustSFO - LEFT ENGINE WON'T MAKE MINIMUM STATIC TORQUE ON TAKEOFF. TAKEOFF ABORTED. MAINTENANCE CALIBRATED LEFT TORQUE SIGNAL CONDITIONER PERFORMED ENGINE RUN. OPERATIONAL CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (M)Dec 7, 1997 · N418UE · Bag JETSTM3101SDR HEEA0012256Torque Gauge · erraticTORQUE GAUGE READING ERRATIC.Dec 5, 1997 · N57416 · Bell 407SDR HEEA0012210Indicator · stickDUAL TORQUE INDICATOR BOTH NEEDLES STICK INERMITTENTLY.Dec 3, 1997 · N5736D · Bell 212SDR VTZA97675Iec · failedFLT 6327 - DTW-IAD - ABORTED TAKEOFF DUE TO A TORQUE FLUCTUATION INDICATION ON THE RIGHT ENGINE. AIRCRAFT RETURNED TO GATE AND NOTIFIED MAINTENANCE CONTROL. MAINTENANCE WAS DISPATCHED AND FOUND THE NR 1 BRIDGE ON THE IEC WAS AT FAULT. MAINTENANCE SWAPPED THDec 2, 1997 · N309UE · Jetair JETSTM4101SDR VTZA97672Tt2 Sensor · failedFLT 6353 - IAD-TYS - ABORTED TAKEOFF DUE TO NR 1 ENGINE TORQUE WENT TO 110 PERCENT WITH POWER LEVER .5 WAY. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED TT2 SENSOR, OPS CHECK OK. AIRCRAFT WAS RELEASED ANNov 25, 1997 · N313UE · Jetair JETSTM4101SDR HEEA0012083Indicator · sticksNR2 NEEDLE STICKS AT 30% INTERMITTENTLY.Nov 19, 1997 · N33008 · Bell 412SDR HEEA0012045Transmitter · failedTORQUE TRANSMITTER BLOWS FUSES.Nov 19, 1997 · N9190Y · Bolkms BO105SSDR HEEA0012040Indicator · sticksTORQUE INDICATOR NR2 NEEDLE STICKS AFTER ONE HOUR USE. TIME SINCE REPAIR 217:05.Nov 18, 1997 · N108X · Bell 412SDR CA971216005Tms Actuator · failed(CAN) UNABLE TO REDUCE POWER BELOW 85 PERCENT N1. ENGINE WAS SHUT DOWN BY USING 'T' HANDLE, WHILE ON APPROACH. TORQUE MANAGEMENT SYSTEM (TMS) ACTUATOR WAS FOUND STUCK IN THE FULLY EXTENDED POSITION. TMS ACTUATOR REPLACED, ENGINES WERE GOUND RUN SERVICEABLE ANov 17, 1997SDR ASOA97060Tscu · defectiveON DEPARTURE FSM-DFW, RIGHT PROP FEATHERED UNCOMMANDED. THE CREW TURNED THE AUTOFEATHER OFF AND THE RIGHT ENGINE RETURNED TO NORMAL. THE CREW DECLARED AN EMERGENCY AND RETURNED TO FSM WHERE LANDING WAS MADE SAFELY AND WITHOUT FURTHER INCIDENT. TXK MAINTENANNov 16, 1997 · N258AS · Emb EMB120RTSDR HEEA0012001Transmitter · failedTORQUE TRANSMITTER STICKING. TRANSMITS LOW OUT OF TOLERANCE.Nov 13, 1997 · N7128R · Bell 412SDR HEEA0011945Torque Indicator · mis markedINDICATOR HAS WRONG RANGE MARKINGS FOR RED LINE.Nov 12, 1997 · N8589X · Bell 206L3SDR QXEA9700738Sensor · malfunctionedAFTER GEAR RETRACTION,NR 2 ENGINE TORQUE FLUCTUATED TO 125 PERCENT FOR 1 TO 2 SECONDS THEN RETURNED TO TAKEOFF SETTING OF 97 PERCENT. THE SAME FLUCTUATIONS OCCURRED 3 TIMES WITHIN A PERIOD OF 30 SECONDS. THE POWER UPTRIM LIGHT CYCLED THEN THE NR 2 ENGINE POWNov 4, 1997 · N350PH · Dhav DHC8202SDR CA971110006Harness · faulty(CAN) DURING CLIMB-OUT, NR 2 ENGINE TORQUE INDICATOR WENT TO ZERO, ALL OTHER PARAMETERS REMAINED NORMAL. NR 2 ENGINE WAS SHUTDOWN. POST-FLIGHT INVESTIGATION FOUND THE NR 2 ENGINE HARNESS FAULTY. THE HARNESS WAS REPLACED, THE ENGINE WAS GROUND RUN SERVICEABLENov 4, 1997 · Dhav DHC8102SDR HEEA0011740Indicator · failedTORQUE INDICATOR SHOWS NO DISPLAY.Oct 31, 1997 · N407MM · Bell 407SDR 97ZZZM1214Torque Gauge · failedLEFT TORQUE GAUGE INOPERATIVE ON TAKEOFF ROLL, TAKEOFF ABORTED. TORQUE GAUGE FAILURE. REMOVED AND REPLACED LEFT TORQUE GAUGE. (M)Oct 31, 1997 · N861CA · Beech 1900DSDR CA971113003Torque Probe · faulty(CAN) DURING CLIMB, TORQUE INDICATION ROLLED BACK TO 45 PERCENT. OTHER INDICATIONS NO CHANGE IN POWER OUTPUT. DFDR PULLED FOR EVALUATION AND PROBE REPLACED. FUNCTION CHECK SERVICEABLE.Oct 28, 1997 · Dhav DHC8102SDR VTZA97597Ttl Valve · failedGSO/IAD - FLT 6322 - DURING TAKEOFF ON 10-26-97 AT 1300 HOURS, ABORTED TAKOFF DUE TO LT ENGINE TORQUE DROPPED TO 80 PERCENT. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 49248, MEL 76-2 ON TTL. MAINTENANCE CLOSED DMI Oct 26, 1997 · N486UE · Bag JETSTM3201SDR VTZA98319Connector · looseFLT 6339 - IAD-EWR - DURING CLIMB, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO RIGHT ENGINE TORQUE 60 PERCENT AND LEFT ENGINE TORQUE 110 PERCENT. AIRCRAFT LANDED AND RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RESEATED BOTH TORQUE SIOct 22, 1997 · N477UE · Bag JETSTM3201SDR HEEA0011719Torquemeter · failedCALIBRATION IS OFF, TORQUEMETER TRANSMITS HIGH.Oct 22, 1997 · N500PH · Beech 200BEECHSDR HEEA0011562Torquemeter · fluctuatingTORQUEMETER NEEDLE IS FLUCTUATING.Oct 16, 1997 · N41791 · Bell 206L3SDR HEEA0011524Torquemeter · malfunctionDUAL TORQUE METER RANGE MARKING PAINT FLAKING. NR1 TORQUE NEEDLE BOUNCES DURING FLIGHT.Oct 15, 1997 · N91070 · Bolkms BO105SSDR 97ZZZX5046Transducer · failedTORQUE INDICATOR BEGAN TO SPIN THEN FROZE BELOW ZERO. REMOVED AND REPLACED.Oct 12, 1997 · N117NG · Bolkms BK117A4SDR 97ZZZX5070Indicator · sticksTORQUE INDICATOR'S NR 1 NEEDLE STICKS OR BECOMES ERRATIC. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. REPLACED WITH REPAIRED UNIT SN 190.Oct 11, 1997 · N586BH · Bolkms BK117A4SDR QXEA9700653Tq Indication · malfunctionedPDX- ON TAKEOFF ROLL, NR 2 ENGINE TORQUE INDICATION STARTED TO FLUCTUATE. ABORTED TAKEOFF AND RETURNED TO THE GATE. AIRCRAFT UNDER REPAIRS.Oct 10, 1997 · N26959 · Swrngn SA227ACSDR VTZA97562Ttl · malfunctionedFLT 6348 - IAD-GSO - DURING CLIMB, AIRCRAFT MADE AN UNSCHEDULED LANDING AT IAD DUE LT TTL CAUSED TORQUE TO FLUCTUATE. AIRCRAFT RETURNED TO GATE WITH NO FURTEHR PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 57731, MEL 76-2 ON TTL. MAINTENANCE CLOSED DMI 577Oct 9, 1997 · N370MT · Bag JETSTM3201SDR HEEA0011292Transmitter · defectiveTORQUE TRANSMITTER PINS FOR ELECTRICAL CONNECTOR TWISTED, KEY BROKEN.Oct 8, 1997 · Bell 412SDR HEEA0011145Torquemeter · sticksTORQUE METER NEEDLE STICKS THROUGHOUT SCALE.Oct 2, 1997 · N8591X · Bell 206L3
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