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.
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
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 HEEA0010346Indicator · sticksDUAL TORQUE NEEDLE HAS STICKY OPERATION THROUGHOUT SEALS.SDR HEEA0010308Torquemeter · reads lowTORQUE METER INDICATIONS 6% LOW AT 100%.SDR REXA97178Ttl · malfunctionedRETURNED TO RAMP WITH RIGHT ENGINE TORQUE FALLING OFF ON TAKEOFF. DEFERRED TTL. (M)SDR HEEA0010235Torquemeter · faultyTORQUE INDICATOR READS LOW OUT OF TOLERANCE AND GLASS OILY.SDR HEEA0010213Indicator · reads highCO PILOTS TORQUE INDICATOR READS 2 TO 3% HIGHER THAN PILOTS SIDE.SDR UF6A970611Tq Indication · lowORD - FLT 5728 - ON TAKEOFF, NR 2 ENGINE TORQUE WAS 15 PERCENT BELOW TORQUE BUG WITH MAX POWER LEVER POSITION. MAINTENANCE INSPECTED, CLEARED EEC, AND RAN BOTH ENGINES. NO DEFECTS NOTED. (M)SDR REXA97176Ng Gauge · malfunctionedLEFT ENGINE OVERSPED ON TAKEOFF. SWAPPED NG GAUGES PERFORMED GROUND RUNS NO DEFECT NOTED. (M)SDR RAIA970615Tq Signal Cond · out of adjustSTL - FLT 7356 - NR 2 ENGINE LOW TORQUE ON TAKEOFF. CALIBRATED TORQUE SIGNAL CONDITIONER. (X)SDR PLGA970619ACircuit Breaker · trippedBOS - FLT 4389 - THERE WAS NO TORQUE INDICATION FROM RIGHT ENGINE DURING TAKEOFF ROLL. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. CREW FOUND CIRCUIT BREAKER FOR RIGHT TORQUE INDICATOR OPEN. RESET BREAKED AND INDICATION WAS NORMAL. AIRCRAFT RETUSDR RAIA970614Tq Signal Cond · out of adjustSTL - FLT 7448 - NR 1 ENGINE LOW TORQUE ON TAKEOFF. CALIBRATED TORQUE SIGNAL CONDITIONER. (X)SDR REXA97169Tq Signal Cond · out of adjustLEFT ENGINE WILL NOT MAKE TORQUE. ADJUSTED LEFT ENGINE SIGNAL CONDITIONER. (X)SDR WTAA970105Ttl System · malfunctionedFAT - AFTER TAKEOFF, RIGHT ENGINE TORQUE TO 70 PERCENT DROP REPORTED. AIRCRAFT RETURNED TO STATION. MAINTENANCE DEFERRED TTL SYSTEM PER MEL 76-2. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEARED DEFERRAL BY PERFORMING CONTINUITY CHECK OF RIGHSDR VNAA9706005Sensor · failedON CLIMBOUT, THE LEFT TORQUE DROPPED TO 40 PERCENT. RETURNED TO THE FIELD WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT NH SENSOR, OPERATIONAL CHECK GOOD.SDR HEEA0010117Indicator · failedWILL TEST, BUT THEN GOES DEAD.SDR REXA97168Tq Signal Cond · out of adjustDID NOT MAKE FULL TORQUE ON TAKEOFF. ADJUSTED LEFT AND RIGHT SIGNAL CONDITIONERS TO D.S.C. VALUES. (X)SDR WTAA970107Ttl Controller · failedSFO - LEFT ENGINE WOULD NOT DEVELOP TAKEOFF POWER. TAKEOFF ABORTED. MAINTENANCE DEFERRED TTL SYSTEM PER MEL 76-2. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEARED DEFERRAL BY REPLACING TTL CONTROLLER. OPERATIONAL CHECK SATISFACTORY. (X)SDR AU970701Transmitter · faulty(AUS) NO1 ENGINE TORQUE TRANSMITTER FAULTYSDR HEEA0010064Transducer · erraticENG TORQUE ERRATIC READINGS.SDR 98ZZZX1391Indicator · failedTORQUE INDICATOR'S FIRST LED SEGMENT WILL NOT ILLUMINATE.SDR REXA97155Tq Signal Cond · failedLEFT TORQUE AND EGT FLUCTUATION WITH SRL AND TTL ON, TTL OFF AND NO TORQUE FLUCTUATION BUT STILL EGT FLUCTUATION. SRL CAP LIGHT ILLUMINATED, STILL EGT FLUCTUATION WITH SRL TURNED OFF. REMOVED AND REPLACED LEFT SIGNAL CONDITIONER. (M)SDR HAIHEEA9975Indicator · shortedTORQUE INDICTOR #1 ENGINE SIDE INTERNALLY SHORTED.SDR HAIHEEA9971Torquemeter · fluctuationTORQUEMETER NEEDLE FLUCTUATES 10% TO 15%.SDR HNAA9797552Tscu · failedFLT 3050 - TPA-TLH - UPON POWER ADVANCE FOR TAKEOFF, THE NR 2 ENGINE PROPELLER AUTO FEATHERED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE WITHOUT INCIDENT. REMOVED AND REPLACED NR 1 AND NR 2 TORQUE SIGNAL CONDITIONING UNIT (TSCU). (M)SDR 97ZZZM874Tscu · failedFLT 3050 - TPA-TLH - UPON POWER ADVANCE FOR TAKEOFF, THE NR 2 ENGINE PROPELLER AUTO FEATHERED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE WITHOUT INCIDENT. REMOVED AND REPLACED NR 1 AND NR 2 TORQUE SIGNAL CONDITIONING UNIT (TSCU). REFERENSDR HAIHEEA9892Indicator · failedTORQUE INDICATOR WOULD NOT INDICATE.SDR REXA97132Tq Signal Cond · out of adjustLEFT ENGINE LOW ON TORQUE. ADJUSTED LEFT SIGNAL CONDITIONER. (M)SDR 97ZZZX5071Transducer · malfunctionedTORQUE TRANSDUCER UNIT CAUSES PRESSURE GAUGE TO FLUCTUATE 10 PERCENT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX3622Indicator · defectiveDUAL TORQUE INDICATOR RECEIVED BAD FROM STOCK. ON INSTALLING, INDICATOR WOULD NOT CALIBRATE (SLOPE NR 1). NEEDLE 1 STUCK AT 20 PERCENT, WITH POWER OFF, IT GOES TO ZERO.SDR VTZA97275Tq Ring Bridge · failedFLT 6496 - IAD-MDT - DURING CLIMB, MADE AN UNSCHEDULED LANDING AT IAD DUE TO RT ENGINE TORQUE, EGT, FUEL FLOW, AND RPM FLUCTUATING. AIRCRAFT RETURNED TO THE GATE AT IAD WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND FOUND RIGHT ENGINE TORQUE RING BRIDGESDR MVH0064159Transmitter · not calibratedTRANSMITTER CALIBRATED IMPROPERLY.SDR SWIA97893Tq Signal Cond · failedON INITIAL CLIMB, RIGHT TORQUE GAUGE FLUCTUATED DRAMATICALLY WITH NO ACCOMPANING YAW. THIS WAS FOLLOWED BY RIGHT PROPELLER INADVERTENT AUTO FEATHER. RETURNED TO PSP. CHANGED TORQUE SENSOR AND TORQUE SIGNAL CONDITIONER. RAN RIGHT ENGINE, OPS CHECKS GOOD.SDR HAIHEEA9777Indicator · reads highTORQUE INDICATOR READS HIGH OUT OF TOLERANCE.SDR VTZA97262Ttl · malfunctionedFLT 6481 - EWR-IAD - ABORTED TAKEOFF DUE TO LEFT TORQUE DROPPED TO 60 PERCENT AND FLUCTUATED. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHR PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI07011, MEL 76-2, DEFERRED LEFT TTL. MAINTENANCE CLOSED DMI 07011 ON 5-7-SDR HAIHEEA9713Torque Gauge · reads highTORQUE GAUGE READS TOO HIGH WITH ENGINE OFF.SDR VNAA9704008Tq Signal Cond · failedON TAKEOFF ROLL WHEN SETTING POWER, THE LEFT TORQUE INDICATION DROPPED TO ZERO. ABORTED TAKEOFF WITHOUT INCIDENT. MAINTENANCE DETERMIND THAT THIS WAS A TORQUE INDICATION PROBLEM ONLY AND REMOVED AND REPLACED THE LEFT TORQUE SIGNAL CONDITIONER UNIT, OPERATIONSDR WTAA970070Tq Indication · surgedFAT LEFT ENGINE TORQUE SURGE REPORTED ON TAKEOFF ROLL. TAKEOFF ABORTED. MAINTENANCE DEFERRED TTL AND SRL SYSTEMS. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEARED DEFERRAL. UNABLE TO DUPLICATE DISCREPANCY DURNG ENGINE GROUND RUN. (M)SDR REXA97112Circuit Breaker · trippedRIGHT TORQUE GAUGE INOPERATIVE. CYCLED CIRCUIT BREAKER. OPS CHECK GOOD. (X)SDR VTZA97250Connector · dirtyROC/IAD - FLT 6336 - DURING TAKEOFF AT 2040 HOURS ON 4-27-97, MADE AN UNSCHEDULED LANDING DUE TO RT ENGINE HAD LESS RPM WHEN PULLED BACK TO 99.8 PERCENT. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED TTL CANNON PLUG, OPS CSDR 97ZZZX3601Vartom · failedFAILS TO REACH 108 PERCENT MODE. TORQUE SPLITS AND HUNTING.SDR M3HA97060Tq Indication · malfunctionedFLT 421 - OGG - ON TAKEOFF ROLL FROM OGG, WITH POWER SET AT APPROX 89 PERCENT, NR 2 ENGINE TORQUE DROPPED TO 80 PERCENT. NO OTHER ABNORMAL INDICATION NOTED. PERFORMED HIGH POWER RUN UP AND HIGH SPEED TAXI IAW JIC 72-00-00 ERU 1000-001. COULD NOT DUPLICATED SDR VTZA97241Tt2 Sensor · failedIAD/ROC - FLT 6326 - DURING DESCENT AT 1310 HOURS ON 4-17-97, AIRCRAFT MADE A SCHEDULED LANDING WITH ONE DISCREPANCY WHICH WAS ON DESCENT FROM 11,000 TO 8,000 FEET, LEFT ENGINE TORQUE DROPPED FROM 100 PERCENT TO 80 PERCENT, THEN CAME BACK TO 100 PERCENT AT 8,0SDR HAIHEEA9331Indicator · sticksDUAL TORQUE #1 NEEDLE STICKS AT 70%.SDR REXA97190Tq Signal Cond · out of adjustRIGHT ENGINE WILL NOT MAKE TORQUE SHORT BY 15 PERCENT. ADJUSTED RIGHT SIGNAL CONDITIONER. (X)SDR REXA97089Tq Signal Cond · failedRETURN TO RAMP WITH TORQUE PROBLEM. REMOVED AND REPLACED SIGNAL CONDITIONER. (M)SDR 97ZZZX2438Indicator · bindsTORQUE INDICATOR UNIT INOPERATIVE UPON INSTALL. NR 1 ENGINE NEEDLE BINDS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR REXA97083Tq Signal Cond · malfunctionedLEFT TORQUE ERRATIC WITH TTL ON OR OFF. REMOVED AND REPLACED TORQUE SIGNAL CONDITIONER FOR LEFT ENGING GROUND RAN, CHECKS GOOD. (M)SDR 97ZZZX3596Transducer · erraticTORQUE INDICATION ERRATIC.SDR M4VA97003Connector · dirtyFLT 22 - DURING TAKEOFF ROLL NR 2 TORQUE INDICATOR DIGITAL READNUT WENT INOP. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE WITHOUT INCIDENT. NR 2 TORQUE DIGITAL READOUT WAS PLACED ON MEL. SYSTEM WAS LATER INSPECTED, TORQUE TRANSMITTER CANNON PLUG WSDR VTZA97200Monopole · failedHVN/IAD - FLT 6448 - DURING TAKEOFF AT 1430 HOURS ON 3-30-97, ABORTED TAKEOFF DUE TO LT ENGINE TORQUE WENT TO 80 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 56693, MEL 77-10 ON LT SRL. MAINTENANCE CLOSEDSDR M3HA97056Connector · dirtyHNL - FLT 231 - ON TAKEOFF ROLL, THE CREW NOTICED THAT THE NR 2 ENGINE TQ FLUCTUATION 10 TO 20 PERCENT. THE CREW ABORTED THE T/O AND RETURNED TO THE MX LINE. UPON INSPECTION OF THE NR 2 ENGINE, FOUND OIL IN CANNON PERFORMED GROUND RUN AND BROUGHT UP TO POWER
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