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 01302006AGauge · sticksRT TORQUE GAUGE STICKS ON GROUND AND INFLIGHT. RT TORQUE GAUGE PN ON/OFF 129-380004-3, SN ON 304, SN OFF 368. OPS CHECK GOOD IAW 31-10-00.SDR 01252006CPanel · inoperativeRT APR DID NOT ENGAGE ON T/O ROLL. REMOVED AND REPLACED CTOT PANEL IAW 76-10-50. PN ON/OFF 7239060-503, SN ON 0296, SN OFF 0393. PERFORMED OPERATIONAL CHECK OF AUTOMATIC POWER RESERVE SYSTEM IAW 76-14-01. OPS CHECK GOOD.SDR CA060112009Indicator · inoperativeON TAKEOFF, THE TORQUE INDICATOR WENT TO ZERO. TAKEOFF ABORTED AND AIRCRAFT RETURNED TO BLOCKS. MAINTENANCE REPLACED INDICATOR AND RELEASED AIRCRAFT AFTER SATISFACTORY GROUND RUN.SDR KPVA20061Indicator · fluctuatesNR 1 TAKEOFF GAUGE READOUT ZERO ON TAKEOFF ROLL AND CONTINUOUS FLUCTUATION AT 20% AND 125% INTERMITTENT THEREAFTER. REMOVED AND REPLACED NR 1 TORQUE INDICATOR IAW DHC-8 MM 71-10-00 PG 201-202. PERFORMED INDICATOR FUNCTIONAL CHECK IAW DHC-8 MM 77-10-00 PG 2, SDR 01092006FLight · not seatedON TAKEOFF DID NOT GET RT APR LIGHT WHEN PAST 64 DEGREES SWITCH. FOUND RT APR LIGHT CAPSULE NOT SEATED IN HOUSING, RESEATED APR LIGHT OPS CHECK GOOD.SDR SDR2005089Torque Sensor · inoperativeAFTER TAKEOFF AND DURING CLIMBING, THE RT ENGINE STARTED TO FLUCTUATE ABOUT 10 PERCENT. REPLACED NR 2 TORQUE SENSOR. (K)SDR CA051223007Torque Sensor · faultyDURING CLIMB, THE ENGINE PROPELLER FEATHERED UNCOMMANDED ACCOMPANIED BY AN ENGINE OVER-TORQUE. THE ENGINE WAS SHUT DOWN IN FLIGHT AND THE AIRCRAFT DIVERTED TO POINT OF DEPARTURE. SUBSEQUENT INSPECTION REVEALED A FAULTY ENGINE TORQUE SENSOR.SDR CA051129015Connector · contaminatedON APPROACH, ENGINE TORQUE COULD NOT BE REDUCED BELOW 40 PERCENT. THE ENGINE WAS SHUT DOWN IN FLIGHT. SUBSEQUENT INVESTIGATION REVEALED A CONTAMINATED TORQUE SENSOR CONNECTOR.SDR 200515Indicator · fluctuatesROUGH NR 2 ENG, TQ FLUCTUATION +/-2 PERCENT NON-STOP, CONTINUOUS. REMOVED AND REPLACED NR 2 ENGINE TORQUE GAUGE IAW MM CHAP. 77-10-00 PG. 201-202. NOTE: SUBSEQUENT TEST FLIGHT GOOD.SDR ALG2005F00085Indicator · failedIN FLIGHT, TORQUE INDICATOR FAILED. RETURNED TO DEPARTURE AND NOTIFIED MAINTENANCE. REMOVED AND REPLACED TORQUE INDICATOR WITH SERVICEABLE UNIT IAW MM. (K)SDR B65A106130Meter · unserviceableTORQUE KEEPS FLUCTUATING.SDR CA051006012Tscu · unserviceable(CAN) FOLLOWING TAKE-OFF, THE ENGINE EXPERIENCED AN UNCOMMANDED TORQUE REDUCTION ACCOMPANIED BY A REDUCTION IN PROPELLER SPEED. THE ENGINE WAS SHUT DOWN IN FLIGHT AND THE AIRCRAFT DIVERTED TO POINT OF DEPARTURE. SUBSEQUENT INSPECTION REVEALED AN UNSERVICEABLSDR KBM2005F00256Gauge · inoperativeTORQUE GAUGE INOPERATIVE. REPLACED WITH SERVICEABLE UNIT. (K)SDR 09092005BIndicator · malfunctionedLT TORQUE GAUGE INDICATED AN ADDITIONAL 7 PERCENT ON T/O WITH APR ENGAGED. MEL'ED SYSTEM.SDR SF20050820Indicator · failedFLIGHT 7558 IAD-ABE, AFTER ARMING CONSTANT TORQUE ON TAKEOFF, RIGHT ENGINE TORQUE INDICATED 20 PERCENT LOWER THEN SELECTED. AIRCRAFT REJECTED TAKEOFF AND RETURNED TO BLOCK. FOUND RIGHT TORQUE INDICATOR TO BE AT FAULT. R/R INDICATOR, OPS CHECK GOOD.SDR SF8202005Indicator · faultyFLIGHT 7558 IAD-ABE, AFTER ARMING CONSTANT TORQUE ON TAKEOFF, RIGHT ENGINE TORQUE INDICATED 20 PERCENT LOWER THEN SELECTED. AIRCRAFT REJECTED TAKEOFF AND RETURNED TO BLOCK. FOUND RIGHT TORQUE INDICATOR TO BE AT FAULT. R/R INDICATOR, OPS CHECK GOOD.SDR 72383Indicator · failedUPON TAKE OFF ROLLOUT, CREW NOTICED RIGHT ENGINE TORQUE INDICATOR STUCK AT 3000LBS. ABORTED TAKE OFF AND RETURN TO GATE WITH NO FURTHER INCIDENT. THE CORRECTIVE ACTION WAS AS FOLLOWED: MAINTENANCE REMOVED AND REPLACED TORQUE INDICATOR AND TRANSMITTER.SDR ALG2005F00069Indicator · failedON CLIMB OUT FROM BASE, TORQUE GUAGE DROPPED TO 2 PERCENT. MAINTENANCE NOTIFIED. REMOVED AND REPLACED ENGINE TORQUE INDICATOR. C/W LEAK CHECK AND GROUND RUN, NOT DEFECTS NOTED. ALL WORK IAW MM. (K)SDR ALG2005F00064Transmitter · failedON CLIMB OUT FROM BASE, TORQUE GAUGE GRADUALLY DECREASED TO ZERO. MAINTENANCE NOTIFIED. REMOVED TORQUE TRANSMITTER SN 57586518, AND INSTALLED SN 57292141. LEAK AND OPS CHECK GOOD. WORK IAW MM. (K)SDR BMAC050010Connector · dirtyERATIC TORQUE +/- 4 PERCENT RT ENGINE INDICATION. MAINTENANCE CLEANED PLUG AT DELTA P/P TRANSDUCER IAW J31 MM 76-10-21, PERFORMED ENGINE RUN, OPS CHECKED GOOD AT THIS TIME.SDR 72066Indication Sys · malfunctionedON TAKEOFF ROLL OUT, CREW OBSERVED RIGHT ENGINE TORQUE NOT ABOVE 500LBS. RETURN TO GATE WITH NO FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED INDICATOR AND TRANSMITTER.SDR AMWA72057Connector · dirtyON TAKEOFF ROLL OUT, CREW OBSERVED RIGHT ENGINE UNABLE TO ACHIEVE TAKEOFF POWER. RETURNED TO GATE WITH NO FURTHER INCIDENT. THE CORRECTIVE ACTION WAS AS FOLLOWED: MAINTENANCE CLEANED AND SECURED CONNECTOR AT TORQUE INDICATOR. THEREFORE NO PARTS WERE USED.SDR ALG2005F00057Indicator · malfunctionedAT HOVER, A GUST OF WIND HIT THE AC REQUIRING MORE RT PEDAL AS A RESULT THE TORQUE REACHED 111 PERCENT FOR 1 SECOND. THE TAKEOFF WAS ABORTED AND MAINTENANCE WAS NOTIFIED. THE MECHANIC INSPECTED THE T/R GB, T/R DRIVE SHAFT DISC PACKS AND BEARINGS ALSO INPUT DSDR 200510Indicator · stuckON TAKEOFF, NR 2 TQ GAUGE STUCK AT 68 PERCENT TQ INDICATION ON BOTH ANALOG AND DIGITAL INDICATIONS. GAUGE STUCK EVEN AFTER ENGINE SHUT DOWN. PERFORMED POWER RUN AND OPS CHECK OF TORQUE INDICATION SYSTEM IAW DHC PSM 1-8-2, 77-10-00 PG 2-3. OPS CHECK GOOD.SDR ALG2005F00047Indicator · odorIN CRUISE FLIGHT, 4 MINUTES FROM LANDING, THE TORQUE INDICATOR WENT BLANK, 1 MINUTE LATER THE PILOT COULD SMELL PLASTIC BURNING IN THE COCKPIT. THE PILOT LANDED AND NOTIFIED MAINTENANCE. MECHANIC REMOVED AND REPLACED THE TORQUE GAUGE AND AC WAS RETURNED TO SSDR HNAA0500067Indicator · inoperativeNO TORQUE INDICATION ON NR 1 ENGINE. REMOVED AND REPLACED TORQUE INDICATOR.SDR KBM2005F00150Indicator · stickingTORQUE GAUGE STICKING, REMOVED AND REPLACED. (K)SDR QXEA200501085Tscu · malfunctionedRETURNED TO FIELD. ON INITIAL CLIMB-OUT, NR 2 ENGINE TORQUE SURGED TO 101 PERCENT, THEN TO 126 PERCENT. NO NOTICEABLE YAW OF AIRCRAFT, ALL OTHER INDICATIONS NORMAL. REMOVED AND REPLACED FLIGHT DATA RECORDER (980-4700-001) FOR DATA INFORMATION AND TORQUE SIGNSDR 06022005Indicator · illuminatedNO TORQUE INDICATION ON LEFT ENGINE DURING TAKEOFF ROLL.SDR ALG2005F00029Transducer · fluctuatesON TAKE OFF THE TORQUE GAUGE FLUCTUATED 60 PERCENT TO 70 PERCENT, RETURNED TO BASE AND REPORTED THE MALFUNCTION TO MAINTENANCE. MAINTENANCE CHANGED THE TORQUE PRESSURE TRANSDUCER AND OPS CHECK WAS GOOD, WORK DONE IAW MM. (K)SDR ASOA05314Pickup · inoperativeDURING CRUISE, AT 12,000 FT THE CREW FELT AND HEARD A SUDDEN LOSS OF POWER ON THE LT ENGINE. THE LT TORQUE WAS OBSERVED DOWN BY APPROX 10 PERCENT. JUST PRIOR TO INITIATION OF IMMEDIATE ACTION ITEMS THE TORQUE SLOWLY RETURNED TO NORMAL. SUBSEQUENTLY THE TORQSDR PNSA050303Indicator · inaccuratePILOT REPOTED ON TAKEOFF ROLL THE NR 1 ENGINE POWER LOW, TAKEOFF WAS ABORTED. MX FOUND THAT THE NR 1 TORQUE GAUGE WAS READING WRONG. ALSO FOUND THE NR 1 ENGINE WAS FUEL LIMITED. THE TORQUE GAUGE WAS REPLACED AND THE FUEL FLOW WAS ADJUSTED AS NEEDED.SDR PNSA050302Indicator · inaccuratePILOT REPOTED ON TAKEOFF ROLL THE NR 1 ENGINES POWER WAS LOW. TAKEOFF WAS ABORTED. MX FOUND THAT THE NR 1 TORQUE GAUGE WAS READING WRONG. ALSO FOUND THE NR 1 ENGINE WAS FUEL LIMITED. THE TORQUE GAUGE WAS REPLACED AND THE FUEL FLOW WAS ADJUSTED AS NEEDED.SDR ASOA05232Sensor · malfunctionedFLT 9953 - DURING CRUISE INTO ATL FROM MCN, JUST PRIOR TO INITIATION OF DESCENT THE CREW NOTICED THE RIGHT ENGINE BEGAN SURGING. THE CREW OBSERVED THE TORQUE NEEDLE RISE TO AT LEAST 120 PERCENT WHILE THE DIGITAL TORQUE INDICATION READ BETWEEN 0 PERCENT TO 40 SDR 05025628Engine · splitEVENT SUMMARY STATED THAT 1 N2 SPLIT AFTER TAKEOFF, READ AS HIGH AS 2.2. ALL OTHER PARAMETERS MATCHED. REMOVED AND REPLACED ENG SPEED CONTROL PANEL IAW AMM 73-21-00. OPS CHECK GOOD.SDR CA050125002Indicator · inoperative(CAN) AFTER THE AIRCRAFT WAS COLD SOAKED FOR OVER AN HOUR, THE GAGE RESPONSE WAS VERY SLOW WHILE THE ENGINE OIL TEMP WAS ALLOWED TO STABALIZE AT 60 DEG.SDR CA050125001Indicator · malfunctioned(CAN) AFTER THE AIRCRAFT WAS COLD SOAKED FOR OVER AN HOUR, THE GUAGE RESPONSE WAS VERY SLOW WHILE THE ENGINE OIL TEMP WAS ALLOWED TO STABILIZE AT 60 DEG.SDR YTRR099231Transducer · failedENGINE TORQUE TRANSDUCER FAILED.SDR RAIR00411021Indicator · inoperativeSTL - RIGHT TORQUE GAUGE DASHED LINES. MAINTENANCE PERFORMED ENGINE GROUND RUNS. OPS CHECK OK, COULD NOT DUPLICATE.SDR ALG2004F00070Gauge · overtorquedDURING TAKEOFF, TORQUE GAUGE OVERTORQUED WITH NO OTHER EXCEDENCES. THE MECHANIC DRIED THE MOISTURE FROM TORQUE TRANSMITTER, COMPLIED WITH GROUND RUN AND AIRCRAFT WAS RETURNED TO SERVICE.SDR HE66097817Torquemeter · unserviceableFLUCTUATING OVER 40 PERCENT WITH NO CHANGE IN N1 OR TOT.SDR 2005F00005Torque Sensor · inoperativeDURING TAKEOFF, LEFT ENGINE TORQUE INDICATOR NOT INCREASING. ABORTED TAKEOFF. REPLACED ENGINE TORQUE SENSOR. (M)SDR KBM2004F00228Gauge · stuckTORQUE GAUGE STUCK, REPLACED WITH SERVICEABLE UNIT. ROBBED FROM 350SH.SDR KBM2004F00230Gauge · stuckTORQUE GAUGE STUCK AT 75 PERCENT. REPLACED WITH SERVICEABLE GAUGE.SDR KBM2004F00221Gauge · stuckTORQUE GAUGE STUCK AT 70 PERCENT. REPLACED WITH SERVICEABLE GAUGE.SDR YTRR099230Transducer · failedENGINE TORQUE TRANSDUCER FAILED.SDR ALG2004F00065Warning Light · false activationARRIVED AT E1107A TO PICK UP 1 PASSENGER, LOADED PASSENGER WHILE RUNNING. COMPLETED THE PRE TAKEOFF CHECKS AND BROUGHT AIRCRAFT TO A HOVER. DURING TAKEOFF THE 1.5 SECOND WARNING WENT OFF AND NOTICED THA THE TORQUE ON THE VEMD WAS UNDERLINED AND THE NEEDLE HADSDR CA040913002Torquemeter · loose(CAN) THE RESULTS FROM A ROUTINE POWER CHECK ON ENGINE SHOWED A BAD TORQUE MARGIN. OTHER PARAMETERS WERE CONSISTENT WITH PREVIOUS POWER CHECKS. TROUBLESHOOTING REVEALED A MISPLACED OR MISSING PIN ON TORQUEMETER REFERENCE SHAFT. DURING TROUBLESHOOTING, WASHERSDR CX7A194J0449Control Unit · fluctuatesHAD TORQUE AND PROP FLUCTUATIONS AFTER DEPARTURE APPROX 1210-1280PROP/85-90 TRQ, WITH AIRPLANE YAWING TO THE RT ENGINE. LOCKED OUT TRQ MOTOR AND LANDED WITHOUT PROBLEMS. REMOVED AND REPLACED DECU.SDR 066641Indicator · inoperativeON TAKEOFF ROLL, TQ INDICATOR REMAINED AT ZERO ON THE LT SIDE. AIRCREW RETURNED TO THE GATE.
Back to JASC 7712