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 VTZA95150Tq Signal Cond · failureSYR/IAD - FLT 6362 - DURING CRUISE AT 0735 HRS ON 4-28-95, DIVERTED TO BGM DUE TO THE LT ENGINE EGT AND TORQUE FLUCTUATION. AN EMERGENCY WAS DECLARED AND THE CREW SHUT THE ENGINE DOWN IN-FLIGHT. AIRCRAFT LANDED AT BGM WITH NO FURTHER INCIDENTS. MAINTENANCE Apr 28, 1995 · N476UE · Bag JETSTM3201SDR HEEA954866Transmitter · defectiveNEEDLE HAS AN ERRATIC INDICATION.Apr 24, 1995 · N217UC · Bolkms BK117B1SDR 95ZZZX2476Transmitter · failedNR 2 ENGINE TORQUE TRANSMITTER FAILED.Apr 21, 1995 · N460H · Bolkms BK117B1SDR 95ZZZW687Connector · contaminatedFLT 4145 - ON TAKEOFF ROLL LEFT ENIGNE TORQUE INDICATION FLUCTUATED. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. PIT MAINTENANCE PERSONNNEL INSPECTED AIRCRAFT AND DISCOVERED A CONTAMINATED CANNON PLUG, LEFT ENGINE TORQUE SIGNAL CONDITIONAL. CLEANApr 21, 1995 · N856JS · Bag JETSTM3101SDR WTAA950163Tq Signal Cond · failedLAX - LEFT ENGINE TORQUE INDICATION FLUCTUATION REPORTED IN-FLIGHT. AIRCRAFT RETURNED TO STATION WITHOUT INCIDENT. MAINTENANCE REPLACED AND ADJUSTED LEFT ENGINE TORQUE SIGNAL CONDITION UNIT. AIRCRAFT RETURNED TO SERVICE. (X)Apr 17, 1995 · N428UE · Bag JETSTM3101SDR 95ZZZW685Ctot Panel · failurePILOT ABORTED TAKEOFF DUE TO CTOT SET FOR 108 PERCENT, WHEN CTOT ENGAGED THE LEFT ENGINE WENT TO 1O8 PERCENT AND THE RT ENGINE LAGGED MOMENTARILY AND THEN SHOT TO 120 PERCENT. MAINTENANCE REPLACED THE CTOT PANEL AND PERFORMED A FUNCTIONAL CHECK OF THE SYSTEM,Apr 16, 1995 · N125CH · Saab SF340ASDR 96ZZZX992Indicator · fluctuatesINDICATOR FLUCTUATES AT CRUISE.Apr 10, 1995 · N727H · Bell 206L3SDR RAIA950409Tq Signal Cond · out of adjustSTL - FLT 7058 - RIGHT ENGINE TORQUE DROPPED TO 65 PERCENT. MAINTENANCE ADJUSTED RIGHT TORQUE SIGNAL CONDITIONER. GROUND RUNS REVEALED NORMAL OPERATION. (M)Apr 9, 1995 · N423AM · Bag JETSTM3201SDR RAIA950407Tq Temp Limiter · inopMRY - FLT 4716 - LOW POWER ON RIGHT ENGINE. MAINTENANCE DEFERRED RIGHT TORQUE TEMP LIMITER PER MEL 76-2, CATEGORY C. GROUND RUNS OK. (M)Apr 6, 1995 · N864AE · Bag JETSTM3201SDR 95ZZZX2023Tq Sig Cond · failedPIT - FLT 4092 - CREW ABORTED TAKEOFF, LT ENGINE NOT PRODUCING TARGET TORQUE. RETURNED TO GATE WITHOUT FURTHER INCIDENT. PIT MAINTENANCE ADJUSTED MAX FUEL FLOW, EGT COMP RESISTOR, AND TORQUE SIGNAL CONDITIONER ALL IAW GARRETT MM 72-00-00. ALSO, CONDUCTED ENApr 6, 1995 · N853JS · Bag JETSTM3101SDR RAIA950403Tq Signal Cond · out of adjustSTL - FLT 7316 - LEFT ENGINE TEMPERATURE LIMITED AND TORQUE FLUCTUATED. MAINTENANCE ADJUSTED LEFT ENGINE TORQUE SIGNAL CONDITIONER AND CLEANED LEFT ENGINE TORQUE STRAIN GAUGE PLUG OF OIL RESIDUE. GROUND RUNS REVEALED NORMAL OPERATION. (M)Apr 2, 1995 · N436AM · Bag JETSTM3201SDR RMXA9520579Vartoms · malfunctionEXCESSIVE TORQUE SPLITS ON TAKE OFF. REMOVED AND REPLACED RPM CONTROL.Mar 26, 1995 · N317MC · Bolkms BK117C1SDR HEEA954617Transmitter · erraticERRATIC TORQUE GAUGE; FLUCTUATIONS AND VIBRATION SENSITIVE. (LOOSE PARTS INSIDE)Mar 23, 1995 · Snias AS350B2SDR HEEA954578Indicator · trips breaker#2 SIDE POPS CIRCUIT BREAKER.Mar 23, 1995 · N22608 · Bell 412SDR EGRA9516Torquemeter · defectiveTORQUE INDICATOR HAS INTERMITTENT FLAG PROBELM. REPLACED TORQUE INDICATOR.Mar 22, 1995 · N272NE · Aerosp AS365N2SDR RAIA950334Signal Cond · out of adjustSTL - FLT 7308 - LT ENGINE TORQUE DROPPED OFF LESS THAN 50 PERCENT TORQUE. MAINTENANCE RESET EGT COMPENSATOR AND ADJUSTED LT ENGINE TORQUE SIGNAL CONDITIONER. GROUND POWER RUNS REVEALED NORMAL OPERATION. (X)Mar 21, 1995 · N436AM · Bag JETSTM3201SDR SIMA950781Tq Probe · defectiveAFTER TAKEOFF FROM DFW, AIRCRAFT EXPERIENCED A NR 1 ENGINE TORQUE FLUX WITH YAW. CREW SHUT DOWN ENGINE AS A PRECAUTIONARY. REPLACED NH PROBE ON NR 1 ENGINE, PERFORMED GROUND MAINTENANCE RUNS AND PERFORMED SATISFACOTRY TEST FLIGHT. AIRCRAFT RELEASED FOR SERVMar 19, 1995 · N377AT · Aerosp ATR72212SDR 95ZZZW435Tq Ind · malfunctionedPILOT ABORTED TAKEOFF DUE TO RIGHT ENGINE WENT TO 120 PLUS TORQUE. A GROUND RUN WAS PERFORMED WITH THE CTOT SELECTED ON AND OFF. NO DEFECTS WERE NOTED ALL SYSTEMS FUNCTIONAL CHECKED NORMAL. (W)Mar 16, 1995 · N125CH · Saab SF340ASDR HERA9507Solonoid Wire · shortedFLT 1124 - AIR RETURN ENA - THE NR 1 ENGINE HAD TO BE SHUT DOWN AND SECURED DUE TO LOSS OF TORQUE AND PROPELLER RPM. THE AIRCRAFT LANDED ENA WITHOUT INCIDENT. THE BETA BACKUP AND AUTOFEATHER SYSTEMS WERE DEFERRED AND THE AIRCRAFT WAS REPOSITIONED TO ANC ON AMar 14, 1995 · N724CA · Dhav DHC6300SDR RAIA950316Signal Cond · out of adjustSTL - FLT 7088 - THE LT ENGINE ONLY ACHIEVED 82 PERCENT TORQUE. MAINTENANCE ADJUSTED TORQUE SIGNAL CONDITIONER FOR LT ENGINE. GROUND POWER RUNS REVEALED NORMAL OPERATION. (W)Mar 13, 1995 · N424AM · Bag JETSTM3201SDR VTZA95099Torque Ring Conn · dirtyCLE/IAD - FLT 6548 - DURING TAKEOFF AT 0630 HOURS ON 3-6-95, ABORTED THE TAKEOFF DUE TO THE LT ENGINE TORQUE FLUCTUATING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE CLEANED THE TORQUE RING CANNON PLUG AT THE GEAR CASE. AIRCRAFT WAS RELMar 6, 1995 · N484UE · Bag JETSTM3201SDR RAIA950304Tq Temp Limiter · intermitLAX - FLT 4706 - IN FLIGHT NR 2 ENG EGT AND TORQUE FLUCTUATES. MAINTENANCE DETERMINED TORQUE/TEMP LIMITER CAUSING FAULT. SYSTEM DEFERRED PER J32 MEL. (W)Mar 2, 1995 · N864AE · Bag JETSTM3201SDR RAIA950303Sensor · inopMEM - FLT 7146 - ON CLIMB, THE NR 1 ENGINE WOULD NOT MAKE TORQUE. MAINTENANCE REPLACED THE LT ENG OIL IMMERSED THERMAL SENSOR. (W)Mar 2, 1995 · N2FOR · Aerosp ATR42300SDR HEEA954470Torquemeter · stickingNEEDLE STICKING IN ALL RANGES. TIME SINCE REPAIR 0:00.Mar 1, 1995 · N6603X · Bell 206L3SDR 95ZZZW201Sig Conditioner · malfunctionedBNA - FLT 4686 - PILOT RT ENGINE FAILED TO RESPOND TO POWER LEVER MOVEMENTS. RT ENGINE WAS SHUTDOWN, AC RETURNED TO BNA AND LANDED WITHOUT INCIDENT. FOUND TORQUE INDICATOR CIRCUIT BREAKER TRIPPED. RESET CIRCUIT BREAKER SYSTEM OPERATIONAL CHECKED NORMAL. REFeb 28, 1995 · N940AE · Bag JETSTM3201SDR RAIA950243Signal Cond · out of adjustSTL - FLT 7086 - THE LT ENGINE TORQUE ONLY MADE 95 PERCENT. MAINTENANCE ADJUSTED LT ENGINE TORQUE SIGNAL CONDITIONER. GROUND RUNS REVEALED NORMAL OPERATION. (W)Feb 26, 1995 · N339TE · Bag JETSTM3201SDR 95ZZZX1395Torque Sign Cond · dirtyLGA/IAD - FLT 6322 - DURING CRUISE AT 910 HOURS ON 2-15-95, RT WING BOOT NR 2 SECTION WILL NOT INFLATE, AND RT TORQUE FLUCTUATED 10 PERCENT. AIRCRAFT DIVERTED TO SWF WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED LEADING EDGE ASSEMBLY AND CLEANED THE RT ENGFeb 15, 1995 · N418AW · Dhav DHC8102SDR RAIA950217Sensor · failedSTL - FLT 7484 - POWER LEVER SPLIT. MAINTENANCE REPLACED RT ENGINE T1.8 SENSOR. GROUND POWER RUNS REVEALED NORMAL OPERATION. (Z)Feb 14, 1995 · N131AM · Emb EMB120RTSDR SWIA95520Sig Cond · malfunctionedABORTED TAKEOFF. FLIGHT 242 LAX. TORQUE ON RIGHT ENGINE WENT TO 107 PERCENT AND NP DROPPED TO 17.1 PERCENT ON APPLICATION OF TAKEOFF POWER. REPLACED RIGHT TORQUE SIGNAL CONDITIONER. GROUND RUN AND OPS CKS GOOD. SEE FL 75611 FOR MECH SIGN OFF.Feb 7, 1995 · N190SW · Emb EMB120ERSDR WTAA950073BConnector · contaminatedLMT - RT ENGINE TORQUE INDICATION DROPPED TO 60 PERCENT DURING TAKEOFF ROLL. TAKEOFF ABORTED WITHOUT INCIDENT. DEFERRRED TORQUE AND TEMPERATURE LIMITING (TTL) SYSTEM PER MEL 76-2. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEANED AND REINSTALLFeb 6, 1995 · N401UE · Bag JETSTM3101SDR WTAA950073AConnector · contaminatedLMT - RT ENGINE TORQUE INDICATION DROPPED TO 60 PERCENT DURING TAKEOFF ROLL. TAKEOFF ABORTED WITHOUT INCIDENT. DEFERRED TORQUE AND TEMPERATURE LIMITING (TTL) SYSTEM PER MEL 76-2. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEANED AND REINSTALLEFeb 6, 1995 · N401UE · Bag JETSTM3101SDR WTAA950072Tq Indicator · malfunctionedFAT - LT ENGINE TORQUE INDICATION DROPPED FROM 104.5 PERCENT TO 80 PERCENT DURING TAKEOFF ROLL. TAKEOFF ABORTED WITHOUT INCIDENT. MAINTENANCE INSPECTED TORQUE INDICATION SYSTEM AND PERFORMED ENGINE GROUND RUNS. UNABLE TO DUPLICATE DISCREPANCY. NO DEFECTS WFeb 5, 1995 · N418UE · Bag JETSTM3101SDR 95ZZZX691Hose · leakingPILOT REPORTED SMOKE IN CABIN DURING HEATER OPERATION. TROUBLESHOT SYSTEM, FOUND ENGINE OIL IN HEATER. FOUND OIL LEAKING OUT OF TORQUE PSI LINE. THE OIL SPRAY WAS INJESTED BY HEATER. REPLACE TORQUE PSI LINE AND HEATER SYSTEM, CHECKED OKAY. LINE WAS MFG INJan 30, 1995 · N4667B · Cessna 208BSDR VTZA95021Sensor Wire · brokenFLT 6150 - IAD-EWR - ABORTED TAKEOFF DUE TO THE RT ENGINE IEC CAPTION ILLUMINATING ON THE TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENACNE REPAIRED A BROKEN WIRE TO THE TT2 SENSOR P/N 6945059010. AIRCRAFT WAS RELEASED AND APPROJan 12, 1995 · N311UE · Jetair JETSTM4101SDR RAIA950313Signal Cond · out of adjustSTL - FLT 7330 - THE RT ENGINE MADE TARGET TORQUE, BUT GOT AN EGT SPIKE OF 700 DEG. MAINTENANCE ADJUSTED RT ENGINE TORQUE SIGNAL CONDITIONER. GROUND POWER RUNS REVEALED NORMAL OPERATION. (W)Jan 12, 1995 · N431AM · Bag JETSTM3201SDR WTAA950041Tq Cond Sig · malfunctionedFAT - DURING CLIMB-OUT THROUGH 8,000 FEET, LEFT ENGINE TORQUE INDICATION WENT TO 104.5 PERCENT. TORQUE INDICATION REMAINED AT APPROXIMATELY 104.5 PERCENT AFTER POWER LEVER WAS RETARDED. ALL OTHER ENGINE PARAMETERS REPORTED NORMAL. AIRCRAFT RETURNED TO STATIJan 10, 1995 · N428UE · Bag JETSTM3101SDR HEEA954176Transmitter · defectivePEGS NEEDLE ON INDICATOR. TRANSMITTER RECEIVED ON AIRCRAFT N5748M ON 12-26-94.Jan 10, 1995 · N5748M · Bell 214STSDR 95ZZZW119Tq Indicator · malfunctionedTYS-DCA - FLT 3341 - ON TAKEOFF ROLL, NR 2 TORQUE INDICATOR FLUXED FULL SCALE. THE TAKEOFF WAS ABORTED WITHOUT INCIDENT. CLEANED CANNON PLUG ON TORQUE SENSOR CONTROL UNIT AND TORQUE INDICATOR, RUNUP CHECK GOOD. REMOVED AND REPLACED NR 2 TORQUE INDICATOR IN Jan 10, 1995 · N981HA · Dhav DHC8102SDR MEJA9501001Torque Ring · malfunctionedAFTER TAKEOFF IN CLIMB RIGHT ENGINE TORQUE INDICATION BEGAN TO FLUCTUATE PLUS OR MINUS 10 PERCENT. AIRCRAFT RETURNED TO SAT AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT DISCREPANCY AND FOUND A DEFECTIVE TORQUE RING. REMOVED AND REPLACED TORQJan 5, 1995 · N376PH · Swrngn SA227AC
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