JASC 7797
Service difficulty reports · 592
Reports filed under 7797 · Engine Indicating System Wiring, 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 = '7797' 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 = '7797' 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 NSVA200600171Connector · unsecureON APPLYING POWER FOR TAKEOFF AT ABOUT 75 KTS, POWER WAS SET. LEFT TORQUE INDICATION WENT TO ZERO AND L ING LIGHT CAME ON. WHEN POWER LEVERS RETRACTED BELOW FLIGHT IDLE, TRQ CAME BACK AND ING WENT OFF. INSPECTED AND RESECURED LEFT AND RIGHT TORQUE INDICATIONSDR HALA0600738Wire Harness · unknownETOPS SIGNIFICANT SYSTEM, HALFWAY THRU FLT EGT (RIGHT SIDE) DROP FROM 701 TO BETWEEN 12 AND 15 ERRATICALLY. CAME BACK ON THRU 18000 FT. SIMULATED TEMP OF 515 PER AMM 77-21-00-755-019-GOO. SHOOK WIRING CONNECTORS AT D932, D4208P, RT WING/FUSELAGE PRESS SEAL,SDR HEEA111153Connector · contaminatedDURING CRUISE FLIGHT, WHILE TRANSPORTING AN INTERFACILITY PATIENT, THE NR 2 FADEC MINOR CAUTION INTERMITTENTLY ILLUMINATED. DISCONNECTED THE NP, TORQUE, AND PMA CONNECTORS AND THEY WERE ALL WET WITH WATER. CLEANED AND DRIED THEM OFF AND APPLIED STABILANT 22 SDR HALA0600714Wire · frayedETOPS SIGNIFICANT SYSTEM - DURING CLIMBOUT R EGT INDICATION BECAME ERRATIC INDICATED FROM 800 TO 30 IN CRUIZE. EGT WOULD INTERMITTANTLY GO TO NORMAL TO 30. FOUND WIRE ON D932 CONNECTOR FRAYED ON BACKSIDE OF CONNECTOR BY BACKSIDE OF JUNCTION BOX. ACCOMPLISHED SDR CA060901009Connector · corroded(CAN) EGT INDICATION WAS ERRATIC ON LANDING. ALL OTHER PARAMETERS WERE NORMAL. THERE WAS HEAVY PRECIPITATION PRIOR TO THE ERATIC INDICATION. THE CONNECTOR PLUG WAS CLEANED AND RETURNED TO SERVICIBLE CONDITION. EGT INDICATION WAS NOT ERATIC AND AIRCRAFT RETURSDR 2006FA0000887Connector · contaminatedDEPARTED BASE, HEADED FOR THE GLACIER, EN ROUTE THE PILOT NOTICED HIS TORQUE READING WAS FLUCTUATING. THE PILOT RETURNED TO BASE AND THE MECHANIC FOUND THAT THE ENGINE DECK PLUG HAD WATER IN IT FROM THE HEAVY RAINS WE HAVE BEEN ENDURING. THE MECHANIC CLEANEDSDR HEEA110760Connector · contaminatedFLIGHT WAS CANCELLED AFTER TAKEOFF DUE TO TORQUE GAUGE READING ABOUT 20 LOW ON BOTH ENGINES. N1 AND TOT OF BOTH ENGINES SEEMED TO BE CORRECT DURING 6 MINUTE FLIGHT. MAINTENANCE CLEANED CONNECTORS TO BOTH TORQUE TRANSMITTERS. SUSPECT WATER HAD GOTTEN INTO VSDR CNMA20060017Connector · corrodedON TAKEOFF ENG 2 & 3 WOULD NOT MAKE MAX TAKEOFF THRUST. ENG FAIL LIGHT CAME ON AT APPROX 110 KTS ABORTED TAKEOFF. ALL ENG N1 INDICATIONS WERE WITHIN .6 PERCENT. NO ENG ROLLED BACK. FOUND NR 3 ENG N1 SPD SENSOR ERRRATIC / UNRELIABLE. REMOVED AND REPLACED NSDR NSVA200600104Connector · dirtyLT ENGINE OVERTEMP AT 940 DEGREES FOR A 5 SECOND DURATION AT 80 KNOTS. INSPECTED + CLEANED T4.5 TRSNER CONNECTOR. PERFORMED ENGINE RUNS WITH CREW AND NO DEFECTS IS NOTED.SDR XN0A1342Wire · pulledON TAXI OUT ENGINE VIBRATION LEVEL NR 1 ENGINE AT 78 PERCENT EXCEEDS NR 10. FOUND FAN VIBE COAX SHIELDING GROUND CABLE PULLED BACK GIVING FALSE INDICATION. RESECURED FAN VIBE COAX SHIELDING CABLE AS REQUIRED, SYSTEM OPS AND FUNCTIONAL CHECKS NORMAL IAW A300 SDR NSVA200600087Wire · malfunctionedAFTER TAKEOFF, NG FLUCTUATED ERRATICALLY BETWEEN 0-97% THEN DROPPED TO 0%. AUTO COARSEN HIGH LIGHT FLUCTUATED ON AND OFF ALSO. DURING LOW POWER SETTING NG NORMAL (LEFT NG GAUGE). REMOVED AND REPLACED CABLE ASSY (GREEN), P/N 6039T34P01, OPS CHECK GOOD. GRCSDR KPVA20067Wire · damaged(PIREP) ERRATIC TORQUE INDICATION ON NR 2 ANALOG GAUGE +/- 5 PERCENT. MX REMOVED AND REPLACED GROUNDING WIRE FROM 9811-TB62 2F TO 9811-GS37 IAW DHC-8 WIRING DIAGRAM 77-10-00 PG 1-3. ENGINE RUN UP AND OPS CHECK GOOD.SDR I5HA058003Clamp · looseWHILE IN ROUTE, THE CREW OBSERVED RT OIL QUANTITY LOW LIGHT ILLUMINATED WITH NO SECONDARY INDICATIONS. AT THE SAME TIME THE ZONE 1 FIRE WARNING SOUNDED ON THE SAME ENGINE. THECREW PERFORMED AN EMERGENCY ENGINE SHUTDOWN AND RETURNED TO DEPARTURE. INSPECTION SDR ALG2006F00013Connector · openTHE NR 2 N1 GAUGE DROPPED TO ZERO. ENGINE OUT LIGHT ILLUMINATED AND HORN SOUNDED. CLEANED CONNECTOR PLUGS WITH ELECTRICAL CONTACT CLEANER. GROUND RUN EVERYTHING CHECKED GOOD. (K)SDR QXEA200600129Connector · dirtyNR 2 FUEL TEMP FLUCTUATES RAPIDLY BETWEEN +50 DEG C ALND +99 DEG C. C/W ABNORMAL CHECKLIST BY TURNING NR 2 FUEL BOOST PUMP ON. TEMP BEGAN TO STABILIZE BETWEEN +45 DEG AND +50 DEG WITH OCCASIONAL SPIKES ABOVE +71 DEG. ALL OTHER ENGINE INDICATIONS NORMAL. MASDR ALG2006F00016Wire · chafedIN FLIGHT NR 1 ENGINE GAUGE DECREASED TO 360C. RETURNED TO BASE AND NOTIFIED MAINTENANCE. PROBLEM WAS IDENTIFIED AS A CHAFED WIRE ON THE BACK SIDE OF THE CONNECTOR PLUG. REPAIRED AS REQUIRED. (K)SDR DXTA200601190Connector · unknownLEFT ENGINE ITT FLUCTUATED APPROX 650-800 DEGREES IN TAKEOFF DETENT AT BEGINNING OF TAKEOFF ROLL. TAKEOFF WAS ABORTED. RAN ENGINES AT T/O POWER. BOTH ENGINES OPERATED NORMALLY. NO FLUCTUATION ON BOTH FADEC NOTED. GAINED ACCESS TO LEFT ENGINE FADEC REPOSITSDR AWXA200600008Terminal Block · looseLAS - AIR TURN BACK - FLT 421 - AFTER CLIMB-OUT, CREW REPORTED THAT THE NR 2 ENG OVERHEATED WITH AN EGT INDICATION OF 1130 DEG C FOR 2 TO 3 SECONDS WITH ASSOCIATED RED LIGHT. CREW REDUCED POWER AND EGT RETURNED WITHIN LIMITS. CREW RETURNED TO LAS AND LANDED SDR YENA200590Electrical Box · malfunctionedEGT IND FLUCTUATED BETWEEN 190-490 DEGREES AFTER TAKEOFF, WENT AS LOW AS 75 DEGREES DURING RETURN. T/S IAW AMM 77-21-43-05. REPLACED JUNCTION BOX IAW 77-21-43-04. OPERATED LEFT ENG AT VARIOUS POWER SETTINGS, ALL EGT PARAMETERS NORMAL. OK FOR SERVICE.SDR AU510001534Connector · looseENGINE INDICATION SYSTEM PRESSURE BULKHEAD CONNECTOR P2874 LOOSE.SDR ALG2005F00097Wire · brokenT-5 INDICATOR PROBLEM MANIFESTED DURING FLIGHT. INSPECTED SYSTEM AND FOUND BROKEN WIRE AT PIN NR 11 OF NR 2 T-5 INDICATOR CONNECTOR. REPAIRED BROKEN WIRE IAW S-76 MM. PERFORMED SYSTEM TEST USING TESTER. GROUND RUN-UP PERFORMED. NO DEFECTS NOTED. SYSTEM RSDR QXEA200501602Wire Harness · defectiveRETURNED TO GATE. NR 2 ENGINE ITT GAUGE SHOWING 265 DEGREES ON TAXI OUT. OTHER ENGINE PARAMETERS NORMAL. ITT FLUCTUATED BETWEEN 265-450 DEGREES. MAINTENANCE INSPECTED AND FOUND T6 THERMOCOUPLER TRIM HARNESS BAD. REMOVED AND REPLACED HARNESS. GROUND RAN ENGINESSDR P5CA0501415Wire · looseFLIGHT CREW REPORTED NR 3 ENGINE EGT INOP. FOUND LOOSE WIRE AT HARNESS END (PYLON CONNECTION). SECURED WIRE, ALL OPS AND INDICATIONS NORMAL IAW MM 77-00-00.SDR ALG2005F00091Wire Harness · failedIN FLIGHT, T4 PORTION OF FLI- INTERMITTENT FLUCTUATION AND T-4 FAILURE. REMOVED HARNESS SN 215B,, INSTALLED HARNESS 279B, OPERATION CHECK GOOD. (K)SDR ARWA20050911Wire Harness · damagedNR 2 EGT FAILED IN FLIGHT. REMOVED AND REPLACED EGT LEAD JUNCTION IN ACCORDANCE WITH M/M 77-21-02. SYSTEM TESTED IN ACCORDANCE WITH M/M 77-21-01 AND 77-21-00; FOUND NORMAL.SDR AWXA200501093Terminal Block · inoperativeLAS - DIVERSION - FLT 0282 - DURING CRUISE, EN ROUTE TO SJC, CREW REPORTED THE NR 2 ENGINE EGT WAS FLUCTUATING IN CRUISE WITH ALL OTHER ENGINE PARAMETERS BEING NORMAL. AIRCRAFT DIVERTED INTO LAS AND LANDED WITHOUT FURTHER EVENT. MAINTENANCE REMOVED AND REPLASDR 05FDEA02837Wire Harness · failedENGINE NR 1 EGT EXCEEDING 937 DEGREES ON TAKEOFF ALSO NOTED N1 FLUCTUATION SAME TIME. SHUT DOWN ENGINE AND DUMPED FUEL 22,000 LBS, RETURNED TO SEA. REMOVED AND REPLACED NR 1 ENG EGT THERMOCOUPLE HARNESS PER MD-10-10 AMM 77-21-01-2. OPS CHECKED NORMAL.SDR 09082005GConnector · dirtyDURING START NR 2 ENGINE NG READINGS WERE ERRATIC. DURING SECOND ATTEMPT THE START WAS NORMAL UNTIL 55 PERCENT, THEN NG DROPPED TO 0%. CLEANED AND INSPECTED CONNECTOR ON BACK OF INDICATOR AND ALTERNATOR. OPS CHECK GOOD.SDR 09022005AConnector · looseDURING NORMAL POWER REDUCTION, RIGHT TORQUE INSTANTLY DROPPED FROM 60 PERCENT TO 20 IGNITION LIGHT COMES ON AND TORQUE RECOVERED. CHECKED AND TIGHTENED CONNECTOR ON DECU, NO DEFECTS NOTED, OPS CHECK GOOD.SDR IXXA05000940Wire · damagedDURING CLIMB & CRUISE NR 2 ENGINE FUEL FLOW & EGT FLUCUATED FROM 811 TO 875, OTHER ENGINES AT 830 TO 835. EGT THEN PEAKED AT 1000 (FLASHING). ALSO WITH STANDARD POWER SET FOR CLIMB, THE EGT & FF FOLLOWED THE THROTTLE & THEN THE FUEL FLOW & EGT WENT HIGH & DISDR MFSDR0501Wire · burnedTACHOMETER FULL SCALE DEFLECTION ON ANALOG NEEDLE WHEN POWER SELECTED AND LOW ANALOG READING ON EGT. PROBLEM TRACED TO ROUTING OF BOTH CABLES THROUGH A FIRESLEEVE OVER THE TURBOCHARGER. THE FIRESLEEVE HAS BUNED AWAY, LOSING ITS FIRE RESISTANT QUALITIES AND CAUSDR IXXA0500083OWire Harness · defectiveDURING TAKEOFF FROM KTOL BOTH EGT INDICATIONS ON NR 2 ENG BECAME ERRATIC. INFLT-ANALOG WENT OFF SCALE HIGH AND DIGITAL SHOWS 1000 INTERMITTENTLY. THE CREW RETURNED THE AIRCRAFT TO KTOL AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED EGT HARNESS, RAN ENGINSDR IXXA0500082OWire Harness · defectiveDURING TAKEOFF FROM KTOL TO KATL AFTER V1 NR 2 EGT STARTED TO FLUX FROM 860 TO MAX EGT 1000 (DIGITAL AND POINTER) CONTINUED TO FLUX ON CLIMB-OUT. ALL OTHER ENGINE INDICATIONS WERE NORMAL. THE CREW ELECTED TO OVERFLY INTERIM STOP ATL AND FLY DIRECT TO KMCO. SDR 05FDEA01996Wire Harness · chafedENG NR 2 EGT ANALOG INDICATION CONSTANTLY SWINGS BETWEEN 440 DEG C TO 460 DEG C IN CRZ. NR 1 EGT STABLE AT 450 DEG C. ENG NR 2 EGT INDICATION ERRATIC AS WELL DURING APPROACH. T/S IN PROGRESS. PERFORMED T/S ACC TO TSM 77-21-00 AND AMM 77-21-03-5-A. FOUND ESDR GTIA050196Wire · failedFLT 461 - DURING CREW PREFLIGHT, FOUND NR 2 EPR GAUGE FLAG IN VIEW, AIRCRAFT TAIL SWAP WITH 829. REPAIRED WIRES AND REMOVED AND REPLACED TRI CONNECTOR, OPS CHECK GOOD. (M)SDR 2005FA0000614Connector · looseTACHOMETER INDICATION JUMPS AROUND IN FLIGHT. INSTALLED A NEW TACHOMETER CONNECTOR, IAW MFG SL. OPS CHECK OK. (CE07200512734) (K)SDR HNAA0500028Wire · damagedRT AC BUSS LIGHT ILLUMINATED IN FLT WITH ASSOCIATED RT TRU, RIGHT ELEVATOR HEAT AND RIGHT STALL WARNING. REMOVED AND REPLACED CONNECTOR 2421-P6 AT A/C CONTACTOR BOX, REPLACED WIRES 2022B22, 2023B22, 2021B22, 2024B22, 10024G22, 10023G22, 10022G22, 10021M22, 20SDR 2005FA0000611Pin · looseG-1000-3 PIN CONNECTOR FOR MANIFOLD PRESSURE TRANSDUCER, THE PINS WILL GET LOOSE AND CAUSE THE MANIFOLD PRESSURE INDICATION TO JUMP FROM 7.7 TO 55 MP PSI. TROUBLESHOT, WITH THIS IN THE FUTURE DUE TO VIBRATION OF AIRCRAFT. NOTE: NEVER HAD A RED-X OVER MP INDISDR 2006FA0000181Connector · disconnectedPLASTIC CONNECTOR THAT CONNECTS TO TACHOMETER TRANSDUCER HAS NO LOCKING DEVICE, THIS TYPE OF CONNECTOR SHOULD HAVE A SNAP LOCK AT THE END OF IT THREAD TRAVEL. FOUND THIS SAME SIMILAR PROBLEM ON 2 OTHER SINGLE ENGINE AIRCRAFT WITH THE SAME TRANSDUCERE. ALSO HSDR COE2005F00000Wire Harness · inoperativeNR 2 TGT FLUCUTATED BETWEEN 0 AND 600 DEGREES IN FLIGHT. AIRCRAFT RETURNED TO AIRPORT. NO EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. FOUND BROKEN WIRE ON CONNECTOR PLUG BACKSHELL AT FIREWALL. ENTIRE HARNESS WAS REPLACED. AIRCRAFT WASDR 04311677Wire Harness · damagedEVENT SUMMARY STATED THAT RIGHT ENG N1 DROPPED ON T/O ROLL. REMOVED AND REPLACED RIGHT ALTERNATOR IN REF TO SPEC PROC 10 GE MM 72-00-00. REMOVED AND REPLACED RIGHT ENGINE BLUE HARNESS IN REF TO CRJ MM 77-11-03.SDR 2004UALA00891Wire Harness · failedRIGHT ENGINE EGT INDICATION PROBLEMS. RIGHT ENGINE EGT INDICATION VERY ERRATIC. FLIGHT 0945-03 FRA-ORD, DIVERTED TO LHR. WIRING CHECKS PIN-TO-PIN, AND PIN-TO-GROUND ACCOMPLISHED OK. CONTINUITY CHECKS NORMAL. REPLACED WO623 HARNESS PER AMM 73-21-73. (PW ISDR ABXA040334Wire Harness · burnedDURING LINE MAINTENANCE INVESTIGATION OF NR 3 ENGINE EPR PROBLEM, FOUND THE EPR WIRING HARNESS, THRUST BRAKE WIRING AND THRUST REVERSER EMERGENCY DUMP VALVE WIRING CHARRED AND FRAYED DUE TO A PREVIOUS PNEUMATIC DUCT LEAK. REPLACED WIRE NR 3H406E24, 3H2156B24,SDR ABXA040333Wire · frayedDURING LINE MAINTENANCE, FOUND NR 3 ENGINE EPR WIRING HARNESS CHARRED AND FRAYED DUE TO PREVIOUS PNEUMATIC LEAK. REPLACED NR 3 ENGINE EPR WIRES 7E57SA24N AND 3E573A24N BETWEEN CONNECTOR P1-1449 AND GROUND 825.SDR 04243424Wire Harness · defectiveABNORMAL N2 INDICATIONS ON THE RT ENGINE DURING TAKEOFF. ABORTED TAKEOFF AT 65 KNOTS. MX REMOVED AND REPLACED OUTER WIRING HARNESS IAW JIC 73-20-04.SDR AWXA200400838Connector · damagedABORTED TAKEOFF, ON TAKEOFF ROLL, ENROUTE, HAD NR 2 ENGINE EGT INDICATION OF 1250 DEGREE (C), REJECTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE REPLACED NR 2 ENGINE EGT CONNECTOR (D3304) AT ENGINE FIRE WALL. PERFORMED HIGH POWER ENGINE RUN, OPERATIONAL CHECK SDR COMA0460419Wire Harness · defectiveFLIGHT 5541 RIGHT ENGINE N1, ITT, AND N2 SURGING. REPLACED THE ENGINE BLUE WIRE HARNESS.SDR CA040709004Wire · cut(CAN) IN FLIGHT, THE PILOT NOTICED THAT THE LT ENGINE CYLINCER TEMPERATURE WAS ABNORMALLY HIGH. ALL OTHER PARAMETERS WERE IN THE GREEN. THE PILOT ASKED FOR A PRIORITY LANDING. WE DISCOVERED THAT THE WIRING FOR THE CHT PROBE WAS CUT. THE TERMINAL WAS REPLACESDR HEEA096020Wire · burnedNR 2 ENGINE HAD RUNAWAY BEEP CAUSING A 30 PERCENT TORQUE SPLIT. RETARDED NR 2 THROTTLE TO 38 PERCENT TORQUE AND LANDED. MAINTENANCE FOUND THE WIRES FOR THE NR 2 NS BEEP MOTOR RUNNING BETWEEN CONNECTORS P314 AND P104 TO BE BURNED AND CHAFED AT FUSELAGE STATIOSDR MASA200400290Wire Harness · inoperativeDURING TAKEOFF ROLL A NR 1 ENGINE N2 VIBE ICON ILLUMINATED CAUSING THE PILOT TO ABORT TAKEOFF. DURING TROUBLESHOOTING IT WAS DETERMINED TO BE AN INDICATION ONLY AND PLACED ON MEL. MX REPLACED WIRE HARNESS AND TRANSDUCER.
Back to JASC 7797