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 SAJF2011042600011Wire Harness · damaged(B-18605) DURING T/O ROLL, NR 1 ENGINE EGT RAISED TO AROUND 950 DEGREE C, ACFT ABORTED TAKEOFF. BITE TEST AND RESISTANCE CHECK FOUND LT BOTTOM EGT PROBE INDICATION WAS ABNORMAL. EGT PROBE (PN:TC296-02) AND HARNESS (PN: 325-025-401-0) WAS REPLACED. ENGINE RUNSDR FDEA201104201537Lead · failedNR 3 ENGINE EGT EXCEEDED, 35 MINS AFTER T/O AT FL 320, ATS SELECTED, CLIMB PWR, TO CLIMB TO FL 340. LVL 1 ALERT ENG 3 EXCEDENCE EGT 1056 AMBER, EGT CLIMB POWER NORMAL AT 840C EGT FLUCTUATED. N1 N2 FF STEADY. NR 3 ENG IDLE, EGT STARTED FLUCTUATING & CLIMBED TSDR 2011FA0000242Connector · dirty.3 HRS INTO HIS TOUR FLIGHT THE PILOT HAD AN ENGINE CHIP WARNING LIGHT. HE MADE AN UNEVENTFULL UNSCHEDULED LANDING. AT ARRIVAL MX FOUND NO CHIP LIGHT ENGINE OFF. MX FOUND (1) 1.5 MM FILAMENT LEVEL "A" ON THE UPPER ELECTRICAL PLUG ALL OTHER PLUGS WERE CLEAN.SDR CA110324004Receptacle · contaminated(CAN) AFTER DEPARTURE, THE AIRCRAFT BEGAN EXPERIENCING PROBLEMS WITH THE RIGHT SIDE EGT INDICATION IN NORMAL AND STANDBY. RIGHT HAND EGT ON UPPER EICAS AND STANDBY ENGINE INDICATOR WENT BLANK ON CLIMB OUT. OCCASIONALLY EGT WOULD INDICATE BUT ERRONEOUSLY. CREW SDR CA110331007Wire Harness · damaged(CAN) ABORTED T/O UPON APPLYING POWER FOR T/O, THE ENGINE TEMPERATURE REACHED 800C BEFORE THE THROTTLE MAX STOP WAS REACHED. ALL OTHER PARAMETER WERE NORMAL. THE T/O WAS ABORTED AT A SPEED OF 70KTS. TROUBLESHOOTING IS ON-GOING AND FOCUSING ON A POSSIBLE INDISDR IXXA110023OWire Harness · defectiveDURING CLIMBOUT FROM KTOL NR ONE EGT ANALOG AND DIGITAL READ OUTS DROPPED FROM 700 DEGREE TO 420 DEGREE WITH FLUCTUATION PLUS/ MINUS 5 DEGREE, N1 AND N2 SIMILAR TO THE OTHER 3 ENG. ALL 4 THROTTLES WERE ALIGNED. THE CREW RETURNED TO DEPARTURE WITHOUT FURTHER SDR VNAA2011020900002Wire Harness · pinchedON DEPARTURE AND INITIAL CLIMBOUT FROM DAY, CREW REPORTED THE ENGINE NR 2 VIBRATION GAUGE SHOWED AMBER DASHES WITH VIB INDICATION ON THE N2 GAUGE. CREW RETURNED TO DAY AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED AND REPLACED THE HARNESS FORSDR MYWA110009Connector · dirtyETOPS SIGNIFICANT SYSTEM: ON DESCENT NR 2 ENGINE VIBRATION MONITOR FLUCTUATES BETWEEN .5 AND MAX OF 5. PERFORMED BITE CHECK OF AVMS, CHECKED SENSORS, WIRING, CLEANED CONNECTORS AND RAN ENGINE. COULD NOT DUPLICATE PROBLEM.SDR 5APR577Y50Wire · broken(5APR) ORIGINAL FLIGHT DIVERTED DUE TO PILOT REPORT OF "ERRATIC TORQUE INDICATION WITH ALL OTHER INDICATIONS NORMAL" T/S TORQUE INDICATION SYS AND FOUND WIRE BUNDLE TO TORQUE TRANSDUCER WITH A BROKEN WIRE TO PIN "C" (WIRE IDENTIFIER 4K17B24) AT 1.125 INCHES BSDR AALA20101127MIA03Wire Harness · defectiveMIA - CREW REPORTED ON CLIMBOUT RIGHT ENGINE EGT BECAME ERRATIC. EMERGENCY DECLARED FLIGHT RETURNED MIA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED NUMBER 2 ENGINE HARNESS AND LOWER RIGHT PROBE. SYSTEM GROUND CHECK NORMAL OPERATION.SDR ASAA1058491Wire Harness · damagedNR 1 ENGINE WIRING HARNESS CJ9 HAS DAMAGE TO THE OUTER CLOTH LAYER AT THE 2 O'CLOCK POSITION. REPAIRED HARNESS CJ9 IAW 737 AMM 70 70 01 350 801 100. THIS REPAIR IS TEMPORARY UNTIL THE NEXT ENGINE SHOP VISIT.SDR ASAA1058328Wire Harness · damagedNR 1 ENGINE SHOWS LONG TERM FAULT CODE 77 20871 "TOP LEFT EGT SIGNAL IS OUT OF RANGE" LOGGED FOR NINE OF THE TEN LEGS IN EEC MEMORY. ACCOMPLISHED FIM TASK 77-21-00-810-804-F00 CLEANED EGT REF AMM 77-2100. CHECKED RESISTANCE OF HARNESS. (DP1011). RESISTANCE SDR UALA2010100403663Wire Harness · faultyENG EEC C1 R RT ENGINE CONTROL IS IN A TIME LIMITED DISPATCH CONDITION. ENGINE CONTROL SYS IS OPERATING WITH REDUCED REDUNDANCY. T3 THERMOCOUPLE SIGNAL IS STILL FAULTING AFTER T3 TC WAS REPLACED ON 14SEP, NO HELP. REPLACED HARNESS. ALSO REPLACED T3 SENSOR ASSDR ASAA1058309Wire Harness · corrodedGE DIAGNOSTICS REPORTS NR 1 ENGINE TREND DATA SHOWS A SUDDEN SHIFT IN EGT HOT DAY MARGIN ALL OTHER PARAMETERS NORMAL. EGT INDICATION ERRORS ARE SUSPECT. PERFORMED FMC CDU FAULT TC 78273000 NO RECENT FAULTS FOUND. FOUND CJ10 HARNESS S3-S4 CONNECTORS HAD CORRSDR QMLA2010092910064Connector · contaminatedTHE MECHANIC NOTED THAT THE EXTERNAL DRAIN/DUCT WAS CLOGGED BY INSECTS AND DEBRIS CAUSING WATER TO INTRUDE INTO THE CABIN AND ONTO THE VEMD. THE MECHANIC CLEANED OUT THE DRAIN/DUCTING AND DRIED OUT ALL OF THE INSTRUMENTS AND ELECTRICAL CONNECTOR PLUGS. A GROSDR QXEA2010092100547Connector · damagedNR 2 FUEL TEMP FLUCUATES BETWEEN 60-99C, WITH OCCASIONAL DASH LINES REPLACING THE TEMP READING. RETURNED TO FIELD. LANDING UNEVENTFUL. INSPECTED HARNESS TO TEMP SENSOR AND FOUND IT TO BE TIGHT, DISSASSEMBLED CONNECTOR PLUG AND DISCOVERED WIRE SEPARATED FROM SDR REXA201000121Wire Harness · defectiveON TAKEOFF ROLL AT KCVG, THE LEFT ENGINE ITT INDICATED AN OVER TEMPERATURE WHEN TAKEOFF POWER WAS SELECTED. A GATE RETURN WAS ACCOMPLISHED AND THE AIRCRAFT SWAPPED OUT. MAINTENANCE FOUND THE INBOARD ITT THERMOCOUPLE HARNESS BAD. THE THERMOCOUPLE HARNESS WASSDR ASAA1058197Wire Harness · shortedGE DIAGNOSTICS REPORTS NR 1 ENGINE TREND DATA CONTINUES TO SHOW A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACCOMP T49.5 & EGT SYSTEM INSP ALL RESISTANCES ARE WITHIN LIMITS. WHILE TESTING FOUND CJ10 (PD1011) SHORTED AT PINSDR HALA2010072600334Electrical Box · unknownETOPS SIGNIFICANT SYS - REPEAT WRITEUP- NBR 2 EGT INDICATIONS ERRACTIC AFTER TAKEOFF UNTIL 10000 FT. ALL OTHER ENGINE INDICATIONS NORMAL. NR 2 EGT STABILIZED AND NORMAL AT 10000 FT AND THROUGHOUT THE FLIGHT. FLUCTUATE 20 TO 820 DEG. FIXED AT 10000 FT/24 C SDR HALA2010072500326Electrical Box · malfunctionedETOPS SIGNIFICANT SYS - NR 2 EGT DROPPED TO 16 DEG IN CLIMP, WITH ALL OTHER ENGINE READINGS NORMAL (BOTH EICAS AND STBY ENGINE GAUGES) EGT RESUMED NORMAL DISPLAY ABOUT AFTER TAKEOFF. PERFORMED FIM 77-21-00, FIG 103 INSPECTED THERMOCOUPLE PROBES NO DEFECTS NOTSDR FDEA201007152569Wire Harness · failedON CLIMB OUT PASSING FL 290, NR 2 ENGINE EGT COMPLETELY FAILED ( BOTH DIGITIAL AND ANALOG ) WITH - 2 PERCENT N1 AND N2 FLUX WITH - 200 POUNDS FUEL FLOW FLUX. UPON LANDING AT MEM - BOTH EGT'S WORKED NORMAL. R & R NR 2 ENG LOWER AND UPPER EGT HARNESSES IAW ASDR USAA20100707SB111Connector · faultyMCO - ON CLIMBOUT FROM MCO, PASSING 12,000 FEET, THE NR 2 ENGINE EGT GAUGE WENT TO 1250 DEGREES C. CREW PULLED POWER LEVER BACK AND LIGHT WENT OUT WITH CORRESPONDING DECREASE IN EGT. WHEN POWER LEVER WAS PUSHED FORWARD, EGT WENT BACK UP TO 1250 DEGREES C. CSDR ASAA1058020Connector · dirtyWHILE ACCOMPLISHING TASK CARD 78273000 FOUND MAINT MESSAGE 77 10842. TOP RIGHT EGT SIGNAL (T495S1) IS OUT OF RANGE NR 2 ENGINE. MAINT MESSAGE 77 10842 IS A LONG TERM FAULT TO BE REPAIRED WITHIN 450 FLIGHT HOURS. AUTHORIZED BY SEAMC. ON DEFERRAL. CONFIRMEDSDR DXTA2010062504131Wire Harness · faultyLEFT ENGINE ITT SPIKED TO 800° IN FLIGHT. TRIED TO CONTROL TEMP WITH THROTTLE, BUT WHEN WE DESCENDED TO 5000', ITT EXCEEDED 760°. SHUTDOWN ENGINE, BUT ITT NEVER DROPPED BELOW 500° - EVEN WHEN ON GROUND. FOUND T1 SENSOR HARNESS OUT OF LIMITS AND ERRATIC. INSTSDR SWAA102975Connector · faultyAIR TURNBACK / INFLIGHT SHUTDOWN. DURING CLIMBOUT AROUND 15,000, NR 2 ENGINE EGT OVERTEMP LIGHT ILLUMINATED, EGT SHOWED 1250 DEG, SHUT DOWN NR 2 ENGINE. REMOVED AND REPLACED ENGINE EGT DISCONNECT CONNECTOR PER MM.SDR ASAA1057847Wire Harness · damagedWHILE ACCOMPLISHING T/C 78273000 NR 2 ENG FMC CDU FAULTS FOUND FAULT CODE 77 10852 BOTTOM RT EGT SIGNAL OUT OF RANGE (T49552) ON 5 OUT OF 10 FLT LEGS. IN FLIGHT HISTORY LONG TERM FAULT. FOUND CJ9 HARNESS HAS WORN PINS AT DP0913 FOR T495S2. REMOVED AND REPLASDR FDEA201005121519Wire Harness · damagedON CLIMB OUT OF ANC - NR3 ENGINE EGT GAGE FLUCTUATED WILDLY OUT OF 20,000 FT HIT 1020 GOT "ENG 3 EXCEEDANCE ALL ENG 3 OIL, TEM, PRESSURE SHOWED NORMAL DUMPED FUEL RETURNED TO DEPARTURE. ANC R EGT INDICATION NORMAL AFTER SHUTDOWN, VISUAL INSP OF HARNESS ASDR HALA2010051100209Wire · damagedATB: DURING CLIMB ENG RT SYS FAIL ILLUMINATED. RETURNED HNL PER DISPATCH AND MOC. FOUND FAULT (772263) ACCOMPLISHED FIM 77-22 TASK 803. REPAIRED WIRING AT TURBINE BRG O/H SENSOR. ENG RUN-UP OPS CHECK GOOD.SDR ASAA1057701Wire Harness · no testNR 2 ENGINE PERFORMED TASK CARD 78273000 HAD FAULT CODE 77 20872 LONG TIME FAULT, THE TOP LEFT EGT SIGNAL (T495S4) IS OUT OF RANGE. VERIFIED EGT PROBE S4 AND HARNESS CJ10 TO BE BAD REPLACED IAW MM 77 21 00, ALL GROUND VERIFICATION TESTS PASS.SDR ASAA1057617Wire Harness · faultyNR 2 ENGINE TREND DATA CONTINUES TO SHOW ERRORS INDICATIVE OF EGT INDICATION SYSTEM ANOMALIES. ALL OTHER PARAMETERS ARE NORMAL. COCKPIT INDICATION IS STILL WITHIN RANGE. REPLACED LOWER LEFT EGT PROBE T495S3 AND PROBE T495S1 PER MM 77 21 01 000 801 / MM 77 2SDR AALA20100308LGW01Connector · misalignedMAD - RIGHT EICAS AND SECONDARY EXHAUST GAS TEMPERATURE INDICATION FLUCTUATING TO FULL SCALE DEFLECTION. FLIGHT RETURNED MAD LANDED WITHOUT INCIDENT. FOUND MISALIGNED CONNECTOR (9 O`CLOCK POS) ON EGT JUNCTION BOX. CLEANED AND RE-SECURED JUNCTION BOX CONNECTSDR HNAA2010022400026Connector · dirtyNO DIGITAL OR ANALOG TORQUE INDICATION ON NR 1 ENG DURING TAKEOFF ROLL, ALL OTHER PERAMITERS NORMAL. REMOVED CONNECTOR PLUG FROM NR 1 ENG TORQUE PROBE, CLEANED AND REINSTALLED, GROUND RAN ACFT WITH CREW, INDICATION OPS CHECKED NORMAL AT THIS TIMESDR FDEA201001190177Wire · damagedACFT AIR TURNBACK, NR 2 EGT SHOWED AMBER "X"ON CLIMBOUT. SPORADICALLY CAME BACK WITH ERRATIC READINGS. RTB AFTER CONFORMATION WITH MOCC. REMOVED AND REPLACED AIU'S 1 & 3. WAITING HIGH POWER RUN. REPAIRED WIRE 2H2704F22 GOING TO R5-8212 PIN B WITH BLUE SPSDR UALA2009120203714Connector · dirtyON ENGINE START LEFT ENG N1 JUMPS TO MORE THAN 80 PERCENT CAUSING TAKEOFF WARNING TO SOUND WITH CONFIG WARNING FOR 2 SECONDS. UPON ARRIVAL CREW REPORTED THIS IS REPEAT OCCURRENCE (HIT LAX-891-29NOV), AT ENG START AS SOON AS N1 JUST BEGINS T O ROTATE, N1 IND JSDR DXTA2009120103874Wire · looseAFTER ROTATION, PASSING 300' AGL, NR 1 ITT INDICATOR WENT INTO RED, SHOWED APPROX 1100 DEG C. REDUCED PWR BELOW 74 PERCENT N1. ITT CAME OUT OF RED BUT THEN INCREASED BACK ABOVE RED LINE. PWR FURTHER REDUCED TO JUST ABOVE IDLE. ITT THEN CAME BACK WITHIN LIMISDR AALA20091118DFW05Connector · failedON CLIMBOUT CABIN ALTITUDE BEGAN TO CLIMB. BEGAN DESCENT AND REGAINED CONTROL OF CABIN PRESSURE. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND INTERMITTENT N3 INDICATION FROM RIGHT ENGINE. REPLACED NUMBER TWO ENGINE N3 TACH GENERATOR PLUG.SDR DXTA2009120703885Wire Harness · chafedDURING UNSCHEDULED MX, DISCOVERED A WIRE BUNDLE CHAFING TO THE POINT OF COPPER WIRING EXPOSED FOR THE N1 INDICATING SYS. ALSO, CONDITIONED AIR TUBING CHAFED (HARD LINE) BY FLEX DUCT AS WELL AS A SERVICE AIR LINE CHAFED. ALL DAMAGE IS IN THE HELL HOLE, BELOW SDR HALA2009102800490Connector · damagedETOPS SIGNIFICANT SYS - EICAS MSG 'L GEN DRIVE' DISPLAYED INTERMITTENTLY BELOW 15,000 FT IDG OUT/ RISE TEMPS WERE NORMAL55/11 DEGREES. REPLACED LT ENG IDG IAW AMM TASK 24-11-01-004-001 AND 24-11-01-404-34. NO HELP. T/S IAW WDM 24-11-11 FOUND PIN 6 OF CONNECSDR HALA2009102700491Terminal · looseETOPS SIGNIFICANT SYS - FOUND ON OVERNIGHT CK RT PIMU MSG ON EICAS MAINT LEVEL MSG. RT PIMU FAULTS CHANNEL A AND B T5 CROSS CK FAIL. T/S IAW FIM PIMU MESSAGE INDEX FOR PIMU MESSAGE 353-19. RETORQUED CONNECTIONS AT EGT TT4.95 THERMOCOUPLE BOX. PERFORMED REPASDR HALA2009102700485Connector · undertorquedETOPS SIGNIFICANT SYSTEM - FOUND ON OVERNIGHT CK RT PIMU MSG ON EICAS MAINT LEVEL MSG. RT PIMU FAULTS CHANNEL A AND B T5 CROSS CK FAIL. T/S PER FIM PIMU MESSAGE INDEX FOR PIMU MESSAGE 353-19. RETORQUED CONNECTIONS AT EGT TT4.95 THERMOCOUPLE BOX. PERFORMED REPSDR IXXA090064OWire · burnedDURING CLIMB OUT FROM TAPA NR 4 ENG EPR INOP, NR 4 GENERATOR CAUSED A MOMENTARY LOSS OF ALL POWER THEN LOCKED OUT-SHORTLY AFTER ZOLTS AND FREQUENCY WENT TO ZERO, AND NR 4 ENG BEGAN TO SPARK EVERY 25 SECONDS THE CREW SHUTDOWN NR 4 ENG. THEY RETURNED TO TAPA WISDR ASAA0956859Wire Harness · faultyWHILE PERFORMING TC 78273000 ENG FMC CDU FAULTS FOUND FC 77 10842, TOP RIGHT EGT SIGNAL T495S1 IS OUT OF RANGE. FOUND HIGH RESISTANCE & CORROSION ON TOP RT T495 PROBE & CONN DP0912. CLEANED CORROSION & REPLACED TOP RT NR 2 ENG T495 PROBE REF MM 77 21 01. PRSDR AALA20090915LAS01Connector · faultyAFTER TAKEOFF TOWER REPORTED MORE THAN USUAL EXHAUST ON L. ENGINE ALSO N-3 FLUX + OR (-) 6 PERCENT ALL OTHER NUMBER ONE ENG INDICATIONS NORMAL-CLIMB POWER. RETURNED TO LAS AND LANDED WITHOUT INCIDENT. REPLACED N3 TACH GENERATOR PER MM 77-12-02-4, REPLACED N3SDR FDEA200909053259Lead · failedENG 2 EGT HI" LEVEL ONE ALERT DURING DESCENT. EGT WAS 1092 IN RED.MOVED THROTTLE TO IDLE, APPROX 20 SECONDS LATER ALERT CHANGED TO LEVEL 1 "ENG 2 EXCEEDAMCE", TEMP INDICATION DECREASED TO AROUND 900. APPROX 10 SECONDS LATER TEMP INCREASED ABOVE RED LINE WSDR UALA2009072902266Wire Harness · shortedLEFT ENG EGT FLUCTUATION, ABORTED TAKEOFF. DUPLICATED EGT FLUCTUATION BY WIGGLING HARNESS. REPLACED HARNESS AND TEST SYS. REPLACED LT EXTENSION HARNESS, LWR LT THERMOCOUPLE HARNESS AND PROBES. RAN ENG, NO FLUCTUATING. OK FOR SERVICE.SDR C8GA20090108Connector · dirtyFLT 724 FROM TOL TO EWR ON TAKE OFF ROLL THE NR 3 ENGINE EGT INDICATOR WENT TO ZERO AND BECAME INTERMITTENT. AIRCRAFT ABORTED TAKE OFF AND RETURNED TO THE BLOCKS. POST FLIGHT INSPECTION WAS PERFORMED, CLEANED CONNECTORS AT JUNCTION BOX, CLEANED AND TIGHTENED ESDR 2009FA0000885Connector · mismanufacturedENGINE EXPERIENCED INTER TURBINE TEMP (ITT) INDICATION FAULT. DURING TROUBLESHOOTING OF FAULT, FOUND THE AIRFRAME TO ENGINE ELECTRICAL HARNESS (PN PCS06E880S) (362) CONNECTOR DEFECTIVE. PRUCHASED NEW CONECTOR. DURING PRE INSTALLATIONOF THE NEW CONNECTOR IT SDR NSVA2009030Wire Harness · unknownLT TORQUE INDICATION WAS AT 0 PERCENT ON APPLYING POWER ON TAKEOFF ROLL IN TAKEOFF CONFIG. ALL OTHER PARAMETERS NORMAL. REMOVED AND REPLACED THE BLUE HARNESS, OPS CHECK GOOD.SDR IXXA090028OCable · defectiveDURING CLIMB-OUT FROM KTOL NUMBER TWO ENGINE EGT WENT TO 914 DEGREE FOR TWO TO FIVE SECONDS. THE CREW RETARDED THE THROTTLE AND EGT INDICATOR DECREASED AND ALL OTHER ENGINES PARAMETER WERE NORMAL. THE CREW RETURNED TO KTOL AND LANDED WITHOUT FURTHER INCIDENTSDR VNAA2009042800017Wire Harness · defectiveCREW REPORTED RT ENGINE ITT SPIKED HIGH INTO RED INTERMITTENTLY. AIRCRAFT RETURNED TO CLT WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED RT ENGINE OUTBOARD ITT THERMO COUPLE HARNESS PER AIRCRAFT MAINTENANCE MANUAL. CHECKS WERE MADE PER THE AIRCRAFT MAIN
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