JASC 7722
Service difficulty reports · 1,199
Reports filed under 7722 · Engine EGT/TIT Indicating System, 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 = '7722' 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 = '7722' 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 CHQA20000013Harness · brokenCREW RETURNED TO THE FIELD AFTER THE LEFT ENGINE EGT STARTED TO FLUCTUATE. MAINTENANCE GROUND RAN WITH SRL OFF, NO FLUX NOTED. THE SYSTEM WAS DEFERRED. THE SYSTEM WAS INSPECTED AND FOUND A WIRE BROKEN AT THE ENGINE EGT SHORT LEAD. THE WIRE WAS REPLACED, ENSDR SWAA001282Indicator · malfunctionedAIR TURNBACK, NR 1 ENG EGT INDICATOR INOP. REMOVED AND REPLACED NR 1 ENG EGT IND PER MM.SDR CHQA20000003Gauge · failedFLIGHT CREW RETURNED TO THE FIELD AFTER THE LEFT ENGINE EGT GAUGE INDICATION DROPPED TO ZERO. THE LEFT EGT GAUGE WAS REPLACED, GROUND RAN WITH ALL INDICATIONS NORMAL.SDR SWAA001158Indicator · erraticABORTED TAKE-OFF. NR 2 ENGINE EGT INDICATOR LIGHT ILLUMINATED, MOVED THROTTLE TO IDLE POSITION AND EGT INDICAOR ERRATIC. INSPECTED NR 2 ENGINE INLET AND TAILPIPE SECTIONS. OPERATED ENGINE, NO DEFECT FOUND. COULD NOT DUPLICATE.SDR AU000494Indicator · fluctuates(AUS) NR 1 ENGINE TGT SYSTEM TERMINAL LOOSE AT FORWARD PYLON BREAK.SDR RAIA0006015Gauge · failed7330-STL- CCAS WARNING ILLUMINATED FOR RIGHT ENGINE. MAINTENANCE INSPECTED AND DEFERRED PER MEL. MAINTENANCE REPLACED RIGHT ENGINE ITT GAUGE.SDR 20000620SH007Harness · shortedRIGHT ENGINE ITT READING LOW IN ALL CONDITIONS OF OPERATION. DETERMINED PROBLEM TO BE AN INTERNAL SHORT IN THE TRIM HARNESS ON THE RIGHT ENGINE. REPLACED TRIM HARNESS WITH SERVICEABLE TRIM HARNESS AND CALIBRATED ITT AIRFRAME SYSTEM RESISTANCE. INSPECTED ENGSDR RAIA0005031Resistor · failed7176-STL- LEFT ENGINE OVERTEMP DURING TAKEOFF ROLL. MAINTENANCE INSPECTED OVERTEMP FALLS WITHIN MAINTENANCE MANUAL LIMITS, MAINTENANCE REPLACED LEFT ENGINE T6 TRIM RESISTOR.SDR 20000602SH009Indicator · malfunctionedH.A.S. REPLACED WITH NEW MGT INDICATOR FROM BELL HELICOPTER. (X)SDR MALA000337Indicator · failedDURING LC-1 NOTED RT ENGINE ITT INDICATION READS 10 DEGREES LOWER THAN LT ENGINE. ALSO, NOTED RT ENGINE ITT MARGIN TRENDING. MX VERIFIED RT INDICATOR READS LOW. REMOVED AND REPLACED RT ENGINE ITT INDICATOR (P/N 523347). OPS CHECK GOOD.SDR FWT2001F00004Indicator · faultyON CLIMB OUT, NR 3 EGT STARTED TO RISE AND REACHED TEMP LIMIT. WITH POWER LEVER BACK EGT STAYED WITHIN LIMITS. WITH PMC OFF TEMP STARTED TO RISE. DUMPED FUEL IAW AIRCRAFT ABNORMAL PROCEDURES CHECK LIST. BORESCOPE NR 3 ENGINE HPC AND HPT IAW MM. PERFORMED SDR RRXA000296Harness · corrodedNR 1 ENGINE INFLIGHT SHUT DOWN DUE TO ERRATIC -OFF SCALE EGT INDICATION FOR BOTH ANALOG AND DIGITAL EGT READOUT. TESTED NR 1 EGT SYSTEM IAW M/M 77-20-4, FOUND ALL TO BE WITHIN LIMITS. USED WHEATSTONE BRIDGE (TT1000A) TEST BOX TO VERIFY EGT GAUGE AND EGT HARNSDR RAIA0005002Indicator · failed7086-STL- LEFT ENGINE DID NOT ACHIEVE TARGET TORQUE. MAINTENANCE INSPECTED AND FOUND LEFT ENGINE EGT INDICATOR FAULTY. MAINTENANCE REPLACED LEFT ENGINE EGT INDICATOR.SDR SWAA000367Indicator · erraticAIR TURNBACK, IN FLIGHT ENG SHUT DOWN, NR 2 ENG EGT INDICATOR EXCEEDED LIMITS WITH THRUST LEVERS AT IDLE. REMOVED AND REPLACED NR 2 ENG EGT INDICATOR PER MM.SDR 20000412SH034Bumper Block · damagedDURING START, POINTER STOP ARM STUCK TO LATEX BUMPER. REPLACED LATEX BUMPER WITH NON-STICKING MATERIAL. (X)SDR AU000310Harness · worn(AUS) NR 2 ENGINE TGT HARNESS CHAFING AT PYLON TERMINAL BLOCK B2.SDR 2000ZZZX767Harness · crackedHARNESS CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 2000ZZZX766Harness · crackedHARNESS CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 2000ZZZX765Harness · crackedHARNESS CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 2000ZZZX764Harness · crackedHARNESS CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 20000412SH033Bumper Block · damagedDURING START, POINTER STOP ARM STUCK TO LATEX BUMPER. REPLACED LATEX BUMPER WITH NON-STICKING MATERIAL. (X)SDR 2000ZZZX77Thermocouple · inoperativePILOT DISCREPANCY, EGT INOPERATIVE. DURING PHASE 3 INSPECTION, FOUND THERMOCOUPLE LEADS SEPARATED FROM THERMOCOUPLE. REPLACED EGT THERMOCOUPLE, OPERATIONAL CHECK SATISFACTORY. SUBMITTER STATED ON A FLEET OF 5 NEW C-172S AIRCRAFT, THIS IS THE 10TH FAILURE INSDR HEED065701Thermocouple · failedTHERMOCOUPLE DOES NOT MEET MINIMUM RESISTANCE VALUE OF 5.5 OHMS PLUS OR MINUS 1.5 OHMS.SDR 99ZZZX4621Thermocouple · inoperativeEGT THERMOCOUPLE INOPERATIVE. WIRES ARE SEPARATED FROM PROBE. TOTAL AIRFRAME TIME 482.8 HOURS AND SUBMITTER STATED THIS IS THE SECOND EGT THERMOCOUPLE REPLACED ON THIS AIRCRAFT. REPLACED EGT THERMOCOUPLE, OPERATIONAL CHECKED SATISFACTORY.SDR HEEA065116Indicator · malfunctionedTOT INDICATOR READS ZERO WHEN START ATTEMPTED.SDR HEEA065101Indicator · reads highTOT INDICATOR READINGS ARE HIGH.SDR RRXA991525Rectifier · failedLOST POWER TO EGT INDICATORS ANS SAI WHILE IN FLIGHT AT FL330. FOUND DC BUS BLOCKER RECTIFIER R7-5 WDM 24-4-1 P44 BAD. REMOVED AND REPLACED SAME, OPS CKS NORMAL AT THIS TIME.SDR C2XA99CL122Thermocouple · failedCLE - FLT 3439 - THE CREW REPORTED THAT AFTER TAKEOFF THE RIGHT ITT WENT TO 810C WITH ALL OTHER INDICATIONS NORMAL. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT ENGINE TRIM THERMOCOUPLE IAW P/W MM 77SDR MALA976624Itt · malfunctionedA 40 DEGREE SPLIT AT CHARTED TORQUE WITH ENGINE ANTI ICE ON, RIGHT ENGINE WAS AT 832 ITT WHILE LEFT ENGINE WAS AT 792. AIRCRAFT RETURNED TO DTW. MAINTENANCE PERFORMED BORESCOPE INSPECTION OF INLET, NO DEBRIS FOUND. PERFORMED ALL CHECKS IAW 72-00-00 PAGE 167.SDR 99UAL900554Socket · looseNR 1 ENGINE REACHED 640 DEGREES EGT ON CLIMBOUT (30 SECONDS OVERTEMP) APPROXIMATELY 1.8 EPR - N1 99 PERCENT HAD TO PULL THROTTLE BACK 4 INCHES TO MAINTAIN TEMPERATURE IN NORMAL RANGE. RETURNED TO DEN. *S/D* THE EGT EXCEEDANCE WAS AN INDICATION PROBLEM. TROSDR HEEA064780Indicator · stickiingINDICATOR NEEDLE STICKING ON SHUTDOWN.SDR SWAA991708Lead · corrodedAIR TURNBACK, AFTER TAKEOFF, NR 1 ENG EGT IND OVERTEMPED TO 955 DEGREES FOR APPROX 2 SECONDS. C/W HOT SECTION BORESCOPE INSPECTION, CALIBRATED EGT IND, TROUBLESHOT AND REMOVED AND REPLACED NR 1 ENG EGT SOFT LEAD AT ENG PER MM.SDR LS1R99106Indicator · erraticTOT INDICATOR HAD INTERMITTENT AND ERRATIC NEEDLE MOVEMENT. REMOVED AND REPLACED. (X)SDR MALA976581Itt Gauge · failedRIGHT ENGINE TEMP GAUGE FLUCTUATING AND ERRATIC -100 DEGREES TO LEFT AT ONE. AT HIGH POWER IT WOULD FLUCTUATE -20 TO 60 DEGREES. ALL OTHER ENGINE GAUGES STABLE AND NORMAL. AFTER POWER REDUCED IN CLIMB, RIGHT ENGINE TEMP GAUGE WOULD TICK WITHIN 10 DEGREES. SDR SWAA991520Egt Indicator · inopAIR TURNBACK, DURING FLIGHT, NR 2 ENG EGT INDICATOR INOP. REMOVED AND REPLACED NR 2 ENG EGT INDICATOR PER MM.SDR RAIA990914Egt Gauge · failedFLT 7038 - COU - LEFT ENGINE EGT ERRATIC. MAINTENANCE REPLACED LEFT EGT GAUGE. (M)SDR 99ZZZX3542Indicator · reads highHIGH TOT READING IN A HOVER. OUT OF PARAMETERS WITH TEST UNIT. REMOVED AND REPLACED.SDR C2XA99CL083Itt Indication · out of rangeCLE - FLT 4045 - THE CREW REPORTED THEY ABORTED TAKEOFF DUE TO THE NR 1 ITT WENT OVER 924 CELSIUS ON TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE DOWNLOADED THE CMC AND FOUND NO EXCEEDANCES RECORDED THEY PERFORMED POWER ASSDR HEEA063377Trim Compensator · out of adjustTRIM COMPENSATOR OUT OF ADJUSTMENT. (INCREASE).SDR HEEA063366Indicator · inoperativeOIL INDICATOR INOPERATIVE.SDR C2XA99CL075Tube · disconnectedCLE - THE CREW REPORTED THAT THE NR 2 ENGINE ITT WENT OT RED LINE ON TAKEOFF, THE AIRCRAFT ABORTED TAKEOFF, AND RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE CABCV INTERCONNECT TUBE DISCONNECTED. MAINTENANCE RECONNECTED THE TUBE IAW EMSDR DHL99720006Egt Indication · exceeded limitsAFTER TAKEOFF ROTATION, NR 1 EGT WAS GOING TO EXCEED TAKEOFF LIMITS NR 1 THRUST LEVER WAS REDUCED IN ORDER TO MAINTAIN A MAX CONTINUOUS EGT LIMIT OF NR 1 ENGINE. EPR AT THIS POINT WAS 1.70. GROUND RAN NR 1 ENG TO TAKEOFF EPR ALL INDICATIONS WITHIN LIMITS IAWSDR 99ZZZX3381Indicator · failedNR 1 ITT GAUGE DROPPED TO ZERO ON APPROACH. TROUBLESHOT TO BAD ITT GAUGE. REPLACED GAUGE, PN 41-402-1, SN 483 OFF, PN 130-380041-7, SN 543 ON. OPERATIONS CHECKED OK.SDR HEEA063231Indicator · malfunctionedTOT GAUGE RISES 30 DEGREES WHEN VHF IS KEYED.SDR HEEA063230Indicator · stuckTOT INDICATOR STUCK AT 300 DEGREES.SDR HEEA063217Indicator · stickingTOT INDICATOR STICKS ON ZERO ON START.SDR HEEA063216Indicator · inoperativeTOT INDICATOR INOPERATIVE.SDR HEEA063214Indicator · failedTOT INDICATOR FAILED TO OPERATE.SDR HEEA063202Indicator · inoperativeBACK LIGHT INOPERATIVE.SDR HEEA063427Indicator · failedGAUGE READS NEGATIVE WHEN AIRCRAFT RUNNING.
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