JASC 7720

Service difficulty reports · 696

Reports filed under 7720 · Engine Temperature 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 = '7720'
  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 C2XA99CL043Harness · failedCLE - THE NR 1 ENGINE T6 INDICATION FAILED IN FLIGHT. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE REPAIRED A BROKEN WIRE ON THE NR 1 T6 WIRE HARNESS IAW EMB-120 WM 20-21-00. OPERATIONAL CHECK OF THE SYSTEM WAS SATISFACTORY IAW EJun 1, 1999 · N16723 · Emb EMB120RTSDR 99ZZZX1912Indicator · malfunctionedLEFT ENGINE EGT ERRATIC. ENGINE SHUT DOWN AND UNEVENTFUL LANDING ACCOMPLISHED. INSPECTION REVEALED TEMPERATURE INDICATING SYSTEM MALFUNCTION. REPLACED TURBINE TEMP GAUGE WITH SERVICEABLE UNIT, SYSTEM OPERATIONALLY CHECKS GOOD. NO RECOMMENDATION FOR PREVENTApr 27, 1999 · N72CK · Lear 35ASDR HEEA061648Indicator · malfunctionedENGINE OIL INDICATOR HAD BUZZ WITH POWER TURNED ON.Apr 8, 1999 · N3122G · Skrsky S76ASDR 99ZZZX1700Indicator · malfucntionedGAUGE 20 DEGREES OFF OF CALIBRATION. REMOVED AND REPLACED.Apr 5, 1999 · N9907K · Bell 206BSDR RRXA99130Manifold · failedCLIMBING THROUGH FL350, NR 1 EGT GAUGE INTERMITTENTLY AND RAPIDLY OSCILLATED SEVERAL TIMES PLUS/MINUS 400 DEG FROM APPROXIMATELY 760DEG AVERAGE. THIS RESULTED IN A PRECAUTIONARY SHUTDOWN OF THE NR 1 ENGINE. AFTER SHUTDOWN, INTERMITTENTLY WENT FULL SCALE DEFLMar 4, 1999 · N961R · Doug DC873FSDR HEEA0016286Indicator · fluctuatesENGINE OIL TEMPERATURE NEEDLE CONTINUOUSLY FLUCTUATES.Oct 22, 1998 · N4253S · Skrsky S76ASDR CA981125050Indicator · reads low(CAN) TOT GAUGE READING 12 TO 14 DEGREES LOW. GAUGE REPLACED.Oct 8, 1998 · Bell 206BSDR DL73S981336Connector · dirtyON T/O, ROLL WITH INITIAL APPLICATION OF PWR, THE NR 2 ENGINE EGT FLUX BETWEEN 0 AND 500 DEGREES. CHECKED ENG WIRING FROM TERMINAL BLOCK TO CONNECTOR D400. CLEANED PINS 25/26. RAN ENGINE TO T/O PWR SEVERAL TIMES, COULD NOT DUPLICATE. EGT INDICATED NORMAL.Jun 25, 1998 · N323DL · Boeing 737232SDR HEEA0014805Indicator · inoperativeMGT INDICATOR GOES BLANK IN-FLIGHT.Jun 17, 1998 · N407MM · Bell 407SDR HEEA0014707Indicator · inoperativeMGT INDICATOR INOPERATIVE.Jun 10, 1998 · N6957Y · Bell 214STSDR HEEA0013561Gage · defectiveGP GAGE NEEDLE STICKS AND PARTICLES INSIDE GLASS.Mar 26, 1998 · N22751 · Bell 206B3SDR 98ZZZX1812Thermocuple · failedTHERMOCOUPLE HAS FAULTY INDICATION AND EXCESSIVE RESISTANCE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 22, 1998 · N901CF · Doug MD900SDR 98ZZZX1811Thermocouple · failedTHERMOCOUPLE HAS FAULTY INDICATION AND EXCESSIVE RESISTANCE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 22, 1998 · N901CF · Doug MD900SDR RAIA980121Inlet Temp Sensr · failedFLT 7478 - STL - LEFT ENGINE INTEGRATED ELECTRONIC CONTROL FAULT ILLUMINATED ACCOMPANIED BY LEFT ENGINE ANTI-ICE FAULT. MAINTENANCE REPLACED LEFT ENGINE INLET TEMPERATURE SENSOR. (M)Jan 21, 1998 · N559HK · Jetair JETSTM4101SDR HEEA0012384Probe · failedTEMP PROBE WILL NOT TEST PROPERLY.Dec 22, 1997 · N6095S · Snias AS350B2SDR HEEA0010755Indicator · defectiveTEMP INDICATOR HAS SOMETHING LOOSE INSIDE.Aug 19, 1997 · Bell 222SDR RAIA970805Thermocouple · failedFLT 7116 - STL - ON TAKEOFF ROLL OBJECTIVE TORQUE WAS 88 PERCENT. LEFT ENGINE ITT PASSED 785 DEGREES AT 80 PERCENT TORQUE. ABORTED TAKEOFF. MAINTENANCE REPLACED T6 THERMOCOUPLE PROBE. (M)Aug 3, 1997 · N422TE · Aerosp ATR42300SDR CA970815012Tt2 Sensor · faulty(CAN) NR2 ENGINE FLAMED OUT AT FL390. QUICK REFERENCE HANDBOOK CHECK CARRIED OUT. RELIGHT SUCCESSFUL. AIRCRAFT DIVERTED TO MAINTENANCE FACILITY. ENGINE INSPECTED AS PER BOEING FAULT ISOLATION MANUAL 73-21-00 PAGE 112 AND PAGE 128. T2 SENSOR REPLACED AS A PRECJul 25, 1997SDR HEEA0010472Probe · open circuitTEMP PROBE CIRCUIT OPEN.Jul 11, 1997 · N6100R · Snias AS350B2SDR HEEA0010469Probe · defectiveNG TEST .5 TO 1.0 OFF. PROBE DEFECTIVEJul 11, 1997 · N350BZ · Snias AS350B2SDR CA970626012Tot Indicator · frayed(CAN) TOT INDICATOR RECEIVED FROM O/H WITH ELECTRICAL PLUG FOR THE INSTRUMENT LIGHTING TORN OFF WITH THE FRAYED ENDS OF WIRING REMAINING.May 7, 1997 · Bell 206BSDR 9704266740Egt Red Light · illuminatedDURING TAKEOFF, NR 3 ENGINE EGT RED LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AT 90 KNOTS. MAX EGT REACHED WAS APPROXIMATELY 850 DEGREES. MAINTENANCE INSPECTED AND BORESCOPED ENGINE, NO DISCREPANCIES NOTED.Feb 27, 1997 · N640US · Boeing 747251FSDR RAIA970130Transducer · failedSTL - FLT 7034 - LEFT EGT FLUCTUATED. MAINTENANCE REPLACED THE DELTA P/P TRANSDUCER. (M)Jan 31, 1997 · N422AM · Bag JETSTM3201SDR 97ZZZX1330Terminal Lug · wrong partDURING ENGINE INSPECTION, FOUND IMPROPER TERMINAL LUG ON RIGHT ENGINE T1 PROBE. THE TERMINAL APPEARS TO BE THE PROPER MATERIAL (AL), BUT IS NOT A 1-322338-0 TERMINAL. IT APPEARS THAT THIS TERMINAL LUG WAS INSTALLED WHEN THE PROPER ONE WAS UNAVAILABLE.Jan 13, 1997 · N93QS · Cessna S550SDR HEEA978846Transmitter · inoperativeENG TEMP TRANSMITTER INOPERATIVE.Jan 10, 1997 · N6095S · Snias AS350B2SDR 97ZZZX2448Thermocouple · wornTHERMOCOUPLE WORN BEYOND SERVICEABLE LIMITS AND REMOVED IN COMPLIANCE TO SB 28096. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Dec 16, 1996 · N901CF · Doug MD900SDR 97ZZZX2447Thermocouple · wornTHERMOCOUPLE WORN BEYOND SERVICEABLE LIMITS AND REMOVED IN COMPLIANCE TO SB 28096. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Dec 16, 1996 · N901CF · Doug MD900SDR 97ZZZX2440Thermocouple · wornTHERMOCOUPLE WORN BEYOND SERVICEABLE LIMITS AND REMOVED IN COMPLIANCE TO SB 28096. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Dec 16, 1996 · N901CF · Doug MD900SDR 97ZZZX2439Thermocouple · wornTHERMOCOUPLE WORN BEYOND SERVICEABLE LIMITS AND REMOVED IN COMPLIANCE TO SB 28096. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Dec 16, 1996 · N901CF · Doug MD900SDR HEEA967813Indicator · crackedINDICATOR IS CRACKED. (GLASS IS CRACKED)Sep 10, 1996SDR RAIA960716T6 Thermocouple · failedFYV - FLT 7401 - LEFT ENGINE ITT INCREASED RAPIDLY TO 795. MAINTENANCE REPLACED LEFT ENGINE T6 THERMOCOUPLE. PERFORMED GROUND RUNS. (X)Jul 18, 1996 · N426TE · Aerosp ATR42300SDR HEEA967513Indicator · mis mfgTERMINAL STUDS POTTED IN INDICATOR INCORRECTLY. SMALL TERMINAL SHOULD BE ON POSITIVE SIDE AND LARGE STUD ON NEGATIVE SIDE.Jul 5, 1996SDR RAIA960703Trim Resistor · broken wireSTL - FLT 7408 - LEFT ENGINE REACHED MAXIMUM TEMPERATURE BEFORE MEETING TARGET TORQUE. MAINTENANCE REPAIRED WIRE ON THE LEFT T6 TRIM RESISTOR. PERFORMED GROUND RUNS. OPS CHECK GOOD. ENGINE TT: 14,615.6 HRS. (X)Jun 30, 1996 · N421TE · Aerosp ATR42300SDR SWAA960469Egt · overtempON CLIMB-OUT, NR 1 ENGINE INDICATED EGT OVERTEMP CONDITION FOR 3 SECONDS. AIRCRAFT RETURNED TO ABQ AND MADE AN UNEVENTFUL LANDING. PERFORMED ENGINE INLET AND EXHAUST INSPECTION PER BOEING M/M. NO DEFECTS NOTED.May 25, 1996 · N323SW · Boeing 7373H4SDR 9609295521Tt2 Sensor · malfunctionedDURING FULL THRUST TAKEOFF, NR 2 ENGINE EGT REACHED 630 DEGREES AND WAS CLIMBING. TAKEOFF WAS ABORTED AT 110 KNOTS AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED PT2/TT2 SENSOR AND REPLACED THE ENGINE OIL SCREEN, NO OIL CONTAMINATION WAS FOUND. PERApr 25, 1996 · N521US · Boeing 757251SDR HEEA967051Wiring Harness · corrodedPART IS CORRODED. (ENG HARNESS CORRODED) REPLACED WITH SERVICEABLE PART.Apr 18, 1996 · N5368F · Bolkms BO105SSDR 96ZZZX2939Thermocouple · failedTHERMOCOUPLE FAILED RESISTANCE CHECK. REPLACED WITH NEW 2 EACH UNITS, CORRECTED PROBLEM.Mar 27, 1996 · N901CF · Doug MD900SDR CA960412015T5 Harness · grounded(CAN)T5 TEMPERATURE DROPPED TO ZERO WHILE IN CRUISE. ELECTRICAL TERMINAL GROUNDED ON T5 HARNESS. HARNESS REPLACED.Mar 15, 1996 · Dhav DHC6300SDR AU960358Harness · faulty(AUS) NO1 ENGINE CORE HARNESS FAULTYMar 8, 1996SDR AU960646Probe · broken(AUS) NO2 ENGINE THERMOCOUPLE 'G' PROBE HAD APPROXIMATELY 3/4 OF ITS LENGTH BROKEN OFF - TGT HARNESS LOWER SECTION FAILED RESISTANCECHECKSMar 4, 1996 · Boeing 737377SDR UPS504882Overheat Light · illuminatedCREW REPORTED AT TOP OF CLIMB AS THRUST WAS REDUCED, THE NR 2 ENGINE OVERHEAT LIGHT ON OVERHEAD PANEL FLICKERED FOR FIVE SECONDS THEN WENT OUT. ALL ENGINE INDICATIONS NORMAL EXCEPT ON EVM, THE NR 2 ENG N1 WAS AT .5, WHILE NR 1 AND NR 3 WERE .24. AT THE TOP OOct 26, 1995 · N924UP · Boeing 72731CSDR VTZA95275Transducer · failedFLT NR 6173 - IAD-HVN - DURING TAKEOFF ROLL, ABORTED THE TAKEOFF DUE TO THE NR 2 ENGINE BYPASSED (TTL) AT 88 PERCENT TORQUE WITH TARGET TORQUE BEING 90-93 PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE DELTA P OVER P TAug 31, 1995 · N473UE · Bag JETSTM3201SDR MWEA95245Egt Bal Resistor · failedPILOT REPORTS ON CLIMBOUT FROM MKE, THE LEFT ENGINE EGT WENT DOWN TO 350 AND REMAINED FOR A SHORT TIME, THEN WENT DOWN TO 50 UNTIL RETURN TO MKE. ALL OTHER PARAMETERS NORMAL. MAINTENANCE INSPECTED LEFT ENGINE EGT SYSTEM, TESTED WITH BARFIELD EGT TEST BOX. RJul 31, 1995 · N600ME · Doug DC914SDR WTAA950198Trim Resistor · failedFAT - THE LT ENGINE T6 LIMITED DURING TAKEOFF ROLL. TAKEOFF ABORTED WITHOUT INCIDENT. MAINTENANCE REPLACED LT ENGINE TRIM RESISTOR, PERFORMED ENGINE GROUND RUN. ALL ENGINE PARAMETERS WITHIN LIMITS. ACFT RETURNED TO SERVICE. (Z)May 29, 1995 · N451UE · Emb EMB120RTSDR SWIA95567Temp Control · out of adjustNEITHER ENGINE WOULD MAKE TARGET TORQUE. ABORTED TAKEOFF. ADJUSTED TEMPERATURE CONTROLLER PERMANENT CONTROL. IN SAN: REINSPECTED LEFT AND RIGHT EGT SYSTEM. FOUND TO BE WITHIN LIMITS SET BY DSC SHEETS.Apr 28, 1995 · N2725D · Swrngn SA227ACSDR 95ZZZX2198Harness · deterioratedDURING ANNUAL ON CUSTOMER AIRCRAFT, THE TOT HARNESS LEAD WAS FOUND WITH THE OUTER INSULATION SLEEVE DETERIORATED TO A POINT WHERE A LIGHT RUB WOULD REMOVE IT FROM THE WIRES. PART WAS REPLACED.Apr 11, 1995 · N5313Y · Hughes 369D
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