Pratt & Whitney JT9D-7R4D

Service difficulty reports · 1,030

Newest first. General aviation reporting is voluntary.

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 engine_model_key = 'JT9D7R4D'
  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 ABXA20260618267Engine · hot startDURING TAXI, RT ENGINE HOT START-563 DEGREES FOR 6 SECONDS. RETURNED TO THE GATE (BTB). PER ABX AMM 71-00-00 & FIM 71-08 FAULT TREE 816 . MOTORED RT ENG FOR 30 SECONDS. STARTED ENGINE WITH A MAX EGT OF 381. AIRCRAFT OK FOR SERVICE.Jun 18, 2026 · N651GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20260429181Engine · vibrationVERY HEAVY VIBRATION FROM LEFT ENGINE DURING ENGINE START UP & TAXI. DID ENGINE RUN UP & IT GOT WORSE. NO BAD ENGINE INDICATIONS ON EICAS. A/C RETURNED TO BLOCKS (BTB). AIRCRAFT FREIGHT LOAD IS LIGHT AT 15,500. PERFORMED ENGINE IDLE RUN AND BREAK AWAY POWER RUApr 29, 2026 · N651GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20260312112Bleed Valve · warning messageR ENGINE BLEED VALVE CAUTION MSG ON THE CLIMB THROUGH 8000 FT .WE RAN THE QRH AND CONTINUED CRUISING AT FL380 SINCE THERE WAS NO LIMITING FACTOR TO THE FLIGHT. JUST AS WE STARTED DESCENDING TO FL240 WE GOT A CABIN ALTITUDE WARNING MESSAGE WHICH FORCED US TO EXMar 12, 2026 · N651GT · Boeing 767231 · Compressor Bleed ValveSDR ABXA20251215343Pressure Switch · defectiveON TAXI OUT, LT ENGINE OIL FILTER STATUS MESSAGE ILLUMINATED. AIRCRAFT RETURNED TO BLOCKS (BTB). MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE DIFFERENTIAL PRESS OIL SWITCH IAW AMM 79-35-01. OPS AND LEAK CHECKED GOOD. ACCOMPLISHED IDLE RUN OF NR 1 ENGINE IDec 15, 2025 · N650GT · Boeing 767231 · Engine Oil PressureSDR ABXA20251113298Engine · hot startRT ENG ABORTED ENG START DURING TAXI OUT,BECAUSE OF HOT START. EXCEEDED LIMITS FOR 1 SEC. UP TO 539 DEGREES.A/C RETURNED TO GATE (BTB) AND MTX GROUNDED A/C. MTX PERFORMED A SECOND TIME R ENG START. EGT READING 279 REF FIM 71-08 TASK 816. NO FURTHER MX ACTION Nov 13, 2025 · N651GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20251024277Sensor · malfunctionedFL320 L ENG STARTED SURGING, EPR +/- .55, N1 +/- 2.3, EGT +/- 20. FOLLOWED QRH, ENGINE STABILIZED IN "FLT" IGN. MODE- REMAIN MOSTLY STABLE. ANY TURB, R ENG SURGED ALSO. INTERMITTENT SURGE FOR REMAINING FLIGHT. DIVERTED TO CVG AND LANDED .MTX GROUNDED AC ANOct 24, 2025 · N650GT · Boeing 767231 · Engine Indicating SystemSDR ABXA20250907220Sensor · defectiveL ENG FLUCTUATE AT FL 360 EPR 1.31-1.27, N1 82.8-86.5, EGT 418-416. NO FLUCTUATION ON DESCENT OR APPROACH. DEFERRED THE EEC (PMC) SYSTEM PER MEL 73-21-1-1B. REACTIVATED EEC'S PER MEL 73-21-1-1B. REMOVED OLD, THEN INSTALLED NEW L ENGINE TT2 FUEL CONTROL SENSSep 7, 2025 · N650GT · Boeing 767231 · Fuel Controlling SystemSDR ABXA20250704141Engine · warning lightON #2 ENG START WHILE TAXING EGT EXCEEDANCE TO 562 AC RETURNED TO GATE (BTB) AND MTX GROUNDED AC. MTX PERFORMED #2 ENG. START ,EGT FOUND TO BE IN LIMITS. IAW FIM TASK 71-08 FAULT TREE 816. AND MTX RETURNED AC TO SERVICE.Jul 4, 2025 · N651GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20250606122Engine · hot startRH HOT ENGINE START DURING TAXI OUT ,A/C RETURNED TO GATE(BTB) AND MTX GROUNDED A/C ,CREW MOTORED ENG TO LET COOL PER FIM 71-08 FAULT TREE 801. 2ND ENGINE START SUCCESSFUL. EGT PEAK 476.MTX RETURNED AC TO SERVICE .Jun 6, 2025 · N650GT · Boeing 767381 · Engine (Turbine/Turboprop)SDR ABXA20250508091Engine · hot startDURING TAXI, HOT START #2 ENG WITH EGT EXCEEDANCE AT 543 C. A/C RETURNED TO BLOCKS. (BTB). MAINTENANCE MOTORED #2 ENGINE AND LET IT COOL PER AMM 71-00-00 AND FIM 71-08 FT 816. RESTARTED #2 ENGINE. MAX EGT DURING ENGINE START WAS 355 DEGREES AUTH NUMBER 202May 8, 2025 · N651GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20250424085Engine · overtempON TAXI OUT, DURING LEFT ENGINE START EGT REACHED 541 EGT. AIRCRAFT RETURNED TO BLOCKS (BTB). PER AMM 71-00-00 AND FIM 71-08 FT 816. MOTORED LT ENGINE AND LET COOL. RESTARTED LT ENGINE, MAX EGT DURING START WAS 399 DEGREES. AIRCRAFT RELEASED FOR SERVICE.Apr 24, 2025 · N650GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20241212254Probe · malfunctionedRIGHT ENGINE SURGED DURING CLIMB, AC DECLARED EMERGENCY AND PERFORMED (ATB) AC RETURNED TO GATE AND MTX GROUNDED AC .AC IS CURENTLY BEING WORKED IN LAX , AMENDED REORT WILL BE SENT WHEN WORK IS COMPLETED. REMOVED AND REPLACED EEC PT2/TT2 PROBE IAW AMM 73-21-Dec 12, 2024 · N651GT · Boeing 767231 · Engine Indicating SystemSDR ABXA2024128247Engine · overtempAT ENGINE START UP, RIGHT ENGINE OVERTEMP ON START UO - TEMP REACHED 545 DEG C. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE GROUNDED THE AIRCRAFT. MAINTENANCE TROUBLE SHOT IAW B767 FIM 71-05 FAULT TREE 801 AND FIM 71-08 FAULT TREE 816. ENG EXC PG ON EICAS SHOWEDec 8, 2024 · N650GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA20240802147Controller · malfunctionedDURING FLIGHT FROM BOS TO CVG  TO FL380 AT LEVEL OFF R ENG PAC STALLED AND SURGED THE RIGHT ENG ROLLED BACK TO IDLES AS THIS BEGAN THE EGT STARTED INCREASING WE SECURED R ENG @ 680 EGT.CREW DECARED EMERGENCY, SHUT DOWN RH ENGINE AND DIVERTED TO JFK AIRPORT AAug 2, 2024 · N651GT · Boeing 767231 · Fuel Controlling SystemSDR ABXA20240731146Sensor · malfunctionedIN CRUISE AT FL350, LT ENG SURGING .3 N1 INCREASING TO .6 N1 FLUXUATION BY THE TIME OF SHUTDOWN IAW QRH. FLUXUATION REFLECTED IN EPR, FF, & OIL PRESS. PER QRH. ENG SHUTDOWN & CREW DECLARED AN EMERGENCY & DIVERTED TO DFW . AFTER LANDING MTX GROUNDED ACFT. PERFJul 31, 2024 · N650GT · Boeing 767231 · Engine Indicating SystemSDR ABXA2024052196Fuel Control · faultedL ENG EPR, N1 EGT FLUCTUATED IN FLIGHT. SEE VIDEO SENT MECH/MTC AC RETURED TO FIELD AND GROUNDED BY MAINTENANCE DETERMINED FROM FLIGHT DATA AND NAMED VIDEO THE L ENGINE FUEL CONTROL FAULTY, REMOVED NAMED PART PER AMM 73-21-01. DETERMINED FROM FLIGHT DATA AMay 21, 2024 · N650GT · Boeing 767231 · Fuel Control/Turbine EnginesSDR ABXA2024042383Unknown · vibrationDURING TAXI WHILE STARTING #2 ENGINE RIGHT ENGINE HAD SIGNIFICANT VIBRATION AFTER ENGINE START ,ENGINE INSTERMENTS WERE NORMAL. AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC .PERFORMED VISUAL INSPECTION OF FAN BLADES, CORE COMPONENTS VBV/VSV, GEARBOX, ALL Apr 23, 2024 · N651GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR ABXA2024031157Igniter · faultedDURING TAXI STARTING RH ENGINE #1 INGNITOR LACKET TO START THE ENGINE AC RETURNED TO GATE AND MAINTENACE GROUNDED AC AND DEFERRED THE #1 IGNITION IAW MEL 74-00-1B. AC WAS RETURED TO SERVICE AND DEPARTED .Mar 11, 2024 · N651GT · Boeing 767231 · Magneto/DistributorSDR ABXA20221017115None · noneNO LIGHT OFF LEFT ENGINE WITH TWO ATTEMPTS. AIRCRAFT BACK TO BLOCK AND GROUNDED BT MAINTENANCE. MAINTENANCE STARTED L/H ENGINE IAW B767 AMM 71-00-00. LIGHT OFF ON FIRST ATTEMPT W/ BOTH IGNITORS SELECTED. AIRCRAFT RETURNED TO SERVICE.Oct 17, 2022 · N650GT · Boeing 767 · Powerplant SystemSDR ABXA2022090286Warning Message · illuminatedEGT EXCEEDANCE 538 ON RIGHT ENGINE DURING START. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE INSPECTED ENGINE AND TURBINE AREA. NO DEFECTS NOTED IAW B767 AMM 72-51-01. AIRCRAFT RETURNED TO SERVICE.Aug 30, 2022 · N650GT · Boeing 767231 · Turbine SectionSDR ABXA2022041141None · noneR/H ENGINE EGT EXCEEDANCE ON START 542 DEGREES FOR 3 SECONDS. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE T/S IAW FIM 71-08-00-990-816-P00. PERFORMED #2 ENG START WITH FLT CREW IAW AMM 71-00-00. SECOND ENG START WITHIN LIMITS. AIRCRAFT RETApr 11, 2022 · N650GT · Boeing 767 · Powerplant SystemSDR ABXA20211012101None · noneRT. ENG. IGNITION START SELECTOR DOES NOT HOLD IN THE GND POSITION WHEN STARTING. NO VALVE LIGHT, NO N2 ROTATION. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MINTENANCE. MAINTENANCE FOUND START CONTROL VALVE WAS FAULTY. START CONTROL VALVE WAS DEFERRED IAW ABX MEL Oct 12, 2021 · N650GT · Boeing 767231 · Engine Starting SystemSDR UIEA2021031800611Blade · damagedFAN CASE DAMAGED AND BLADE ON LH ENGINE (REMOVED AND REPLACED #1 ENG 2EA ACOUSTIC PANELS PER AMM 72-33-05 & REPLACED BLADES 39 & 19 PER AMM 72-31-02. SEE LOG PAGE 1329001 FOR OPS CHECK. TEST NO.11 VIBRATION SURVEY ACCOMPLISHED PER AMM 71-00-00. NIL DEFECTS NOMar 15, 2021 · N651GT · Boeing 767231 · Turbine Engine Compressor SectionSDR 2DYA202010105001Power Lever · stuckAT FL39,000 DURING CRUISE, LEFT THRUST LEVER WAS NOT RESPONDING AND EPR WAS STUCK AT 1.00. HAD TO DECENT TO FL36000 TO MAINTAIN AIRSPEED. EGT WAS BEING ERRATIC PRIOR TO THAT + OR MINUS 30 DEGREES. WE WILL FILE A SUPPLEMENTAL REPORT WHEN MORE INFORMATION IS Jan 6, 2021 · N602KW · Boeing 767238 · Power LeverSDR 2DYA202010106001Idg · underservicedRIGHT GEN DRIVE EICAS MESSAGE AFTER TAKE-OFF, DRIVE DISC LIGHT CAME ON. CREW CALLED DISPATCH REPORTING RT IDG DRIVE/GEN. OFF EICAS MESSAGE, CREW FOLLOWED FCOM AND DECIDED TO RETURN FIELD (JFK). MOC CALLED JFK MX AND THEY WILL MEET THE AIRCRAFT UPON LANDING.Jan 5, 2021 · N602KW · Boeing 767238 · AC Generator-AlternatorSDR 2DYA2020082005Engine · overtempPASSENGER FLIGHT EN ROUTE FROM GEO TO JFK WAS AT TOP OF DECENT, AT FL380 TIME APPROXIMATE 0027Z. THE LT GENERATOR WENT OFF LINE AND THE APU GENERATOR PICKED UP THE ELECTRICAL LOAD. N1, N2, AND N3 WAS REDUCED WITH COMMAND THROTTLE REDUCED AND EGT BEGAN TO RISAug 25, 2020 · N602KW · Boeing 767238 · Engine (Turbine/Turboprop)SDR UIEA2019042403945Tube · cracked#2 ENGINE TURBINE SECTION COOLING TUBE, 8:00 POSITION HAS A 1 IN CRACK AT PREVIOUS WELD. (<P>REMOVED AND REPLACED #2 ENGINE TURBINE SECTION COOLING TUBE IAW B767 AMM 75-24-08.</P>)Apr 22, 2019 · N650GT · Boeing 767231 · Turbine SectionSDR UIEA2018083001849Engine · malfunctionedAFTER TAKEOFF RED N2 EXCEEDANCE LT ENG AND NON-RESPONSIVE. THRUST LEVER WITH ENG SPEED STILL INCREASING. PRECAUTIONARY ENG SHUTDOWN. REPLACED LT ENGINE PER AMM 71-00-00. LEAK CK AND OPS CKS GOOD.Aug 28, 2018 · N653GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR UIEA2017122502434Engine · odorSTRONG BURNING ODOR FOR ABOUT 5 MINUTES, AT FL 400. REMOVED AND REPLACED THE NR 1 ENGINE IAW AMM 71-00-02, LEAK CHECKED AND ENGINE RUNS GOOD.Dec 22, 2017 · N653GT · Boeing 767231 · Engine (Turbine/Turboprop)SDR UIEA2017111702255Blade · nickedNR 1 & 40 BLADES FOUND NICKED. BLENDED WITHIN LIMITS IAW AMM 72-31-02. PERFORMED A DYE PENETRANT INSPECTION ON THE BLADES AT BLENDS. NO CRACKS FOUND, COMPLETED FPI IAW MM 70-11-06, OK FOR SERVICE.Nov 16, 2017 · N650GT · Boeing 767231 · Turbine Engine Air Inlet SectionSDR 2DYA20160830005Engine · power lossAN INFLIGHT EMERGENCY WAS REPORTED DUE TO A ENGINE ROLL BACK. APPARENT EVENT OF ICE CRYSTAL ICING. RT ENG INDICATIONS OF IDLE, ENG ANTI ICE WAS ON, IN PRECIP. AND TURBULENCE, UNABLE TO HOLD FL390 ALTITUDE AND DECLARED EMERGENCY OF COMING OUT OF ALTITUDE ON 12Aug 21, 2016 · N767DA · Boeing 767246 · Engine (Turbine/Turboprop)SDR UIEA2016062700507Wire Harness · contaminatedNR 2 ENGINE FAN AREA ELECTRICAL HARNESS DIRTY WITH OIL. CLEANED IAW AMM 72-00-00.Jun 27, 2016 · N648GT · Boeing 76733AER · Turbine Engine System WiringSDR UIEA2016062700492Lock · corrodedENGINE NR 1 CORROSION FOUND ON THE RT C-DUCT LOCK. CORROSION CLEANED AND TREATED ACCY TO AMM 51-05-03.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Thrust ReverserSDR UIEA2016062700493Protector · peelingENGINE NR 2 RT FAN COWL-MID OTBD PART DIVISOR MATERIAL. CHECK FAN COWL FWD L/E FOUND EDGE PROTECTOR PEELING OFF, BONDED EDGE PROTECTOR USING EA 9394 ADHESIVE PASTE IAW CMM 71-13-22.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Cowling SystemSDR UIEA2016062700494Duct · dentedNR 1 ENGINE DENT FOUND IN THE TOP SIDE OF THE LT C-DUCT RAIL. C-DUCT REPLACED, NRC M0150 REPLACEMENT.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Cowling SystemSDR UIEA2016062700495Cowling · chafedENGINE NR 2 LT CORE COWL AFT BRACKET OF HOLD OPEN ROD CHAFING. ENGINE NR 2 REPLACE CORE COWL IAW AMM 71-11-06.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Cowling SystemSDR UIEA2016062700496Cowling · damagedENGINE NR 2 LT CORE COWL SUPPORT ROD DAMAGED. LT CORE COWL REPLACED.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Cowling SystemSDR UIEA2016062700497Bracket · damagedENGINE NR 2 RT CORE COWL BRACKET. STOW PIN OF HOLD OPEN ROD DAMAGE BRACKET. ADAPTER REPLACED AMM 71-11-11.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Cowling SystemSDR UIEA2016062700498Plug · corrodedENGINE NR 1, NR 2 PLUGS ON THE IGNITION BOX ARE CORRODED. ENGINE NR 1, NR 2 PLUGS ON THE IGNITION BOX WERE CLEANED OF CORROSION IAW SWPM 20-60-01.Jun 27, 2016 · N648GT · Boeing 76733AER · Ignition SystemSDR UIEA2016062700503Seal · tornENGINE NR 2 IN THE INTERMEDIATE CASE ON THE BLADE, SEAL IS TORN. PERFORMED SEALANT ON THE ENGINE NR 2 IN THE INTERMEDIATE CASE BLADES IAW AMM 51-31-00.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine (Turbine/Turboprop)SDR UIEA2016062700506Screw · corrodedENGINE NR 2 ON THE UPPER IGNITION BOX, THE PLUGS SCREWS ARE CORRODED. ENGINE NR 2 ON THE UPPER IGNITION BOX THE PLUGS SCREWS WERE CLEANED FORM CORROSION IAW SWPM 20-60-01.Jun 27, 2016 · N648GT · Boeing 76733AER · Ignition SystemSDR UIEA2016062700476Cable · looseNR 2 ENGINE LT AND RT SIDE 0300 AND 0900 O`CLOCK CORE AREA IN THE THERMOCOUPLE CABLE SLEEVE LOOSE CLOSE THE UNIT. THERMOCOUPLE CABLE REPLACED IAW 77-21-02, UPPER, ENGINE PN CF6-80C2, S/N 704860.Jun 27, 2016 · N648GT · Boeing 76733AER · Cylinder Head Temperature (CHT) Indicating SystemSDR UIEA2016062700479Latch · bentNR1 ENGINE UPPER LATCH HUG GUARD BEND. LATCH REPLACED IAW AMM 78-31-01.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Thrust ReverserSDR UIEA2016062700481Latch · looseNR 2 ENGINE UPPER LATCH LOOSE. LATCH REPLACED IAW 78-31-01.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Thrust ReverserSDR UIEA2016062700482Sensor · faultyLEFT PACK COMPRESSOR OUTLET SENSOR, TS41, FOUND FAULTY, READS HIGH RESISTANCE. OUTLET SENSOR REPLACED IAW MM 21-51-06.Jun 27, 2016 · N648GT · Boeing 76733AER · Cabin Cooling SystemSDR UIEA2016062700487Latch · bentENGINE NR 2 RT C-DUCT LATCH HUG GUARD BEND. LATCH REPLACED IAW AMM 78-31-01.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Thrust ReverserSDR UIEA2016062700488Bushing · wornENGINE NR 1 RT C-DUCT, UPPER LATCH LOOSE. REPLACED KINK ASSY, REPLACED BUSHINGS. PINS THREADED AND SPACERS IAW AMM 78-31-01.Jun 27, 2016 · N648GT · Boeing 76733AER · Engine Thrust ReverserSDR 2PSA2015121201Seal · leakingTAKEOFF & 0:30 CREW OBSERVED LT ENG OIL QTY DECREASING ABNORMALLY. ENG WAS SHUT DOWN & ACFT RETURNED. DISCOVERED A FAILED FACE SEAL AT THE FUEL PUMP DRIVE PAD ON THE ACCESSORY GEAR BOX. A GVI OF THE SEAL WAS COMPLIED WITH PRIOR TO THE PUMP INSTALLATION THE Dec 8, 2015 · N673BF · Boeing 767238 · Turbine Engine Oil SystemSDR 2DYA20141030001Eec · malfunctionedLEFT ENG INDICATION EPR, NO RESPONSE TO THROTTLE MOVEMENT. FUEL FLOW INDICATION LOW N1 & N2 INDICATION NORMAL. PLACED EEC OPERATION ON MEL 77-11-01-01. CHECKED FUEL FLOW TRANSMITTER IAW 73-31-01 & TESTED IAW AMM 71-00-00 TEST NR 3. OK FOR SERVICE. NO FURTHOct 24, 2014 · N767DA · Boeing 767246 · Fuel Control/Turbine EnginesSDR XV6A2014072700004Engine · fluctuatesAFTER LEVELING AT CRUISE ALTITUDE, LT ENGINE WOULD FLUCTUATE RAPIDLY. WITH NT TURNED OFF FOLLOWING WAS OBSI EPR 1.3 - 1.4, N1 80% TO 90%, N2 84% TO 93%, FUEL FLOW 4.6 TO 6.4 & 37,000 FT PRESS ALT. AT 3,000 FT LEVEL FLIGHT 250KTS N1 ON BOTH ENGS AT 61% LT ENGJul 27, 2014 · N769VA · Boeing 767222 · Powerplant System
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