# Service difficulty reports: Pratt & Whitney JT9D-7J

A list on [Pratt & Whitney JT9D-7J](https://openairdocs.org/engine/pratt-whitney-jt9d-7j.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 6 · 257 reports

- [SDR CA150612010](https://openairdocs.org/sdr/CA150612010.md): Control Module · leaking · Jun 7, 2015 · Boeing 747SPJ6 · Rudder Control System
  > (CAN) DURING WALK AROUND, MX CREWS FOUND EVIDENCE OF HYD LEAKING COMING FROM TAIL SECTION. AFTER FURTHER INVESTIGATION, THE HYD SYS 3 WAS COMING FROM UPPER RUDDER CONTROL MODULE, SMALL PIN HOLE, CRACK ON CASTING, SEE PICTURES. MX CREWS REPLACED THAT DEFECTIV
- [SDR CA120808002](https://openairdocs.org/sdr/CA120808002.md): Rod End · sheared · Aug 7, 2012 · Boeing 747SPJ6 · Aileron Control System
  > (CAN) DURING WALK AROUND, MAINTENANCE CREW FOUND AN EVIDENCE OF HYDRAULIC LEAK COMING FROM RT INBD AILERON POWER CONTROL PACKAGE. FURTHER INVESTIGATION SHOWN THAT THE HYDRAULIC WAS COMING FROM THE ACTUATOR. MAINTENANCE CREW DECIDED TO REMOVED THE DEFECTIVE P
- [SDR CA120606007](https://openairdocs.org/sdr/CA120606007.md): Skin · damaged · Jun 5, 2012 · Boeing 747SPB5 · Leading Edge Devices
  > (CAN) DURING WALKAROUND INSPECTION, MAINTENANCE CREW FOUND AN EVIDENCE OF BIRD STRIKE ON L/E FLAP NR 21 NOSE FAIRING OTBD SECTION. THE NOSE FAIRING SECTION WAS INSPECTED IAW SRM 57-51-01 AND FOUND WITHIN LIMITS. NO NOISE, VIBRATIONS OR ENGINE FLUCTUATIONS WA
- [SDR CA120126002](https://openairdocs.org/sdr/CA120126002.md): Actuator · failed · Jan 25, 2012 · Boeing 747SPJ6 · Fuel Control/Turbine Engines
  > (CAN) WHILE CARRYING OUT THROTTLE RIGGING ON NR 3 ENGINE FOUND FUEL CONDITION CONTROL MOTOR ACTUATOR WITH ONE OF THE 3 ATTACH LUGS BROKEN. NO SYMPTOMS DURING AIRCRAFT OPERATION (GRD ENGINE RUNS OR FLIGHTS). CHECKED AND FOUND ONE SB TARGETTING THAT SPECIFIC SI
- [SDR EIAA20111219259](https://openairdocs.org/sdr/EIAA20111219259.md): Engine · malfunctioned · Dec 19, 2011 · N486EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > NR 4 ENGINE FIRE INDICATION. CREW REPORTED NR 4 ENGINE FIRE INDICATION AND BOTH FIRE BOTTLES DISCHARGED. PASSING THRU FL310 HEAD MUFFLED THUD FROM RIGHT SIDE, NO OTHER INDICATIONS. SHORTLY AFTER NR 4 ENGINE FIRE SWITCH ILLUMINATED 30 SECONDS LATER FIRE BEL
- [SDR EIAA20111215261](https://openairdocs.org/sdr/EIAA20111215261.md): Pressure Switch · loose · Dec 15, 2011 · N470EV · Boeing 747273C · Engine Oil Distribution (Airframe Furnished)
  > NR 3 OIL QUANTITY INDICATOR DROPPED TO ZERO AT 7000, OIL PRESSURE FLUCTUATED +/- 10 PSI. ENGINE SHUTDOWN. PERFORMED ENGINE WINDMILLING INSPECTION IAW MM 72-00-00 PAGE 846. FOUND LOW OIL PRESSURE SWITCH LOOSE, RETORQUED PER MM 79-33-01. OP'S AND LEAK CHECKED N
- [SDR EIAA20111111250](https://openairdocs.org/sdr/EIAA20111111250.md): Fitting · leaking · Nov 11, 2011 · N470EV · Boeing 747273C · Turbine Engine Oil System
  > ENGINE OIL PRESSURE LIGHT - SLOW LOSS OF OIL. FOUND EVIDENCE OF LEAKAGE AT THE ANGLE GEARBOX RIGHT SIDE FITTINGS, REPLACED WITH NEW SEAL PACKINGS PER MM 70-10-07 PERFORMED ENGINE WINDMILLING INSPECTION PER AMM 72-00-00. NO DEFECTS NOTED. SEAL REPLACED AT C
- [SDR EIAA2011222](https://openairdocs.org/sdr/EIAA2011222.md): Engine · fire · Sep 7, 2011 · N485EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > APPROX 5 MINUTES AFTER DEPARTURE AND CLIMB POWER SET NR 3 ENG FIRE WARNING OCCURRED. ACCOMPLISHED ENG FIRE/SEVERE DAMAGE CHECKLIST. LIGHT REMAINED ILLUMINATED UNTIL AFTER LANDING. REMOVED AND REPLACED LT SIDE COWL DUE TO ALL DAMAGE PER MM71-11-06. PERFORMED
- [SDR EIAA2011149](https://openairdocs.org/sdr/EIAA2011149.md): Garlock Seal · leaking · Aug 22, 2011 · N471EV · Boeing 747273C · Turbine Engine Oil System
  > NR 4 ENGINE SHUT DOWN IN FLIGHT. FOUND CSD GARLOCK SEAL TO BE LEAKING. REMOVED CSD AND GENERATOR, INSTALLED DISPATCH KIT PER B747 MM 24-11-00. RAN NR 4 ENGINE FOR 30 MINUTES, NO OIL LOSS, QUANTITY STEADY PER MM 72-00-00, OK FOR CONTINUED SERVICE.
- [SDR CA110715004](https://openairdocs.org/sdr/CA110715004.md): Housing · fractured · Jul 14, 2011 · Boeing 747SPJ6 · Hydraulic Pressure Relief Valve, Main
  > DURING TAKEOFF ROTATION, THE NR 4 HYD PRESSURE CAUTION LIGHT CAME ON. FLIGHT ENGINEER REPORTED FLUID QTY WENT TO ZERO AFTER GEAR RETRACTION. TOWER REPORTED SMOKE FROM NR 4 ENGINE. UNEVENTFUL LANDING AFTER COMPLETING PROCEDURES AND CONFIGURING AIRPLANE FOR L
- [SDR EIAA2011080](https://openairdocs.org/sdr/EIAA2011080.md): Spinner · malfunctioned · Jul 6, 2011 · N470EV · Boeing 747273C · Turbine Engine Air Inlet Section
  > NR 2 ENGINE EXPERIENCED SURGE STALL WITH INSTANTANEOUS EGT EVENT AND SHUTDOWN, WITH VIOLENT VIBRATION PRIOR TO EVENT. CREW REPORTED VISIBLE DEBRIS IN AREA OF NR 2 INLET, DUMPED FUEL AND RETURNED TO HIK, NO FIRE REPORTED. FOUND NR 2 ENGINE SPINNER & FAN WITH
- [SDR EIAA2011039](https://openairdocs.org/sdr/EIAA2011039.md): Compressor · surges · Apr 25, 2011 · N486EV · Boeing 747212B · Turbine Engine Compressor Section
  > DURING CLIMB ENGINE NR 1 HAD ENGINE COMPRESSOR SURGE AT 12,000 19,000 AND AGAIN AT 29,000. OPERATED ENGINE AT IDLE NO FURTHER STALLS, NO EXCEEDENCE OBSERVED. RETURNED TO ANC. REMOVED AND REPLACED NR 1 ENGINE PER EIA W/C F7001, F7202, F7207, F7209 OP'S CHECK
- [SDR CA110421005](https://openairdocs.org/sdr/CA110421005.md): Support Beam · cracked · Apr 15, 2011 · Boeing 747SPJ6 · Fuselage Miscellaneous Structure
  > (CAN) UPON LT NR 4 L/E FLAP PDU REMOVAL FOR ACCESS, FOUND PDU SUPPORT BEAM CRACKED. PART WAS REMOVED FOR REPAIR IAW SRM 51-40-03. AN INSPECTION WAS CALLED FOR ALL L/E FLAP PDU`S.
- [SDR CA110421002](https://openairdocs.org/sdr/CA110421002.md): Channel · misinstalled · Apr 15, 2011 · Boeing 747SPJ6 · Wing, Attach Fittings
  > (CAN) UPON REMOVAL OF LT WING L/E THROTTLE CABLE PULLEY BRACKET AT BS 445.5 FOR ACCESS, FOUND SUPPORT CHANNEL WRONGLY INSTALLED IAW IPC 76-11-44-02. AFT ATTACHMENT SAFETY BOLT, BACB30DX6-18 AND WASHER, BACW10P95A, MISSING. THE ASSY COULD HAVE DETACHED AND DI
- [SDR EIAA2011020](https://openairdocs.org/sdr/EIAA2011020.md): Line · loose · Mar 2, 2011 · N470EV · Boeing 747273C · Engine Indicating System
  > NR 2 ENGINE SURGED PASSING FL140 EGT AT 750 EPR AT 1.3 HAD SURGE THEN HUNG, NO THROTTLE RESPONSE. SHUT DOWN ENGINE WAITED 5 MIN, THEN RE-STARTED, AFTER 10 MIN AT FL040, RE-TARDED THROTTLE AND EXPERIENCED 2ND SURGE SHUT DOWN ENGINE WITH NO EXCEEDANCE. CARRIED
- [SDR CA110212001](https://openairdocs.org/sdr/CA110212001.md): Sleeve · loose · Feb 10, 2011 · Boeing 747SPJ6 · Trailing Edge Flaps
  > WHILE REMOVING NR 2 ENGINE PYLON, FOUND A LT WING L/E FLAPS DRIVE SHAFT COUPLING SLEEVE, AT WSTA 468, WITH ATTACH SCREWS LOOSENING OUT DUE TO MISSING LOCKWIRE. AN INSP WAS INSTRUCTED TO BE CARRIED OUT ON BOTH OUR ACFT, ON ALL L/E FLAPS DRIVE SHAFTS COUPLINGS
- [SDR EIAA2010080](https://openairdocs.org/sdr/EIAA2010080.md): Engine · malfunctioned · Nov 27, 2010 · N482EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > AT 3500 FEET NR 2 ENGINE HAD AN EPR, N1, EGT ROLLBACK AND ENGINE SHUT DOWN WITH OIL PRESSURE DROP BETWEEN 30 AND 35 PSI. ACCOMPANIED BY SEVERE ENGINE VIBRATION, ALL SIMULTANEOUSLY. REMOVED AND REPLACED NR 2 ENG PER EIA 7201, 7203, 7204, 7207 & 7209 OPS CK GO
- [SDR KCSA10052](https://openairdocs.org/sdr/KCSA10052.md): Control Box · unserviceable · Nov 8, 2010 · N713CK · Boeing 7472B4B · Power Lever
  > NR 2 ENGINE THRUST LEVER INOPERATIVE. ENGINE AT IDLE FOR 5 MINUTES. ALL PARAMETERS NORMAL. PERFORMED INFLIGHT ENGINE SHUTDOWN. TIME OF SHUTDOWN: 0029Z; OIL PRESSURE: 11 PSI/QUANTITY 5.7 GAL. REMOVED AND REPLACED CABLE DRUM PUSH/PULL CONTROL BOX IAW B747
- [SDR CA101105001](https://openairdocs.org/sdr/CA101105001.md): Duct · blown · Oct 22, 2010 · Boeing 747SPJ6 · Pneumatic Distribution System
  > (CAN) AT ROTATION, EXPERIENCED NOTICEABLE VIBRATION FROM THE THROTTLE QUADRANT ACCOMPANIED BY NOISE. UPON RAISING THE GEAR, LEADING EDGE ANNUNCIATOR FLICKERING AMBER/GREEN. THE FE REPORTS WING OVERHEAT AND ALSO NOTES LOW DUCT PRESSURE. S.I.C AND F.E BEGIN TH
- [SDR CA100521003](https://openairdocs.org/sdr/CA100521003.md): Stand Off · broken · May 18, 2010 · Boeing 747SPJ6 · Fuselage Main, Attach Fittings
  > CARRYING A ROUTINE LEAK TEST ON NR 1 AUX PITOT SYSTEM. FOUND SYSTEM LEAKING. DISCOVERED THE NR 1 AUX PITOT PRESSURE TUBE (3/8IN) AT BS 1301, WORN OPENED. THE TUBE IS ATTACHED TO THE STRINGER WITH A CLAMP ON A STAND-OFF, THE STAND-OFF WAS FOUND BROKEN AND TH
- [SDR EIAA200900136](https://openairdocs.org/sdr/EIAA200900136.md): Oil System · leaking · Dec 18, 2009 · N482EV · Boeing 747212B · Turbine Engine Oil System
  > INFLIGHT SHUTDOWN OF ENGINE NR 1 FOR OIL LOSS. SERVICE ENG OIL, RAN AND INSPECTED ENG NR 1. FOUND OIL BEING BLOWN OUT OF RT 3.5 AND LT 3.5 UPPER BLEED VALVES. REPLACED NR 1 ENG EVC AND FILTER PER MM 75-31-09, 75-31-01. OPS CHECK NORMAL.
- [SDR EIAA200900132](https://openairdocs.org/sdr/EIAA200900132.md): Engine · malfunctioned · Nov 27, 2009 · N470EV · Boeing 747273C · Engine (Turbine/Turboprop)
  > NR 3 ENGINE SURGE/STALL AT MAX TAKEOFF POWER. EGT EXCEEDANCE 1088 DEG CELSIUS. REMOVED AND REPLACED NR 3 ENGINE PER WORKCARDS F7201, F7204, F7207, F7209. OPS & LEAK CHECK GOOD.
- [SDR 2008F00022](https://openairdocs.org/sdr/2008F00022.md): Fire Warning · activated · Oct 12, 2008 · N710CK · Boeing 7472B4B · Fire Detection
  > RECEIVED T FIRE WARNING ON CLIMBOUT AT 3500 FT ON NR 3 ENG. FILTER BYPASS LIGHT CAME ON, OIL PRESS WENT TO '0', OIL QTY WENT TO '0', OIL TEMP 160, N1, N2 NORMAL. FIRE HANDLE PULLED, BOTTLES WOULD NOT DISCHARGE (BOTH) HELD OVER 1 MIN.
- [SDR KCSA08068](https://openairdocs.org/sdr/KCSA08068.md): Fire Suppression · malfunctioned · Oct 12, 2008 · N710CK · Boeing 7472B4B · Fire Detection
  > RECEIVED FIRE WARNING ON CLIMBOUT AT 3500 FT ON NR 3 ENG FILTER BYPASS LIGHT CAME ON. OIL PRESS WENT TO "0", OIL QTY WENT TO "0", OIL TEMP 160, N1, N2 NORMAL. FIRE HANDLE PULLED, BOTTLES WOULD NOT DISCHARGE (BOTH) HELD OVER 1 MIN.
- [SDR EIA2008055](https://openairdocs.org/sdr/EIA2008055.md): Engine · making metal · Sep 29, 2008 · N485EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > DURING CRUISE ENCOUNTERED HEAVY SURGE NR 2 ENG ALONG WITH VIBRATION EPR DROPPED TO BOTTOM OF SCALE EGT REACHED YELLOW BAND, REDUCED POWER TO IDLE, VIBRATION PERSISTED, SHUT NR 2 ENGINE DOWN ENG WINDMILL OIL PRESS AT 28PSI. ANGLE GEARBOX AND MAIN GEARBOX CHIP
- [SDR EIA2008042](https://openairdocs.org/sdr/EIA2008042.md): Engine · malfunctioned · Aug 28, 2008 · N485EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > IN FLIGHT SHUT DOWN NR 2 ENGINE. C CRUISE RAIN, FL 4.0 WITH MODERATE TURB. NO THROTTLE MOVEMENT AND NOTED COMPRESSOR STALL.
- [SDR EIA2008041](https://openairdocs.org/sdr/EIA2008041.md): Skin · damaged · Aug 28, 2008 · N485EV · Boeing 747212B · Fuselage Main, Plate/Skin
  > FUSELAGE AT BS 460-480 TOP BL O TO 5-IL, ANTENNA LOCATION SURFACE SKIN SUNK. REPAIRED PER SRM 51-30-02.
- [SDR EIA2008040](https://openairdocs.org/sdr/EIA2008040.md): Sign · defective · Aug 28, 2008 · N485EV · Boeing 747212B · Emergency Lighting
  > EXIT SIGN OVER CREW STAIR FOUND BELOW 100 M/L. REPLACED PER AMM 20-51-01.
- [SDR EIA2008039](https://openairdocs.org/sdr/EIA2008039.md): Skin · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Fuselage Main, Plate/Skin
  > FUSELAGE BOTTOM SKIN AT BS 2061 5-45R CRACKED APPROX 2 INCHES. REPAIRED PER SRM 53-30-03 FIG 1.
- [SDR EIA2008038](https://openairdocs.org/sdr/EIA2008038.md): Stringer · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Fuselage Main, Longeron/Stringer
  > STATION 750 TO 760 STRINGER R-23 CRACKED. SPLICED AND REPAIRED PER 51-30-02.
- [SDR EIA2008037](https://openairdocs.org/sdr/EIA2008037.md): Floor Support · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Fuselage Miscellaneous Structure
  > MAIN DECK STATION 940 RBL 120 FLOOR PANEL SUPPORT CRACK. FABRICATED AND REPLACED IAW SRM 51-30-02.
- [SDR EIA2008036](https://openairdocs.org/sdr/EIA2008036.md): Skin · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Fuselage Main, Plate/Skin
  > FUSELAGE BS 740 TOP AFT OF VHF BL 0 SURFACE SKIN CRACKED. REPAIRED PER SRM 53-30-03 FIG 48.
- [SDR EIA2008034](https://openairdocs.org/sdr/EIA2008034.md): Light · inoperative · Aug 28, 2008 · N485EV · Boeing 747212B · Emergency Lighting
  > DURING EMG LT OPS TEST, FOUND V/D AFT CEILING EMERG. LT. INOP. REPLACED PER MM 33-51-00.
- [SDR EIA2008033](https://openairdocs.org/sdr/EIA2008033.md): Structure · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Wing Miscellaneous Structure
  > RT WING L/E DEVICE FAIRING AFT WEB ADJACENT UPPER CHORD AND LOWER CHORD CRACK AT 1 LES 1127. REPLACED PER SRM 57-20-03.
- [SDR EIA2008035](https://openairdocs.org/sdr/EIA2008035.md): Angle · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Nacelle/Pylon Miscellaneous Structure
  > NR 1 PYLON AT A7 NAL STATION 22/LOWER SURFACE OF MID SPAR WEB LT 1 EA ANGLE CRACKED. FAB NEW ANGLE PER DRW 65B90387. HEAT TREAT AND NDT. INSTALLED PER SRM 51-30-02.
- [SDR EIA2008032](https://openairdocs.org/sdr/EIA2008032.md): Frame · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Nacelle/Pylon, Frame/Spar/Rib
  > PYLON NR 4 AFT ENG MOUNT, RT (1/B) AFT FRAME, 1 HOLE CRACKED PER NDT REPORT. MFGR NEW FRAME PER DRW NR 65B90310 INSTALLED PER 51-30-02 - 51-24-11 - BAL5119.
- [SDR EIA2008030](https://openairdocs.org/sdr/EIA2008030.md): Structure · cracked · Aug 28, 2008 · N485EV · Boeing 747212B · Wing Miscellaneous Structure
  > LTW L/E DEVICE FAIRING AFT WEB ADJACENT LOWER CHORD AND UPPER CHORD. CRACK AT ILES 1127. REPAIRED PER 51-40-04 AND 57-20-03 SRM
- [SDR KCS2008F00006](https://openairdocs.org/sdr/KCS2008F00006.md): Fire Loop · malfunctioned · Jul 27, 2008 · N710CK · Boeing 7472B4B · Fire Detection
  > FIRE FAULT INDICATED ON P2 PANEL AFTER FLAPS UP. B-LOOP INDICATION ON NR 4 ENG TEMP OFF SCALE HIGH (NACELLE). FOLLOWED AOM PROCEDURE FOR ENG FIRE. VISUALLY CHECKED FOR INDICATION OF FIRE. NONE NOTED. NO RESTART ATTEMPTS. JETTISONED FUEL AND LANDED. (S)
- [SDR KCSA08035](https://openairdocs.org/sdr/KCSA08035.md): Engine · flamed out · May 14, 2008 · N710CK · Boeing 7472B4B · Engine (Turbine/Turboprop)
  > NR 2 ENG SURGED DURING CONSTANT PWR, ENG WAS SHUT DOWN (FLAME OUT). EPR 1.1, ENG BLEED OPEN, ANTI-ICE - OFF, IGN SW - OFF, FLT MODE - CRUISE, ALT - 31,100 FT,.84 MACH, NO ICING, NO TURB.
- [SDR EIA2007190](https://openairdocs.org/sdr/EIA2007190.md): Light · burned out · Oct 29, 2007 · N485EV · Boeing 747200F · Emergency Lighting
  > "MAIN DECK FWD RT CEILING EMERGENCY LIGHT INOP. REPLACED EE LIGHT ASSY ZONE A AND B".
- [SDR NWAA072866717](https://openairdocs.org/sdr/NWAA072866717.md): Engine · flamed out · Aug 16, 2007 · N617US · Boeing 747251F · Engine (Turbine/Turboprop)
  > DURING CRUISE, THE NR 3 ENGINE FLAMED OUT. APPROXIMATELY 60 SECONDS AFTER THE FLAME-OUT, THE NR 3 ENGINE FUEL ICING LIGHT ILLUMINATED. THE COM PROCEDURE WAS FOLLOWED AND THE ENGINE WAS RESTARTED AT FL380. THE FLIGHT CONTINUED TO NRT AND LANDED WITHOUT FURTH
- [SDR EIA2007005](https://openairdocs.org/sdr/EIA2007005.md): Plug · leaking · Jan 22, 2007 · N485EV · Boeing 747212B · Turbine Engine Oil System
  > FLT 906, STATION PVG, "IN FIGHT SHUTDOWN OF NR 1 ENGINE, NO OIL QTY, OR PRESSURE." ON CLIMB-OUT THROUGH FL 310, F/E NOTED OIL QTY DECREASING AND PRESS FLUX CONTACTED DISPATCH AND WAS DIRECTED TO RETURN TO PVG FOR MX. MX FOUND "NR 1 ENGINE GEAR BOX CHIP DETECT
- [SDR KCSA06065](https://openairdocs.org/sdr/KCSA06065.md): Fuel Sys · leaking · Jul 29, 2006 · N705CK · Boeing 747246F · Engine Fuel and Control
  > NR 2 ENG FUEL ICING LIGHT ILL OPERATED HEATER PER AOM. LIGHT STAYED ON. VISUALLY INSPECTED ENG. FOUND FUEL LEAKING. SHUT ENGINE DOWN. REPLACED FUEL PUMP PER JT9D MM 73-11-01. MOTOR & RUN TEST GOOD PER AMM 72-00-00.
- [SDR EIA2006093](https://openairdocs.org/sdr/EIA2006093.md): Bleed Valve · failed · Jul 10, 2006 · N471E · Boeing 747273C · Compressor Bleed Valve
  > NR 3 ENGINE NO BLEED SHIFT, THROTTLE LIMITED. REMOVED AND REPLACED 3.5 BLEED VALE, PRBC, AND FUEL CONVERTER, OPS CHECK GOOD IAW 75-32-01, 75-32-06 AND 71-00-00 TEST 9.
- [SDR WRNA200600011](https://openairdocs.org/sdr/WRNA200600011.md): Fuel Control · malfunctioned · Apr 25, 2006 · N524UP · Boeing 747200 · Fuel Control/Turbine Engines
  > AFTER TAKEOFF NR 4 ENGINE EGT STARTED FLUCTUATING AND STARTED TO CLIMB PAST 900 DEGREES, REDUCED POWER TO 1.29 EPR. AFTER POWER REDUCTION TEMPERATURE WAS STILL 850 DEGREES, EPR WAS LOWER (1.25) THAN OTHER J ENGINES. ACFT RETURNED TO MIA AND MADE A SAFE LANDI
- [SDR WRNA200600008](https://openairdocs.org/sdr/WRNA200600008.md): Engine · shutdown · Apr 2, 2006 · N524UP · Boeing 747200 · Engine Oil Pressure
  > PRECAUTIONARY SHUTDOWN NR 4 ENGINE DUE TO LOSS OF OIL PRESSURE, ALL OTHER INDICATIONS NORMAL. WINDMILLING OIL PRESSURE STAYED ABOVE 10 PSI. PERFORMED INLET & EXHAUST VISUAL INSPECTION, NO DEFECTS. PERFORMED WINDMILL INSPECTION PER MM 72-00-00 PG 682 W/X 3F
- [SDR WRNA200600009](https://openairdocs.org/sdr/WRNA200600009.md): Packing · damaged · Apr 2, 2006 · N524UP · Boeing 747200 · Turbine Engine Oil System
  > IN CRUISE OIL PRESSURE LIGHT FLASHING, EGT, N1, N2, OIL TEMP NORMAL OIL PRESSURE 40 PSI, OIL QTY. PERFORMED ENGINE FAILURE PRECAUTIONARY SHUTDOWN CHECKLIST. DIVERTED TO CLOSEST AIRPOR. ENGINE WINDMILLING FLT TIME 20 - 25 MINS, PART OF THAT TIME ENGINE OIL P
- [SDR WRNA200600007](https://openairdocs.org/sdr/WRNA200600007.md): Engine · shutdown · Mar 31, 2006 · N524UP · Boeing 747200 · Engine (Turbine/Turboprop)
  > NUMBER 4 ENGINE COMPRESSOR STALL BELOW 60 KTS, SHUTDOWN ENGINE, EGT WENT TO 1090 FOR 3 SECONDS. PERFORMED BORESCOPE INSPECTION OF LPC, HPC, COMBUSTION CHAMBER ASSY, HPT AND LPT, IAW 72-00-00 PG 601, NO DEFECTS NOTED. PERFORMED OVER TEMPERATURE VISUAL INSPECT
- [SDR EIA200637](https://openairdocs.org/sdr/EIA200637.md): Control Valve · out of adjust · Mar 21, 2006 · N485EV · Boeing 747212B · Compressor Bleed Governor
  > WHEN PACKS TURNED ON AFTER T/O, COCKPIT FILLED WITH ACIDIC, SWEET FUMES. ISOLATED PACKS AND BLEED AIR VALVES, WAS UNABLE TO ISOLATE SOURCE. RETURNED TO FIELD. FOUND ENGINE EVC OUT OF TRIM. TRIMMED PER 747MM 71-00-00 TEST 8, PG 580C GROUND RAN FOR 1.5 HOURS
- [SDR 06012](https://openairdocs.org/sdr/06012.md): Engine · leaking · Feb 15, 2006 · N713CK · Boeing 7472B4B · Turbine Engine Oil System
  > NR 1 ENG LOST OIL QTY 1 GAL, 1/2 HR SHUT ENG DOWN AT 0930Z WITH 1.25GAL REMAINING. PERFORMED WINDMILLING ENG PROCEDURE AT 1000, 1030, 1050Z. WINDMILLING OP 19 PSI TEMP 50 DEGREE C 1000Z QTY.5 GAL QTY IND 0 GAL AT 1025Z OP 21 PSI TEMP 40 DEGREE. OP ONLY WEN

Next page: https://openairdocs.org/engine/pratt-whitney-jt9d-7j/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = 'JT9D7J'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/pratt-whitney-jt9d-7j/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.