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

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

Newest first. General aviation reporting is voluntary.

Page 1 of 3 · 129 reports

- [SDR EIAA2011007](https://openairdocs.org/sdr/EIAA2011007.md): Engine · stalled · Jan 21, 2011 · N485EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > ON LANDING NR 2 ENGINE N1 WENT TO 75 PERCENT FOLLOWED BY COMPRESSER STALL DURING REVERSE, FOLLOWED BY FIRE WARNING LIGHTS. LEFT AND RIGHT FIRE BOTTELS USED TO EXTINGUSH FIRE. EIDS RECORDED EXCEEDANCE OF 1300 FOR 353 SEC. REMOVED AND REPLACED NUMBER 2 ENGINE
- [SDR EIA2008019](https://openairdocs.org/sdr/EIA2008019.md): Engine · failed · Apr 23, 2008 · N481EV · Boeing 747132 · Engine (Turbine/Turboprop)
  > NUMBER 3 ENGINE FAILED AT 35,000 FEET DESCENT TO FL 32.0 NORMAL INFLIGHT RESTART ALL ENGINE PARAMETERS WERE NORMAL. PERFORMED ENG WINDMILL INSPECTION PER B747MM 72-00-00 CONFIG 1 PAGE 684(O), NO DEFECTS NOTED. PERFORMED ENGINE IDLE GROUND RUN PER B747 MM 71-
- [SDR KCSA071372](https://openairdocs.org/sdr/KCSA071372.md): Frame · cracked · Sep 13, 2007 · N713CK · Boeing 7472B4B · Fuselage Main, Frame
  > B S 520 FUSELAGE FRAME CRACKED AT STR-11L CUTOUT.
- [SDR KCSA071266](https://openairdocs.org/sdr/KCSA071266.md): Bulkhead · scratched · Jul 30, 2007 · N710CK · Boeing 7472B4B · Nacelle/Pylon, Bulkhead/Firewall
  > NR1 PYLON STA-221, AFT BULKHEAD HAS SCRATCH ABOVE HYDRULIC LINE FEED THROUGH.
- [SDR KCSA071267](https://openairdocs.org/sdr/KCSA071267.md): Stringer · damaged · Jul 30, 2007 · N710CK · Boeing 7472B4B · Fuselage Main, Longeron/Stringer
  > BS 668 STRINGER 44L HAS SMALL DAMAGED AREA.
- [SDR KCSA071268](https://openairdocs.org/sdr/KCSA071268.md): Seat Track · damaged · Jul 30, 2007 · N710CK · Boeing 7472B4B · Fuselage, Seat/Cargo Attach Fittings
  > STA-1250 LBL-99 SEAT TRACK HAS DAMAGE TO CARGO SYSTEM LOCKING HOLES.
- [SDR EIA2006223](https://openairdocs.org/sdr/EIA2006223.md): Sensor · malfunctioned · Aug 22, 2006 · N477EV · Boeing 747SR46 · Engine Temperature Indicating System
  > DURING DESCENT INTO EDF, FL90, FLIGHT CREW REPORTED FEELING RUMBLE IN AIRFRAME. FLIGHT CREW NOTICE NR 4 ENGINE INDICATED N1 & N2 WERE LOWER THAN OTHER ENGINES. ENGINE WOULD NOT RESPOND TO THROTTLE MOVEMENT, ENGINE SHUTDOWN. PERFORMED EXTERNAL INSPECTION, EN
- [SDR EIA200677](https://openairdocs.org/sdr/EIA200677.md): Clutch · malfunctioned · May 16, 2006 · N485EV · Boeing 747212B · Engine Thrust Reverser
  > ALL FOUR ENGINE THROTTLE LEVERS WILL NOT GO INTO REVERSE. CLUTCH PACK REMOVED AT 0300Z/17. CONFIRMED CLUTCH PACK FAULTY. T/R LEVERS SEIZED WITH CLUTCH PACK ISOLATED. CLUTCH PACK ON HAND. EST COMPLETION AT 0400 - 0600Z/18.
- [SDR KCSA06039](https://openairdocs.org/sdr/KCSA06039.md): Engine · malfunctioned · May 12, 2006 · N710CK · Boeing 7472B4B · Engine (Turbine/Turboprop)
  > NR 3 ENG FLAMED OUT ON DESCENT, PERFORMED RAPID RESTART PROCEDURE TWICE NO START. PERFORMED ENG RESTART CHECKLIST AT 10,000 ENG OPERATED NORMALLY. PERFORMED INSPECTION PER FIM 71-01-00 PG 209, FOUND NO DEFECTS. PERFORMED ENG NR 3 RUN PER 71-00-00 B747 MM PG
- [SDR EIA2006075](https://openairdocs.org/sdr/EIA2006075.md): Sensor · damaged · May 12, 2006 · N486EV · Boeing 747212B · Engine Controls
  > AT FL 380, PWR WAS REDUCED FOR SPEED CONTROL AND WAS NOT RESPONSIVE UNTIL REACHING FL 250. REPLACED NR 3 TT2 SENSOR AS PER MM 72-21-04, OPS CHK GOOD PER MM 71-00-00 TEST 3.
- [SDR EIA2006066](https://openairdocs.org/sdr/EIA2006066.md): Engine · stalled · May 11, 2006 · N486EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > WHILE DESCENDING FORM FL370 TO FL350, NR 3 ENGINE WENT INTO UNRECOVERABLE STALL. NO FLAMEOUT, VIBRATION OR EXCEEDENCES NOTED. NO SUCCESS WITH TWO ATTEMPTS TO RELIGHT. RAN IN-FLIGHT SHUTDOWN PROCEDURES, WAS ABLE TO RESTART AT FL 180. CHECKED PS3, PT3 PER MM
- [SDR EIA2006065](https://openairdocs.org/sdr/EIA2006065.md): Engine · oil consumption · May 2, 2006 · N478EV · Boeing 747SR46 · Turbine Engine Oil System
  > AIRCRAFT NR 1 ENGINE HIGH OIL CONSUMPTION. SENT TO MZJ TO REPLACE ENGINE, 663076 OFF, 662500 ON.
- [SDR 0600226716](https://openairdocs.org/sdr/0600226716.md): Floorbeam · cracked · Jan 20, 2006 · N617US · Boeing 747251F · Fuselage Main, Floor Beam
  > DURING H-CHECK, FOUND CRACK ON UPPER DECK FLOORBEAM FASTENER HOLE AT BS 340 RBL 42. REPAIRED IAW EA 67-165190.
- [SDR 0501576718](https://openairdocs.org/sdr/0501576718.md): Frame · corroded · Sep 16, 2005 · N618US · Boeing 747251F · Fuselage Main, Frame
  > DURING L-CHECK FOUND CORROSION AND CRACK ON FRAME IN LT BLG WHEEL WELL AT BS 1146. REPAIRED IAW EA 67-165244.
- [SDR 0501566718](https://openairdocs.org/sdr/0501566718.md): Frame · cracked · Sep 15, 2005 · N618US · Boeing 747251F · Fuselage Main, Frame
  > DURING L-CHECK FOUND CRACK IN FRAME AT BS 380 S27R AND S28R. REPAIRED IAW EA 67-165241.
- [SDR EIA2004107](https://openairdocs.org/sdr/EIA2004107.md): Engine · malfunctioned · Oct 7, 2004 · N481EV · Boeing 747132 · Engine (Turbine/Turboprop)
  > ON TAKE OFF ROLL, NR 3 ENGINE WOULD NOT SPOOL UP. THRUST LEVER AT 3/4 TRAVEL, EPR 1.034, N1 42.3 PERCENT, N2 95.8 PERCENT, EGT 761 DEG, FUEL FLOW 4795. REMOVED NR 3 EVC. OP'S AND LEAK CHECK OK PER MM 75-31-01. PERFORMED ALTERNATE EVC TRIM TEST NR 08A PER M
- [SDR EIA2004045](https://openairdocs.org/sdr/EIA2004045.md): Warning Light · illuminated · Jul 7, 2004 · N480EV · Boeing 747121 · Central Warning
  > AFTER TAKEOFF (3000 FT), NR 4 ENGINE FIRE SWITCH ILLUMINATED BELL SOUNDED AND MACELL INDICATOR READ APPROX 9.5 ON A/B LOOPS PERFORMED ENGINE SHUT DOWN IAW EMERGENCY CHECKLIST NR 4 THRUST LEVER WOULD NOT MOVE FWD OF REFERENCE NR 2 AND NR 4 ENG ICING LIGHT ILLUM
- [SDR EIA2004036](https://openairdocs.org/sdr/EIA2004036.md): Warning System · activated · May 13, 2004 · N481EV · Boeing 747132 · Engine Oil Quantity
  > NR 2 ENGINE OIL QUANTITY DECREASED TO 1/16 LOW OIL PRESS LIGHT ILLUMINATED. SHUT DOWN NR 2 ENG AT 0305Z WINDMILL OIL PRESSURE 15 PSI FOR 57 MINUTES.
- [SDR EIA2004005](https://openairdocs.org/sdr/EIA2004005.md): Guide Vane · missing · Jan 12, 2004 · N479EV · Boeing 747132 · Turbine Engine Bypass Section
  > ON POST FLIGHT WALKAROUND FOUND FAN EXIT GUIDE VANE MISSING AT 6:30 POSITION ON NR 4 ENGINE. VANE STRUCK T/E OF T/R SLEEVE CAUSING TEAR AT 6:30 POSITION AND PUT A HOLE IN THE LT INBOARD COWL. TRANSFERRED TO COI NR 053 MAX 50 HRS FLY BACK ENGINE SCHEDULED AT
- [SDR EIA2003045](https://openairdocs.org/sdr/EIA2003045.md): Valve · failed · Mar 2, 2003 · N486EV · Boeing 747212B · Air Intake Anti/De-Ice System
  > NR 3 ENGINE ANTI-ICE VALVE INOPERATIVE. REPLACED NR 3 ENGINE ANTI-ICE VALVE, OPS AND LOCK CHECK, OK. IAW 30-21-03 AND 30-21-00.
- [SDR 200200185](https://openairdocs.org/sdr/200200185.md): Flange · cracked · Mar 21, 2002 · N479EV · Boeing 747132 · Turbine Section
  > CRACK FROM -R- FLANGE LIGHTENING HOLE TO THE OUTER FLANGE AT THE 6 O'CLOCK POSITION. WELDED PER EIA ECRA 685755-72-010-1 AND 747 MM 72-53-02.
- [SDR P5CA0100594](https://openairdocs.org/sdr/P5CA0100594.md): Engine · malfunctioned · Sep 20, 2001 · N922FT · Boeing 7472U3B · Engine (Turbine/Turboprop)
  > WHEN THROTTLES WERE RETARDED FOR DESCENT, NR 2 ENG HAD EXCESSIVE VIBRATION FOLLOWED BY UNCLEARABLE STALL CONDITION. ENG SHUTDOWN WAS ACCOMPLISHED NORMALLY. LUBRICATED BLEED FEEDBACK PUSH PULL CABLE SYSTEM. INSPECTED ENG INLET EXHAUST BLEEDS. OPS CHECKED OK
- [SDR EIA2001116](https://openairdocs.org/sdr/EIA2001116.md): Engine · failed · Mar 20, 2001 · N481EV · Boeing 747132 · Engine (Turbine/Turboprop)
  > CGK - NR 1 ENGINE SHUTDOWN IN FLIGHT AT 39,000 FEET, ON DESCENT TRIED TO START. N2 56 PERCENT EGT CLIMBED TO 948 RAPIDLY. ENGINE SHUTDOWN AFTER GOING THROUGH TURBULENCE. WINDMILLING CHECK PERFORMED, CHIP DETECTORS CHECKED GOOD. REPLACED OIL FILTER AND FUEL
- [SDR EIA2000042](https://openairdocs.org/sdr/EIA2000042.md): Engine · fod · Aug 23, 2000 · N477EV · Boeing 747SR46 · Engine (Turbine/Turboprop)
  > PHL - ON TAKEOFF ROLL, INGESTED 1-2 GEESE IN NR 1 ENGINE. ABORTED TAKEOFF. MAJOR DAMAGE TO NR 1 ENGINE, FLAMEOUT, OVERTEMP AND SEIZED. SUSTAINED IMPACT DAMAGE TO GROUP 1 LT NR 2 AND NR 4 LED''S. REPLACED GROUP 1 LT NR 2 AND NR 4 LED''S. REPLACED NR 1 ENGI
- [SDR CA981230051](https://openairdocs.org/sdr/CA981230051.md): Tire · failed · Dec 11, 1998 · Boeing 747238B · Tire
  > (CAN) REPORTED BY TOWER, FOUND RECAP ON RUNWAY AFTER DEPARTURE, AIRCRAFT RETURNED AND FOUND NR 6 TIRE BLOWN, CHANGED TIRE AND AXLE MATE.
- [SDR EIAA980326](https://openairdocs.org/sdr/EIAA980326.md): Engine · birdstrike · Oct 16, 1998 · N485EV · Boeing 747212B · Engine (Turbine/Turboprop)
  > HKG - NR 1 ENGINE STALLED AFTER BIRDSTRIKE, EGT PEGGED GAUGE, N1, N2, EPR AND FUEL FLOW ROLLED BACK TO APPROX 60 PERCENT N1, NORMAL ENGINE OPERATION RETURNED AFTER APPROX 5 SECONDS. ENGINE WAS SHUTDOWN AND RETURNED TO HKG. (M)
- [SDR EIAA980320](https://openairdocs.org/sdr/EIAA980320.md): Switch · failed · Oct 11, 1998 · N470EV · Boeing 747273C · Engine Start Valves/Controls
  > JFK - IN CRUISE, NR 4 ENGINE START VALVE OPEN LIGHT CAME ON. SHUTDOWN ENGINE. N1 32 PERCENT, N2 24 PERCENT, OIL PRESSURE 20 PSI. REPLACED START VALVE SWITCH PER MM 80-11-05. OPS CHECK GOOD. INSPECTED ENGINE PER MM 72-00. (M)
- [SDR TWRA9844](https://openairdocs.org/sdr/TWRA9844.md): Turbine · cracked · Aug 6, 1998 · N617FF · Boeing 747121 · Turbine Section
  > DURING ROUTINE INSPECTION, AN.9375 INCH CRACK WAS FOUND ON THE LOW PRESSURE TURBINE CASE EXITING OUT OF THE EGT THERMAL COUPLE PORT AT THE 1 O'CLOCK POSITION. ENGINE WAS REMOVED FROM SERVICE. (M)
- [SDR 9809696614](https://openairdocs.org/sdr/9809696614.md): Engine · flamed out · Jun 26, 1998 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)
  > WHILE CLIMBING THROUGH FL340, THE NR 2 ENGINE FLAMED OUT. THE ENGINES WERE RESTARTED APPROXIMATELY ONE MINUTE LATER WITH NORMAL INDICATIONS. THE FLIGHT CONTINUED TO SEL WITHOUT DIFFICULTY. MAINTENANCE INSPECTED THE ENGINES AND PERFORMED ENGINE RUNS WITH NO
- [SDR CALA9801144](https://openairdocs.org/sdr/CALA9801144.md): Engine · failed · Jun 19, 1998 · N78019 · Boeing 747230B · Engine (Turbine/Turboprop)
  > THE NR 1 ENGINE EXPERIENCED COMPRESSOR STALLS AND AUTOMATICALLY SHUTDOWN AFTER TAKEOFF FROM GUM. THE ENGINE FAILURE WAS ACCOMPANIED BY A LOUD BANG. FUEL WAS DUMPED AND THE AIRCRAFT WAS RETURNED TO GUM WHERE IT LANDED WITHOUT INCIDENT. INSPECTION BY MAINTENA
- [SDR P5CA9800797](https://openairdocs.org/sdr/P5CA9800797.md): Seal · leaking · May 28, 1998 · N854FT · Boeing 747122 · Turbine Engine Accessory Drive
  > NR 4 ENGINE LOST OIL QTY AND PRESSURE. OIL PRESSURE LIGHT CAME ON AND TEMP BEGAN TO RISE. ENGINE SHUT DOWN. FOUND OIL LEAK TO BE FROM CSD PAD. REPLACED CSD SEAL PER BOEING M/M 24-11-01, LEAK CHECK OK.
- [SDR 9807656729](https://openairdocs.org/sdr/9807656729.md): Compressor · stalled · Apr 26, 1998 · N629US · Boeing 747251F · Turbine Engine Compressor Section
  > DURING LANDING ROLLOUT, WHILE IN REVERSE THRUST, THE NR 3 ENGINE EXPERIENCED A MINOR COMPRESSOR STALL. EGT REACHED MAXIMUM OF 740C BEFORE THE ENGINE WAS SHUT DOWN. MAINTENANCE INSPECTED THE ENGINE WITH NO DEFECTS NOTED AND THE AIRCRAFT WAS RETURNED TO SERVIC
- [SDR 9806976718](https://openairdocs.org/sdr/9806976718.md): Tachometer · malfunctioned · Apr 19, 1998 · N618US · Boeing 747251F · Engine RPM Indicating System
  > DURING TAKEOFF ROLL AT APPROXIMATELY 115 KTS, THE NR 4 ENGINE N1 RPM INDICATION MALFUNCTIONED. THE TAKEOFF WAS ABORTED. MAINTENANCE PLACED THE NR 4 ENGINE N1 INDICATION SYSTEM ON MEL AND THE AIRCRAFT RETURNED TO SERVICE.
- [SDR CA980417004](https://openairdocs.org/sdr/CA980417004.md): Localizer · malfunctioned · Mar 28, 1998 · Boeing 747238B · Localizer/VOR System
  > (CAN) ON ILS APPROACH, CAPTAIN'S GLIDE SLOPE SHOWED FULL SCALE HIGH. ON PASSING NDB/BEACON AT WHAT SHOULD HAVE BEEN FL 230, AIRCRAFT WAS BELOW GLIDE SLOPE, FIRST OFFICER'S INDICATOR SHOWED FULL SCALE BELOW GLIDE SLOPE. CORRECTION MADE AND A/C LANDED. FOUND
- [SDR 9804966613](https://openairdocs.org/sdr/9804966613.md): Engine · malfunctioned · Mar 24, 1998 · N613US · Boeing 747251B · Engine (Turbine/Turboprop)
  > DURING CRUISE, THE CREW NOTICED THE NR 3 ENGINE OIL CONSUMPTION TO BE UNUSUALLY HIGH. THE OIL CONSUMPTION DECREASED WITH LOWER POWER SETTINGS SO THE AIRCRAFT DIVERTED TO MSP FOR MAINTENANCE. THE ENGINE WAS NOT SHUT DOWN AND THE FLIGHT WAS COMPLETED WITHOUT F
- [SDR 9804876718](https://openairdocs.org/sdr/9804876718.md): Compressor · stalled · Mar 22, 1998 · N618US · Boeing 747251F · Turbine Engine Compressor Section
  > WHILE AT CRUISE FL350, THE NR 1 ENGINE COMPRESSOR STALLED. THE ENGINE WAS SHUT DOWN AFTER REACHING AN EGT OF 1002C FOR 5 SECONDS. NO RESTART WAS ATTEMPTED. THE FLIGHT CONTINUED TO KIX WITHOUT FURTHER DIFFICULTY. THE AIRCRAFT WAS REMOVED FROM SERVICE AND TH
- [SDR 9804836718](https://openairdocs.org/sdr/9804836718.md): Breather Tube · cracked · Mar 20, 1998 · N618US · Boeing 747251F · Turbine Engine Oil System
  > WHILE IN CRUISE, THE NR 1 ENGINE OIL QUANTITY WENT TO ZERO WITH THE OIL PRESSURE DROPPING RAPIDLY DOWN TO 8 TO 9 PSI. THE ENGINE WAS SHUT DOWN PER COM PROCEDURE AND THE AIRCRAFT RETURNED TO ANC WITHOUT DIFFICULTY. MAINTENANCE INSPECTED THE ENGINE AND REPLACE
- [SDR 9803156614](https://openairdocs.org/sdr/9803156614.md): Compressor · stalled · Feb 14, 1998 · N614US · Boeing 747251B · Turbine Engine Compressor Section
  > AFTER LANDING AND JUST AFTER STOWING THE THRUST REVERSERS, THE CREW NOTED THE LOW OIL PRESSURE WARNING LIGHT ON AND EGT INDICATION ABOVE REDLINE FOR THE NR 4 ENGINE. THE ENGINE WAS SHUT DOWN AFTER REACHING A MAX EGT OF 1132C FOR 73 SECONDS. MAINTENANCE REPLA
- [SDR CALA9800207](https://openairdocs.org/sdr/CALA9800207.md): Sense Line · cracked · Feb 9, 1998 · N14024 · Boeing 747238B · Compressor Bleed Control
  > THE NR 2 ENGINE LOST PARTIAL POWER WHILE IN CRUISE FLIGHT FROM HNL TO NRT. THE EPR DROPPED FROM 1.40 TO 1.13 AND N1 DROPPED FROM 95 PERCENT TO 85 PERCENT. THE AIRCRAFT WAS RETURNED TO HNL WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 2 ENGINE P
- [SDR 9802296613](https://openairdocs.org/sdr/9802296613.md): Engine · flamed out · Feb 6, 1998 · N613US · Boeing 747251B · Engine (Turbine/Turboprop)
  > JUST BEFORE TOP OF DESCENT AT FL370, THE NR 4 ENGINE FLAMED OUT. THE ENGINE WAS RESTARTED NORMALLY AT FL310 AND PERFORMED WITHOUT ANY PROBLEMS FOR THE REMAINEDER OF THE FLIGHT. MAINTENANCE VISUALLY INSPECTED THE ENGINE WITH NO DEFECTS NOTED. THE ENGINE FUEL
- [SDR 9802206729](https://openairdocs.org/sdr/9802206729.md): Engine · failed · Feb 1, 1998 · N629US · Boeing 747251F · Engine (Turbine/Turboprop)
  > APPROXIMATELY 30 MINUTES AFTER TAKEOFF, THE NR 2 ENGINE FILTER BYPASS WARNING LIGHT ILLUMINATED. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT RETURNED TO ANC. MAINTENANCE FOUND THE NR 2 ENGINE MAIN OIL FILTER CLOGGED. THE AIRCRAFT WAS FERRIED ON THREE ENGINES
- [SDR CALA9800104](https://openairdocs.org/sdr/CALA9800104.md): Garlock Seal · leaking · Jan 23, 1998 · N33021 · Boeing 747243B · Turbine Engine Oil System
  > THE NR 3 ENGINE OIL QUANTITY DECREASED TO ZERO WHILE EN ROUTE. THE NR 3 ENGINE WAS SHUTDOWN AND THE AIRCRAFT LANDED AT HNL WITHOUT INCIDENT. MAINTENANCE FOUND OIL LEAKING FROM CSD DRIVE PAD. THE GARLOCK SEAL AND ALL OIL SEALS WERE REMOVED AND REPLACED IAW M
- [SDR TWRA9802](https://openairdocs.org/sdr/TWRA9802.md): Fuel Control · malfunctioned · Jan 13, 1998 · N608FF · Boeing 747131 · Fuel Control/Turbine Engines
  > WHILE CRUISING AT F/L 330, SMOOTH AIR, NR 3 ENGINE FLAMED OUT, FUEL PANEL SETTING WAS TANK TO ENGINE. USED TOWER AIR PROCEDURES FOR INFLIGHT START ENGINE RESTARTED. ALL PARAMETERS NORMAL. PERFORMED NR 3 ENGINE FLAMEOUT TROUBLESHOOTING PROCEDURES IAW MM 71-0
- [SDR 9800366717](https://openairdocs.org/sdr/9800366717.md): Engine · failed · Jan 5, 1998 · N617US · Boeing 747251F · Engine (Turbine/Turboprop)
  > ON FINAL APPROACH, THE CREW NOTICED THE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED FOR THE NR 1 ENGINE. AFTER LANDING, THE NR 1 ENGINE EGT EXCEEDED REDLINE AND THE CREW SHUT DOWN THE ENGINE. MAINTENANCE REPLACED THE NR 1 ENGINE.
- [SDR 9724566717](https://openairdocs.org/sdr/9724566717.md): Engine · flamed out · Dec 31, 1997 · N617US · Boeing 747251F · Engine (Turbine/Turboprop)
  > AT APPROXIMATELY 3000 FEET WHILE DESCENDING TO LAND, THE NR 1 ENGINE FLAMED OUT. MAX EGT AFT FLAMEOUT WAS 800C. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE VISUALLY INSPECTED THE ENGINE INCLUDING A BORESCOPE WITH NO DEFECTS FOUND. NUMEROUS COMPRESSOR
- [SDR EIAA970202](https://openairdocs.org/sdr/EIAA970202.md): Line · leaking · Nov 4, 1997 · N481EV · Boeing 747132 · Turbine Engine Oil System
  > ANC - LOG PAGE: F47048 - 2.5 HOURS INTO FLIGHT, NR 1 ENGINE OIL QTY WAS DOWN TO 1/2 ON THE GAUGE. REMOVED EXHAUST PLUG AND FOUND TRACE OF OIL AROUND PRESSURE LINE TO NR 6 BEARING COMPARTMENT. REMOVED HEAT SHIELD FROM PRESSURE AND SCAVENGE LINE, TIGHTENED LI
- [SDR P5CA9701692](https://openairdocs.org/sdr/P5CA9701692.md): Csd Seal · leaking · Oct 18, 1997 · N853FT · Boeing 747122 · Turbine Engine Accessory Drive
  > NR 4 ENGINE OIL QUANTITY STEADILY DECREASED TO ZERO FROM FULL, APPROXIMATELY 1 HOUR AFTER DEPARTURE. ENGINE SHUT DOWN WHEN OIL PRESSURE LIGHT ILLUMINATED. REPLACED NR 4 ENGINE CSD DRIVE SEAL, SEAL RETAINER O-RING, CSD INPUT AND OUTPUT SHAFT PACKING PER BOEIN
- [SDR 9719276612](https://openairdocs.org/sdr/9719276612.md): Evc · malfunctioned · Oct 14, 1997 · N612US · Boeing 747251B · Compressor Bleed Control
  > DURING FINAL APPROACH, THE NR 1 ENGINE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED WITH THE INDICATED PRESSURE AT 25 PSI AND FALLING. THE EGT INDICATED 850C AND THE ENGINE WAS SHUT DOWN. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ENGINE
- [SDR EIAA970199](https://openairdocs.org/sdr/EIAA970199.md): Fuel Filter · contaminated · Oct 14, 1997 · N481EV · Boeing 747132 · Engine Fuel Distribution
  > HKG - LOG PAGE: F47136 - UNSCHEDULED THRUST LOSS OF THROTTLE MOVEMENT DURING DESCENT. PERFORMED ENGINE SHUT DOWN. INSPECTED ENGINE, FOUND FUEL FILTER CONTAMINATED, REPLACED FUEL FILTER PER MM 73-11-02. LEAK CHECKED GOOD, PERFORMED ENGINE RUN. (X)
- [SDR 9717686730](https://openairdocs.org/sdr/9717686730.md): Start Valve · failed · Sep 18, 1997 · N630US · Boeing 7472J9F · Engine Start Valves/Controls
  > DURING CRUISE FLIGHT, NR 2 ENGINE STAT VALVE OPEN LIGHT ILLUMINATED. PERFORMED NR 2 ENGINE PRECAUTIONARY SHUTDOWN. FLIGHT CREW DUMPED 100,000 LBS OF FUEL AND DIVERTED TO MSP. MAINTENANCE REPLACED THE STARTER AND START VALVE.

Next page: https://openairdocs.org/engine/pratt-whitney-jt9d-7f/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 = 'JT9D7F'
ORDER BY difficulty_date DESC
```

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

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