# Pratt & Whitney JT9D-7A

- Type: Engine model (FAA registry)
- Registry code: 51543
- Manufacturer (registry): P & W
- Model: JT9D-7A
- Engine type: Turbo-fan
- Power: 46,150 lb thrust
- Data sheet: [TCDS E20EA](https://openairdocs.org/tcds/E20EA) (OpenAirDocs)
- Holder: Pratt & Whitney
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-jt9d-7a

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2021-09-10](https://openairdocs.org/ad/2021-09-10): Turbine Engine Compressor Section · Pratt & Whitney JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective May 27, 2021
- [AD 2009-04-18](https://openairdocs.org/ad/2009-04-18): 2nd stage high pressure turbine (HPT) · Pratt & Whitney Division JT9D-7, JT9D-7A, JT9D-7AH and 3 more. Effective May 5, 2009
- [AD 2004-10-01](https://openairdocs.org/ad/2004-10-01): 6th Stage Low Pressure Turbine (LPT) Air Seals · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 6 more. Effective Jun 15, 2004
- [AD 2003-24-12 R1](https://openairdocs.org/ad/2003-24-12-R1): Gearbox Pressure Tube · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Dec 18, 2003
- [AD 2001-04-11](https://openairdocs.org/ad/2001-04-11): High Pressure Turbine (HPT) Disks · Pratt & Whitney Division JT9D-20, JT9D-7, JT9D-7A and 7 more. Effective May 7, 2001
- [AD 2000-23-14](https://openairdocs.org/ad/2000-23-14): No. 4 Bearing Area · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 11 more. Effective Jan 19, 2001
- [AD 99-15-02](https://openairdocs.org/ad/99-15-02): Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 6 more. Effective Aug 16, 1999
- [AD 96-25-10](https://openairdocs.org/ad/96-25-10): Design Turbine Exhaust Case · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Feb 18, 1997
- [AD 93-19-02 R1](https://openairdocs.org/ad/93-19-02-R1): Diffuser Cases · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 6 more. Effective Oct 17, 1994
- [AD 94-15-16](https://openairdocs.org/ad/94-15-16): Engine Control System Accessories · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 9 more. Effective Oct 14, 1994
- [AD 90-23-19](https://openairdocs.org/ad/90-23-19): Air Seal · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 13 more. Effective Nov 23, 1990
- [AD 89-10-07](https://openairdocs.org/ad/89-10-07): Strut Insert Assembly · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 5 more. Effective May 30, 1989
- [AD 88-24-05](https://openairdocs.org/ad/88-24-05): Inner Airseal · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 5 more. Effective Dec 15, 1988
- [AD 86-09-01 R1](https://openairdocs.org/ad/86-09-01-R1): Turbine Vane Antirotation Pin Failure · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-59A and 9 more. Effective Jul 6, 1988
- [AD 85-12-02](https://openairdocs.org/ad/85-12-02): Centrifugal Oil Filter (COF) Bearings · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Jul 17, 1985
- [AD 82-26-03](https://openairdocs.org/ad/82-26-03): Manifold Assembly · Pratt & Whitney Division JT9D-7, JT9D-7A, JT9D-7AH and 3 more. Effective Jan 27, 1983
- [AD 74-10-05 R1](https://openairdocs.org/ad/74-10-05-R1): Turbine Nozzle Guide Vane · Pratt & Whitney Division JT9D-20, JT9D-7 and JT9D-7A. Effective Nov 17, 1980
- [AD 78-08-13](https://openairdocs.org/ad/78-08-13): Main Gearbox · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Apr 18, 1980
- [AD 78-16-05](https://openairdocs.org/ad/78-16-05): Sixth Stage Turbine Disks · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Sep 12, 1978
- [AD 78-17-08](https://openairdocs.org/ad/78-17-08): Fifteenth Stage Compressor Disks · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 5 more. Effective Sep 1, 1978
- [AD 76-20-03](https://openairdocs.org/ad/76-20-03): Seal Clearances · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 4 more. Effective Nov 16, 1977
- [AD 76-24-03](https://openairdocs.org/ad/76-24-03): Fan Blades · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Dec 30, 1976
- [AD 76-12-03](https://openairdocs.org/ad/76-12-03): Sixth Stage Turbine Disk · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Jun 22, 1976
- [AD 73-16-05](https://openairdocs.org/ad/73-16-05): Fourth and Fifth Stage Turbine Discs · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective Aug 15, 1973
- [AD 77-01-07](https://openairdocs.org/ad/77-01-07): Fifth Stage Turbine Hubs · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 4 more

Historical (superseded or no longer in force):

- [AD 2012-04-15](https://openairdocs.org/ad/2012-04-15) (historical): Engine · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-59A and 16 more. Effective Apr 23, 2012
- [AD 2007-05-17](https://openairdocs.org/ad/2007-05-17) (historical): Airworthiness Limitations Section (ALS) · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-7 and 15 more. Effective Apr 12, 2007
- [AD 2003-24-12](https://openairdocs.org/ad/2003-24-12) (historical): Gearbox pressure tube · Pratt & Whitney Division JT9D-3A, JT9D-7, JT9D-7A and 4 more. Effective Dec 18, 2003
- [AD 2002-08-11](https://openairdocs.org/ad/2002-08-11) (historical): Airworthiness Limitations Section (ALS) - Critical Life-Limited Parts · Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A and 17 more. Effective May 28, 2002
- [AD 2000-01-13](https://openairdocs.org/ad/2000-01-13) (historical): Pratt & Whitney Division JT9D-7, JT9D-70A, JT9D-7A and 13 more. Effective Feb 23, 2000
- [AD 99-08-12](https://openairdocs.org/ad/99-08-12) (historical): Maintenance Program, Mandatory Inspections · Pratt & Whitney Division JT9D-20J, JT9D-3A, JT9D-59A and 16 more. Effective May 13, 1999

## Information bulletins (advisory) (2)

- [SAIB NE-07-41](https://openairdocs.org/saib/NE-07-41): Pratt & Whitney (P&W) JT9D HPT 2nd Stage Vane/Disk Failures. Issued Aug 3, 2007
- [SAIB NE-02-01](https://openairdocs.org/saib/NE-02-01): . Issued Oct 5, 2001

## Registered aircraft

None registered with this engine model now.

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports (4)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20150309003599I](https://openairdocs.org/incident/20150309003599I), Mar 9, 2015: Boeing 747-121 (N747GE), Victorville, CA, Minor damage. The test engine general electric passport -20 15,00 pounds thrust cought fire, fuel was shut off, and fire suppression used.
- [Incident 20050613013899I](https://openairdocs.org/incident/20050613013899I), Jun 13, 2005: Boeing 747121 (N747GE), Victorville, CA, Minor damage. (-23) Boeing 747 flying testbed aircraft scraped #2 engine nacelle on landing. Number two engine (GP7200) is much larger than the p&w JT9D-7A, 747 engine.…
- [Incident 20021210033209I](https://openairdocs.org/incident/20021210033209I), Dec 10, 2002: Boeing 747121 (N747GE), Honolulu, HI, Minor damage. (-23) During approach noticed smoke trailing from no. 2 engine. After rollout, fire observed in no. 2 engine pylon. Crew evacuated aircraft from R2 door.…
- [Incident 19970522043209I](https://openairdocs.org/incident/19970522043209I), May 22, 1997: Boeing 747121 (N747GE), Mojave, CA, Minor damage. Turbine blade failure during cold soak test. Number 4 bearing support damage and exhaust plug seperation.

## Service difficulty reports (593, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR KCSA2018121909](https://openairdocs.org/sdr/KCSA2018121909), Dec 19, 2018: ENGINE. SHUTDOWN. ENGINE #4 SHUTDOWN IN FLIGHT. ENGINE WINDMILLED = 30 MINUTES. OIL PRESSURE 28 PSI. PERFORMED WINDMILL INSPECTION PER B747-400 AMM 72-00-00, NO DEFECTS NOTED. IN
- [SDR KCSA11029](https://openairdocs.org/sdr/KCSA11029), May 26, 2011: ENGINE. POWER LOSS. NR 1 ENGINE ROLLED BACK FUEL HEAT SHUTOFF AT FLIGHT 340 -16 TAT MACH .840. PERFORMED RAPID RESTART PER QRH PG 69. ALL NORMAL AFTER. PERFORMED FIM 71-01-00 DD, N
- [SDR KCSA11016](https://openairdocs.org/sdr/KCSA11016), Mar 26, 2011: ENGINE. FLAMED OUT. AT 1307Z, FL350, STABLE CRUISE FLIGHT, DURING FUEL HEAT APPLICATION, NR 1 ENG FLAME OUT. PERFORMED INFLIGHT ENGINE FAILURE/SHUTDOWN. OIL PRESS 14 PSI. ENG WINDM
- [SDR KCSA11014](https://openairdocs.org/sdr/KCSA11014), Mar 25, 2011: ENGINE. POWER LOSS. AT 0600Z IN STABLE CRUISE, FL350- SMOOTH AIR, IGNITION ON, FUEL HEAT ON, NR 1 ENG ROLLED BACK - MIN OIL PRESS 35 PSI - NO PARAMETERS EXCEEDED - NO FIRE SWITCH P
- [SDR KCSA101192](https://openairdocs.org/sdr/KCSA101192), Dec 2, 2010: SPAR. CORRODED. CORROSION LT WING FRONT SPAR LOWER CHORD AT WS 1475.
- [SDR KCSA101193](https://openairdocs.org/sdr/KCSA101193), Dec 2, 2010: BULKHEAD. CHAFED. 2 PYLON NAC STA 221.9 BULKHEAD WEB CHAFED AT HYD LINES.
- [SDR UPS08451576](https://openairdocs.org/sdr/UPS08451576), Jan 29, 2008: FAN BLADE. DAMAGED. AFTER LANDING IN MEM, MX REPORTED DAMAGE TO MULTIPLE FAN BLADES AND INSIDE OF COWLING ON NR 2 ENGINE. THERE WERE NO IN FLIGHT INDICATIONS. REMOVED AND REPLACED 
- [SDR UPS08451374](https://openairdocs.org/sdr/UPS08451374), Jan 4, 2008: ENGINE. POWER LOSS. INSPECTION TYPE:N/A IFSD - AT FL360 AT CRUISE NR 3 ENG ROLLED BACK, CHECK FUEL PANEL ENG HAD PRESS VIA X FEED. ENG STILL ROLLING BACK. PLACED IGN TO FLT START, 
- [SDR UPS07451218](https://openairdocs.org/sdr/UPS07451218), Nov 26, 2007: ELECTRONIC UNIT. SMOKE. FUEL FLOW ELECTRONICS UNIT SMOKING. REMOVED AND REPLACED FUEL FLOW ELECTRONICS UNIT PER MM 73-31-02. OPS CHECK NORMAL.
- [SDR EIA2007154](https://openairdocs.org/sdr/EIA2007154), Aug 29, 2007: ENGINE. OIL CONSUMPTION. PASSING THROUGH FL 200, NR 4 OIL QTY WENT TO "0", OIL TEMP REDLINED, OIL PRESSURE 5 PSI. ENGINE SHUT-DOWN AND RETURNED TO SUU STATION. AIRCRAFT FERRIED TO MZJ A
- [SDR KCSA07062](https://openairdocs.org/sdr/KCSA07062), Aug 8, 2007: ENGINE. MALFUNCTIONED. AT FL 360 AT 0230Z, SMOKE APPEARED IN THE COCKPIT. THREE SECONDS LATER THE NR 4 EGT WENT TO RED LINE, THE RED EGT LIGHT ILLUMINATED, THE OIL QUANTITY WENT TO ZE
- [SDR UPS07450346](https://openairdocs.org/sdr/UPS07450346), Jul 27, 2007: PANEL. DELAMINATED. RT WING LEADING EDGE, TOP FILLER PANELS OF NR 3 ENGINE 4 INCH X 10 INCH DELAMINATED. DISCOVERED ADDITIONAL DELAM OF INNER SKIN OPPOSITE EXTERIOR SOFT SPOT. REMO
- [SDR KCSA07041](https://openairdocs.org/sdr/KCSA07041), Apr 24, 2007: FILTER. CONTAMINATED. AT 8000', IDLE THRUST EGT NR 4 AT 874 DEGREES CELSIUS AND N2 AT 43 PERCENT. ALL OTHER INSTRUMENTS NORMAL. ACCOMPLISHED ENGINE STALL IN FLT (ABNORMAL EGT) CHECKL
- [SDR KCSA07011](https://openairdocs.org/sdr/KCSA07011), Feb 1, 2007: ENGINE. FLAMED OUT. FLT LEVEL 34.0 NR 4 ENG FLAMED OUT, DESCENDED TO F.L 280. RESTARTED ENG - ALL PARAMETERS NORMAL. ENG RESTARTED ON FIRST ATTEMPT. CLIMBED TO FL 340 ENG OPERATES 
- [SDR KCSA061525](https://openairdocs.org/sdr/KCSA061525), Nov 12, 2006: FRAME. WORN. NR 2 PYLON FWD OB FRAME WORN THROUGH FROM BOTTOM AT NAC STA 190.
- [SDR KCSA061526](https://openairdocs.org/sdr/KCSA061526), Nov 12, 2006: FRAME. CRACKED. MAIN DECK FRAME CRACKED AT B.S.1660, STR-12L.
- [SDR KCSA061521](https://openairdocs.org/sdr/KCSA061521), Nov 11, 2006: FRAME. CRACKED. FORWARD PIT FRAME HAS 8 INCH CRACK AT BS 880, STR-37L, WL127.
- [SDR KCSA061522](https://openairdocs.org/sdr/KCSA061522), Nov 11, 2006: FRAME. CRACKED. FORWARD PIT FRAME HAS 1INCH CRACK BS 840, STR-37R, WL125.
- [SDR KCSA061523](https://openairdocs.org/sdr/KCSA061523), Nov 11, 2006: FRAME. CRACKED. FORWARD PIT FRAME HAS 6 INCH CRACK AT BS 760, STR-37R, WL126.
- [SDR KCSA061524](https://openairdocs.org/sdr/KCSA061524), Nov 11, 2006: FRAME. CRACKED. 1 INCH CRACK IN NOSE W/W VERTICAL FRAME WEB AT B.S.300, WL174, LBL40.
- [SDR KCSA061520](https://openairdocs.org/sdr/KCSA061520), Nov 10, 2006: TENSION TIE. CRACKED. MAIN DECK TENSION TIE HAS .375 INCH CRACK ON AFT C-CHANNEL AT B.S.900, STR-9R.
- [SDR KCSA061493](https://openairdocs.org/sdr/KCSA061493), Nov 6, 2006: LIGHT. INOPERATIVE. UPPER DECK RT EMERGENCY EXIT SLIDE LIGHT INOPERATIVE.
- [SDR UPS06448611](https://openairdocs.org/sdr/UPS06448611), Oct 21, 2006: DOOR FRAME. CRACKED. INSPECTION TYPE-C M/D L1 DOOR LOWER HINGE CUTOUT FRAME FOUND CRACKED. CRACK LENGTH .3750 INCH, M/D L1 DOOR LOWER HINGE CUTOUT FRAME REPAIRED IAW SRM 52-10-02 FI
- [SDR UPS06448612](https://openairdocs.org/sdr/UPS06448612), Oct 21, 2006: VERTICAL BEAM. CRACKED. INSPECTION TYPE-C M/D NR 5R MED FWD LOWER INTERIOR CORNER FOUND VERTICAL BEAM PREVIOUSLY CRACKED. CRACK LENGTH 1.2500 INCH, M/D NR 5R MED FWD LOWER VERTICAL BEA
- [SDR UPS06448620](https://openairdocs.org/sdr/UPS06448620), Oct 21, 2006: WEB. CORRODED. INSPECTION TYPE-C M/D L5 DOOR LOWER HINGE LOWER WEB FOUND CORRODED. CORROSION BLEND OUT 0.063 INCH X 1INCH X 1.5 INCHES EXCEED SRM LIMIT. HINGE WEB REPLACED AND
- [SDR UPS06448621](https://openairdocs.org/sdr/UPS06448621), Oct 21, 2006: SKIN. CRACKED. INSPECTION TYPE-C M/D L3 UPPER HINGE EXT SKIN FOUND CRACKED. CRACK LENGTH .3750 INCH. M/D L3 DOOR UPPER HINGE EXT SKIN REPAIR IAW SRM 52-10-02 FIG 11 AND SB 747
- [SDR UPS06448623](https://openairdocs.org/sdr/UPS06448623), Oct 19, 2006: HOUSING. CHAFED. INSPECTION TYPE-C RT WING - O/B MID FLAP OB FORE FLAP TRACK FWD HOUSING FOUND DEEP CHAFED. RHW OB MID FLAP O/B FORE FLAP TRACK FWD HOUSING FTG ASSY REPLACED AND
- [SDR UPS06448622](https://openairdocs.org/sdr/UPS06448622), Oct 19, 2006: FLOORBEAM. CORRODED. INSPECTION TYPE-C M/D BS 2260 RBL 60 FLOORBEAM FOUND CORRODED. (CORROSION BLEND OUT 0.030 INCH X 2 INCH X 2 INCH EXCEED SRM LIMIT.) M/D BS 2260 LBL 8 INCH TO RB
- [SDR UPS06448610](https://openairdocs.org/sdr/UPS06448610), Oct 16, 2006: STRINGER. CRACKED. INSPECTION TYPE-C M/D BS1485 S6R STRINGER END FOUND CRACKED. (CRACK LENGTH 0.45 INCH INCH 0.75 INCH). M/D BS1485 STR 6R REPAIRED IAW RS R53-61-35650 CONTINUE IN
- [SDR KCSA061422](https://openairdocs.org/sdr/KCSA061422), Oct 14, 2006: SKIN. CORRODED. EXTERNAL FUSELAGE SKIN IS CORRODED AT STA 741 TO 762, STR. 19R.
- [SDR KCSA061420](https://openairdocs.org/sdr/KCSA061420), Oct 13, 2006: PANEL. DAMAGED. AFT BILGE FLOOR BOX BEAM UPPER PANEL IS DAMAGED IN SEVERAL AREAS AT STA. 1660 TO 1680, RBL 12 TO RBL 30.
- [SDR KCSA061421](https://openairdocs.org/sdr/KCSA061421), Oct 13, 2006: SHEAR TIE. CORRODED. FORWARD BILGE FUSELAGE FRAME SHEAR TIE IS CORRODED AT STA. 680, ABOVE STR. 44R.
- [SDR KCSA061416](https://openairdocs.org/sdr/KCSA061416), Oct 11, 2006: DOOR FRAME. CRACKED. R1 DOOR FRAME CRACKED (3 INCHES) AT FORWARD LOWER CORNER.
- [SDR KCSA061417](https://openairdocs.org/sdr/KCSA061417), Oct 11, 2006: FRAME. CRACKED. AFT BILGE FUSELAGE FRAME IS CRACKED AT FLOOR LEVEL STA. 1680, LBL 62.
- [SDR UPS06448613](https://openairdocs.org/sdr/UPS06448613), Oct 11, 2006: PLATE. DAMAGED. INSPECTION TYPE-C M/D BS 920 RT TENSION TIE ATTACH STEEL PLATE 8EA RIVET HOLES FOUND ELONGATED. M/D BS 920 RT TENSION TIE FWD CHANNEL ATTACHED STEEL PLATE REPLA
- [SDR UPS06448615](https://openairdocs.org/sdr/UPS06448615), Oct 11, 2006: SHEAR WEB. CRACKED. INSPECTION TYPE-C M/D BS820-840 STR10R STRINGER ATT SHEAR WEB FOUND CRACK. CRACK LENGTH .7500 AND .5 INCH. M/D BS820-840 STR10R AREA SHEAR WEB REPLACED AND INST
- [SDR UPS06448616](https://openairdocs.org/sdr/UPS06448616), Oct 11, 2006: SHEAR WEB. CRACKED. INSPECTION TYPE-C M/D BS820-840 STR10L STRINGER ATT SHEAR WEB FOUND CRACKED. CRACK LENGTH .7500 INCH AND .8750 INCH. M/D BS820-840 STR10L AREA SHEAR WEB REPLACE
- [SDR KCSA061414](https://openairdocs.org/sdr/KCSA061414), Oct 10, 2006: SEAT TRACK. CORRODED. SEAT TRACK HAS AREAS OF CORROSION FROM STA 480 TO 580 RBL 47.
- [SDR KCSA061415](https://openairdocs.org/sdr/KCSA061415), Oct 10, 2006: WEB. CRACKED. L4 DOOR INNER WEB CRACKED AT LIGHTENING HOLE AT TOP OF DOOR.
- [SDR UPS06448221](https://openairdocs.org/sdr/UPS06448221), Oct 10, 2006: BATTERY PACK. INOPERATIVE. DURING ARRIVAL SERVICE CK, FOUND A/C EMERGENCY LIGHTS INOP. REMOVED BATTERY PACK. REMOVED AND REPLACED MAIN ENTRY DOOR AFT LIGHT REF M/M CHAP 33-51-04 PG 205. O
- [SDR UPS06448614](https://openairdocs.org/sdr/UPS06448614), Oct 10, 2006: TENSION TIE. DAMAGED. INSPECTION TYPE-C M/D BS 920 LT TENSION TIE OB FWD CHANNEL 1EA RIVET HOLE FOUND ELONGATED. M/D BS920 LT TENSION TIE OB FWD CHANNEL ELONGATED HOLE OVERSIZED TO 0
- [SDR KCSA061403](https://openairdocs.org/sdr/KCSA061403), Oct 9, 2006: SEAT TRACK. CORRODED. SEAT TRACK AT STA 853 TO 870 AT RBL 11 IS CORRODED ON FLANGE.
- [SDR KCSA061405](https://openairdocs.org/sdr/KCSA061405), Oct 9, 2006: SKIN. DENTED. SMALL DENT ON BOTTOM SKIN ON LT HORIZONTAL STAB STA 257 APPROX 14 INCHES AFT OF AUX SPAR.
- [SDR KCSA061406](https://openairdocs.org/sdr/KCSA061406), Oct 9, 2006: STRINGER. CORRODED. BELLY STRINGER CORRODED STA 1900 TO 1920 RBL 28.
- [SDR KCSA061407](https://openairdocs.org/sdr/KCSA061407), Oct 9, 2006: WEB. CRACKED. NOSE WHEEL WELL WEB HAS CRACK UNDERNEATH HORIZONTAL SUPPORT STA 280 WL 170.
- [SDR KCSA061408](https://openairdocs.org/sdr/KCSA061408), Oct 9, 2006: WEB. CRACKED. NOSE WHEEL WELL WEB HAS CRACK UNDERNEATH HORIZONTAL SUPPORT STA 265 WL 150.
- [SDR KCSA061409](https://openairdocs.org/sdr/KCSA061409), Oct 9, 2006: WEB. CRACKED. NOSE WHEEL WELL HAS A CRACK ON WEB UNDERNEATH HORIZONTAL SUPPORT STA 280 WL 170.
- [SDR KCSA061410](https://openairdocs.org/sdr/KCSA061410), Oct 9, 2006: SKIN. CORRODED. CORROSION ON SKIN AT STA 2054 AFT OF BULK DOOR STR 32R TO STR 33R.
- [SDR UPS06447985](https://openairdocs.org/sdr/UPS06447985), Sep 13, 2006: ENGINE. SHUTDOWN. NR 3 ENG SHUT DOWN DUE TO AN OIL FILTER BYPASS LIGHT AND SPIKE IN OIL TEMP. AN EMERGENCY WAS DECLARED. REMOVED OIL FILTER DIFFERENTAIL PRESSURE SWITCH ON NR 3 E
- [SDR EIA2006222](https://openairdocs.org/sdr/EIA2006222), Sep 10, 2006: PRESSURE SWITCH. MALFUNCTIONED. DURING CRUISE NR 4 ENG OIL PRESS LIGHT CAME ON, NO OTHER SYSTEM MALFUNCTION NOTED, RAN CHECKLIST. LIGHT WENT OUT BUT LATER CAME ON INTERMITTENTLY, DIVERTED TO J

All 593: https://openairdocs.org/engine/pratt-whitney-jt9d-7a/reports.md

## STCs that may be installed (OpenAirDocs) (10)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE2338SO](https://openairdocs.org/stc/SE2338SO): Installation of an oil tank safety cap adapter which prevents oil loss in the event of loss or damage to the filler cap. Jet Avion Corporation
- [STC SE00024EN](https://openairdocs.org/stc/SE00024EN): Installation of oil tank filler neck check valve. Helicopter Support Inc Services Div
- [STC SE01543CH](https://openairdocs.org/stc/SE01543CH): Replace Hamilton Sundstrand P/N 778839-13, 778839-14, 778839-19, 778839-20, 778839-37, 778839-38, 816682-1, 840618-2, 880724 carbon bushings with Cook Airtomic P/N AIR22947 Slotted Entry Busing in the High Pressure Shutoff Valve. Cook Airtomic
- [STC SE00402NY](https://openairdocs.org/stc/SE00402NY): Installation of corrosion resistant steel replacement Chip Detectors. Vickers Inc. Lists JT9D Series
- [STC SE497NE](https://openairdocs.org/stc/SE497NE): Installation of oil tank filler neck check valve assembly. Aviation Components Support
- [STC SE2888SO-D](https://openairdocs.org/stc/SE2888SO-D): Modify turbine exhaust case to incorporate Model -20 mount features. Aero Component Technologies
- [STC SE593NE](https://openairdocs.org/stc/SE593NE): Installation of a Select Controls Inc. Engine Oil Shuttle Valve, P/N 2057-1-001. (See Eligibility List). Basken Valve Corporation. Lists JT9D Series
- [STC SE435NE](https://openairdocs.org/stc/SE435NE): Installation of an oil tank filler opening shuttle valve. Stockbridge William D
- [STC SA2227SO](https://openairdocs.org/stc/SA2227SO): Installation of wiring and associated components for utilization of the Rolls Royce, Inc., ARINC, interface/readers UT1317 or UT1317/1, for the purpose of acquisition, recording, and analysis in real time of engine/aircraft/ systems. (767 SERIES POWERED BY RR RB-11-524 SERIES. Rolls Royce, Inc. Lists JT9D Series
- [STC SE1141CE](https://openairdocs.org/stc/SE1141CE): Removal of 15th stage bleeds and surge detector system. Trans World Airlines Inc

## PMA parts (OpenAirDocs) (over 1,000, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [WF335297](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132393134320250602133021.0001): Filter Element, Oil. Donaldson Company Inc · PMA PQ2432CE · Replaces 815189, Alternate: AD-B863F-65Y4 · May 23, 2025
- [739951KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153223182920251125233836.0001): Nut Option. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 739951 · Feb 20, 2024
- [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149540485520240306163131.0001): Bleed Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 728244 · Apr 7, 2023
- [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120575539320231218190434.0001): Bleed Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 728244 · Apr 7, 2023
- [787V500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199627737420230914183247.0001): Air Cooling Shutoff Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 770051 Rev. B (10-26-77) · Mar 29, 2023
- [684V800](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188649902420230914183251.0001): Thermostat Flow Control. Honeywell International Inc. · PMA PQ1222NM · Replaces 756796 Rev. B (8-22-90) · Mar 29, 2023
- [426V600](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183757188420230914183253.0001): Solenoid Bleed Override Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 655005 Rev. C (8-23-90) · Mar 29, 2023
- [666V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181891677520230914183252.0001): Fuel Check Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 706354 Rev. C (8-6-90) · Mar 29, 2023
- [449V450-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180455150620230914183250.0001): Linear Directional Control Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 729728 · Mar 29, 2023
- [684V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164424510920230914183254.0001): Rotor & Stator Assy.. Honeywell International Inc. · PMA PQ1222NM · Replaces 711742 Rev G. (4-2-76) · Mar 29, 2023
- [696V300](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158650076720230914183255.0001): Fuel Control Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 715672 Rev. C (8-22-90) · Mar 29, 2023
- [787V900](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129148698520230914183249.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 777835 Rev. A (8/90) · Mar 29, 2023
- [787V1100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126878908320230914183250.0001): Turbine Case Cooling Air Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 779290 Rev. C (9-14-90) · Mar 29, 2023
- [DEC06- 003-501](https://drs.faa.gov/browse/excelExternalWindow/E2F24218F1DE901086258629005AC423.0001): Seal, Shaft, Stationary. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 218304 · Nov 16, 2020
- [753224WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID615615407820210611172456.0001): C-Ring, Internal Pressure. Wencor LLC · PMA PQ1370NM · Replaces 753224 & 786426 · Oct 15, 2020
- [733726WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID213268376120210611172313.0001): Pin, Shoulder Headless, 0.156 X 0.100 X 0.300 X 6.720. Wencor LLC · PMA PQ1370NM · Replaces 733726 · Oct 15, 2020
- [715118WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129247679920210611172135.0001): Pin, Straight Headed, .1705 X .305, Slab. Wencor LLC · PMA PQ1370NM · Replaces 715118 · Oct 15, 2020
- [44ASP290A](https://drs.faa.gov/browse/excelExternalWindow/7FB2193B6C55D03A862585D20064276A.0001): Switch Assembly. AeroSpares MCO · PMA PQ04350CE · Replaces 815386 801941 788012 795111 · Jul 23, 2020
- [44ASP290](https://drs.faa.gov/browse/excelExternalWindow/0A4B0D1F038BAFFE862585D200642719.0001): Switch Assembly. AeroSpares MCO · PMA PQ04350CE · Replaces 801941 788012 795111 · Jul 23, 2020
- [K39268-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197377551820240703183024.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 711436 · Apr 1, 2020
- [K29109-5-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193294423120240703182956.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638834 · Apr 1, 2020
- [MF39839-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188406426920240703183032.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 743080 · Apr 1, 2020
- [H19942-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187988695520240703182923.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 490276 · Apr 1, 2020
- [K49502-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185716762720240703182917.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 4021907 · Apr 1, 2020
- [H29118-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182787335020240703182936.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618097 · Apr 1, 2020
- [H29220-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181748590020240703182959.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639299 · Apr 1, 2020
- [F49342-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174539824620240703183024.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 711481 · Apr 1, 2020
- [H22-5PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169651563520240703182915.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 395037 · Apr 1, 2020
- [H19943-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168561015520240703182921.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 488594 · Apr 1, 2020
- [MK1031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167837965920240703183021.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707842 · Apr 1, 2020
- [H29220-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167487504120240703183000.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639335 · Apr 1, 2020
- [K29109-4-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167318037720240703182950.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638671 · Apr 1, 2020
- [MK1031-4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165731695120240703183037.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 750691 · Apr 1, 2020
- [CN29116-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162949938820240703182945.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 627798 · Apr 1, 2020
- [CN39971-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160483571020240703183014.0001): Nut, gangchannel,S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 677824 · Apr 1, 2020
- [F50030-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157628639820240703183034.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 744238 · Apr 1, 2020
- [K29109-4-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157523208720240703182953.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638674 · Apr 1, 2020
- [H29967-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156944476120240703183005.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 647796 · Apr 1, 2020
- [H29117-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154403298820240703182952.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638672 · Apr 1, 2020
- [H19943-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152390320020240703182922.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 490274 · Apr 1, 2020
- [H29112-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152072494720240703182937.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618103 · Apr 1, 2020
- [H29908-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151436919820240703182947.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 627799 · Apr 1, 2020
- [F29968-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148442604620240703183006.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 649373 · Apr 1, 2020
- [K29843-4-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147699109120240703183003.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 646391 · Apr 1, 2020
- [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145706197720240703182942.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020
- [K29110-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140281191220240703182940.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618106 · Apr 1, 2020
- [MK49975-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135829873420240703183030.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 740742 · Apr 1, 2020
- [K39085-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130771087820240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 650410 · Apr 1, 2020
- [CN50039-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127806516220240703182914.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 2173479 · Apr 1, 2020
- [MK50476-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125003045020240703183001.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 641834 · Apr 1, 2020

All of them: https://openairdocs.org/engine/pratt-whitney-jt9d-7a/pma.md

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