# Pratt & Whitney JT9D-7R4G2

- Type: Engine model (FAA registry)
- Registry code: 51557
- Manufacturer (registry): P & W
- Model: JT9D-7R4G2
- Engine type: Turbo-fan
- Power: 54,750 lb thrust
- Data sheet: [TCDS E3NE](https://openairdocs.org/tcds/E3NE) (OpenAirDocs)
- Holder: Pratt & Whitney
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/pratt-whitney-jt9d-7r4g2

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 2012-06-14](https://openairdocs.org/ad/2012-06-14): HPT 1st stage air seals · Pratt & Whitney Division JT9D-7R4G2 and JT9D-7R4H1. Effective Apr 27, 2012
- [AD 2009-10-01](https://openairdocs.org/ad/2009-10-01): High-pressure turbine (HPT) vane assemblies · Pratt & Whitney Division JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2 and 1 more. Effective May 18, 2009
- [AD 2007-18-06](https://openairdocs.org/ad/2007-18-06): Inspection of the blade root thickness · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Oct 5, 2007
- [AD 2004-01-08](https://openairdocs.org/ad/2004-01-08): One-piece fan case shield · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Feb 10, 2004
- [AD 2002-07-04](https://openairdocs.org/ad/2002-07-04): Low Pressure Turbine (LPT) 5th Stage Disks · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective May 14, 2002
- [AD 2001-17-30](https://openairdocs.org/ad/2001-17-30): High Pressure Turbine 1st Stage Disk Aft Lugs · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Oct 4, 2001
- [AD 98-21-22 R1](https://openairdocs.org/ad/98-21-22-R1): High Pressure Compressor Disks · Pratt & Whitney Division JT9D-59A, JT9D-70A, JT9D-7Q and 8 more. Effective Jan 18, 2000
- [AD 99-20-04](https://openairdocs.org/ad/99-20-04): High Pressure Turbine Disks · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Oct 29, 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 96-17-11](https://openairdocs.org/ad/96-17-11): Low pressure turbine (LPT) vane · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Nov 18, 1996
- [AD 94-08-06](https://openairdocs.org/ad/94-08-06): Fan Blade · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Jul 5, 1994
- [AD 91-03-03](https://openairdocs.org/ad/91-03-03): High Pressure Compressor Turbine Driveshaft · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Feb 22, 1991
- [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 87-23-05 R1](https://openairdocs.org/ad/87-23-05-R1): Fan Case Assembly · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Mar 23, 1990
- [AD 86-07-12](https://openairdocs.org/ad/86-07-12): Engine Support Clevis · Pratt & Whitney Division JT9D-7R4G2. Effective Apr 11, 1986
- [AD 83-22-52 R1](https://openairdocs.org/ad/83-22-52-R1): Refurbishing Fuel Nozzles · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Feb 21, 1984
- [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 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

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 2007-17-21](https://openairdocs.org/ad/2007-17-21) (historical): High pressure turbine (HPT) vane assemblies · Pratt & Whitney Division JT9D-7R4E1, JT9D-7R4E4, JT9D-7R4G2 and 1 more. Effective Sep 28, 2007
- [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 2005-26-09](https://openairdocs.org/ad/2005-26-09) (historical): 1st stage fan blades. · Pratt & Whitney Division JT9D-7R4D, JT9D-7R4D1, JT9D-7R4E and 4 more. Effective Jan 11, 2006
- [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

## Registered aircraft

None registered with this engine model now.

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (129, newest 50)

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

- [SDR KCSA2014101810](https://openairdocs.org/sdr/KCSA2014101810), Oct 18, 2014: ENGINE. MALFUNCTIONED. AFTER TAKEOFF, NR 4 ENGINE EGT AT REDUCED THRUST OF 1.40, CLIMBED INTO YELLOW FOR APPROXIMATE 2 SECONDS, THEN CLIMBS THRUST SET, REMAINED NORMAL AFTER TAKEOFF. 
- [SDR KCSA2014101409](https://openairdocs.org/sdr/KCSA2014101409), Oct 14, 2014: PRESSURE SWITCH. DEFECTIVE. NR 1 START VALVE OPEN LIGHT ILLUMINATED IN FLIGHT. ENGINE SHUTDOWN. ENGINE CONDITION STABLE PRIOR TO SHUTDOWN. AFTER SHUTDOWN NORMAL WITH N1 AT 31.5 N2 AT 26.9 
- [SDR KCSA2014100708](https://openairdocs.org/sdr/KCSA2014100708), Oct 7, 2014: SEAL. LEAKING. NR 2 ENGINE SHUTDOWN IN FLIGHT DUE TO LOSS OF OIL QUANTITY. COMPLIED WITH NR 2 ENGINE WINDMILLING INSPECTION IAW MM 72-00-00 CONFIGURE 3, PAGE 690.18 STEP (2) A
- [SDR KCSA2014051502](https://openairdocs.org/sdr/KCSA2014051502), May 15, 2014: LINE. CRACKED. OBSERVED FUEL LEAKING NR 1 ENGINE. IN FLIGHT SHUTDOWN ENGINE IAW FOB 10-07. NO PARAMETERS EXCEEDED. INSPECTED NR 1 ENGINE IAW AMM 71-00-00. FOUND FUEL LINE TO F
- [SDR KCSA20120625007](https://openairdocs.org/sdr/KCSA20120625007), Jun 25, 2012: FCU. MALFUNCTIONED. NR 2 ENGINE SHUTDOWN DUE EGT EXCESSIVE AND PARAMETERS UNCONTROLLABLE IN CLIMB. WINDMILL PROCEDURES COMPLIED WITH. PERFORMED EVBC TRIM IAW B747 AMM 71-00-00 TEST
- [SDR TX9Y20110928006](https://openairdocs.org/sdr/TX9Y20110928006), Sep 27, 2011: VALVE. MALFUNCTIONED. AIRCRAFT DEPARTED AIRPORT TO PERFORM A FUNCTIONAL TEST FLT, AFTER HEAVY CHECK. ON CLIMBOUT, ACFT DEVELOPED PROBLEMS WITH THE NR 1 ENGINE NACELLE OVERHEAT RUNNIN
- [SDR KCSA11053](https://openairdocs.org/sdr/KCSA11053), Sep 16, 2011: ENGINE. SURGES. NR 4 ENGINE SURGED DURING CONSTANT POWER. ENGINE WAS SHUT DOWN. ENGINE WAS SURGING AT CLIMB THRUST PRIOR TO SHUTDOWN. ENGINE WIND MILLED FOR 40 MINUTES. EGT EXC
- [SDR 2011F00159](https://openairdocs.org/sdr/2011F00159), Jul 7, 2011: MOUNT. CRACKED. CRACKS FOUND ON NR 2 PYLON REAR ENGINE MOUNT UPPER BULKHEAD INBD AND OTBD FRAME HORIZ FLANGE. EACH CRACK APPROX 0.500" IN LENGTH. FINDING DISCOVERED DURING 'C1 
- [SDR 2011F00161](https://openairdocs.org/sdr/2011F00161), Jul 7, 2011: SKIN. CRACKED. PYLON NR 3 UPPER SKIN EDGE AND FASTENER HOLES FOUND WITH CRACK DURING EDDY CURRENT CHECK. FINDING DISCOVERED DURING 'C1+C2' CHECK FROM 08 JUN 2011 TO 22 JULY 20
- [SDR Q2SA2011F00081](https://openairdocs.org/sdr/Q2SA2011F00081), May 11, 2011: VALVE. MALFUNCTIONED. WITH NR 4 CROSS FEED VALVE INDICATING "OPEN", NR 4 TANK (QTY) WENT DOWN AS IF CROSSFEED VALVE WAS CLOSED. NR 4 TANK BOOST PUMP LOW PRESSURE LIGHTS DID NOT FLASH
- [SDR Q2SA749007](https://openairdocs.org/sdr/Q2SA749007), Oct 10, 2009: CONTROL BOX. WORN. IN FLIGHT FROM PANC TO RKSI, CREW HAD NO FORWARD THROTTLE MOVEMENT RESPONSE ON ENGINE NR 3, THE ENGINE RESPONDED NORMALLY DURING RETARDING THROTTLE MOVEMENT. CR
- [SDR Q2SA749005](https://openairdocs.org/sdr/Q2SA749005), Aug 26, 2009: ENGINE. POWER LOSS. AT CRUISE LEVEL, NR 4 ENGINE FAILED AT 1945Z THREE HOURS AFTER TAKING OFF FROM RKSI. POP SOUND CAME FROM ENGINE, N1 AND N2 WENT LOW, EGT ROSE TO 615 AND CLIMBIN
- [SDR Q2SA749004](https://openairdocs.org/sdr/Q2SA749004), Feb 20, 2009: ENGINE. FIRE. AFTER NORMAL LANDING WHEN BRINGING ENGINES OUT OF REVERSE, TOWER REPORTED TO CREW THAT FIRE WAS COMING FROM NR 4 ENGINE. CREW REPORTED NO FIRE WARNING INDICATIO
- [SDR Q2SA749003](https://openairdocs.org/sdr/Q2SA749003), Dec 29, 2008: SKIN PANEL. DEPARTED. DURING FLIGHT, FUSELAGE SKIN PANEL SECTION BROKEN OFF (APPROXIMATELY 10 INCH BY 20 INCH BETWEEN STA 2690.85 AND 2701.5 AT WL 310). VEERED AFTER LANDING DURING M
- [SDR Q2S2008F00004](https://openairdocs.org/sdr/Q2S2008F00004), Jul 11, 2008: ENGINE. FAILED. AFTER TAKEOFF AND CLIMBING THROUGH FLIGHT LEVEL 220, NR 2 ENGINE COMPRESSOR STALLED VIOLENTLY, EGT 940 DEGREES C. REDUCED THRUST AND NR 2 STABILIZER THEN STALLE
- [SDR Q2S2008F00001](https://openairdocs.org/sdr/Q2S2008F00001), Jun 21, 2008: COMPRESSOR. STALLED. WHILE THROTTLING ENGINE TO TAKEOFF POWER, ENGINE NR 1 HAD MULTIPLE COMPRESSOR STALLS. TAKEOFF POWER WAS 1.53, COMPRESSOR STALLS STARTED WHEN POWER WAS APPROACHI
- [SDR Q2SA708001](https://openairdocs.org/sdr/Q2SA708001), Apr 7, 2008: FUEL CONTROL. MALFUNCTIONED. ATB AT ANC DUE TO ENGINE PROBLEM. NR 4 ENGINE STALLED DURING CLIMB AT 33,600 FT. REDUCED THRUST TO IDLE. IDLE PARAMETERS N1 37 PERCENT, N2 61 PERCENT, EPR ERRAT
- [SDR C36002](https://openairdocs.org/sdr/C36002), Jul 14, 2007: DUCT. CRACKED. AFTER TAKEOFF, ENGINE NR 3 FIRE INDICATION AT 400 FEET. FOUND T/R PNEUMATIC FEED DUCT SEPARATED AT 3-WAY VLV MOUNTING FLANGE. HIGH STAGE AIR CAUSED MELTING OF E
- [SDR KCSA071162](https://openairdocs.org/sdr/KCSA071162), Apr 21, 2007: LIGHT. INOPERATIVE. EMERGENCY EXIT SIGN ABOVE RT UPPER DECK ESCAPE DOOR IS INOP.
- [SDR C36001](https://openairdocs.org/sdr/C36001), Mar 31, 2007: UNKNOWN. UNKNOWN. 2 HOURS AFTER TAKEOFF ELECTRICAL ODOR IN COCKPIT. OBSERVED MAIN BATTERY VOLTAGE DROPPING THROUGH 22 VOLTS. WITHIN 10 MINUTES VOLTAGE HAD DROPPED TO 13 VOLTS AND
- [SDR KCSA071062](https://openairdocs.org/sdr/KCSA071062), Feb 6, 2007: SEAT TRACK. WORN. F/E'S OUTBOARD SEAT TRACK WORN BEYOND LIMITS
- [SDR KCSA071060](https://openairdocs.org/sdr/KCSA071060), Feb 2, 2007: VERTICAL SUPPORT. CORRODED. AFT BILGE FLOORBEAM VERTICAL SUPPORT IS CORRODED AT STA 1920, LBL 63.
- [SDR KCSA071059](https://openairdocs.org/sdr/KCSA071059), Feb 1, 2007: STRINGER. CRACKED. FUSELAGE STRINGER CRACKED AT B.S.1480, STR-8L.
- [SDR GUUA01250701](https://openairdocs.org/sdr/GUUA01250701), Jan 25, 2007: CONNECTOR. LOOSE. (9262) FPO/PBI DURING FLIGHT RT FIRE DISCHARGE ANNUNCIATOR ILLUMINATED. SECURED RT FIRE BOTTLE WIRE CONNECTION OPERATIONAL CHECK NORMAL.
- [SDR KCSA071017](https://openairdocs.org/sdr/KCSA071017), Jan 16, 2007: LATCH. BROKEN. UPPER DECK EMERGENCY DOOR FORWARD LOWER GUIDE RAIL LATCH/SPRING ASSY. IS BROKEN ON BOTTOM OF DOOR.
- [SDR KCSA071018](https://openairdocs.org/sdr/KCSA071018), Jan 16, 2007: FITTING. CORRODED. BS 2360 STR 42L END FITTINGS ARE CORRODED ON FORWARD AND AFT SIDES
- [SDR KCSA071019](https://openairdocs.org/sdr/KCSA071019), Jan 16, 2007: FITTING. CORRODED. B.S. 2360 PRESSURE BULKHEAD STR 48R END FITTINGS ARE CORRODED ON FORWARD AND AFT SIDES.
- [SDR KCSA071020](https://openairdocs.org/sdr/KCSA071020), Jan 16, 2007: FITTING. CORRODED. BS 2360 PRESSURE BULKHEAD S50R END FITTINGS ARE CORRODED ON FORWARD AND AFT SIDES.
- [SDR KCSA071021](https://openairdocs.org/sdr/KCSA071021), Jan 16, 2007: FITTING. CORRODED. B.S. 2360 PRESSURE BULKHEAD STR 38L END FITTING IS CORRODED ON FORWARD SIDE.
- [SDR KCSA071022](https://openairdocs.org/sdr/KCSA071022), Jan 16, 2007: STRINGER. CRACKED. FUSELAGE STRINGER 38R HAS A .25 CRACK BETWEEN STA. 500 AND 520.
- [SDR KCSA071011](https://openairdocs.org/sdr/KCSA071011), Jan 15, 2007: STRINGER. CRACKED. STRINGER 39L HAS .25 INCH CRACK BETWEEN STA580 AND 600.
- [SDR KCSA071012](https://openairdocs.org/sdr/KCSA071012), Jan 15, 2007: STIFFENER. CRACKED. STA 740 LBL24 HAS CRACKED STIFFENER .5 INCH.
- [SDR KCSA071013](https://openairdocs.org/sdr/KCSA071013), Jan 15, 2007: SKIN. DENTED. STA 580 BETWEEN STR 41R AND 42R SKIN DENTED 1.5 INCHES.
- [SDR KCSA071014](https://openairdocs.org/sdr/KCSA071014), Jan 15, 2007: SEAT TRACK. CORRODED. SEAT TRACK CORRODED AT STA 600 BL-0 WL312.
- [SDR KCSA071015](https://openairdocs.org/sdr/KCSA071015), Jan 15, 2007: FRAME. CRACKED. FRAME WEB CRACKED 1 INCH STA1680 STR40R WL118.
- [SDR KCSA071016](https://openairdocs.org/sdr/KCSA071016), Jan 15, 2007: FRAME. DENTED. FRAME WEB DENTED APROX .75 INCH STA 1760 4 INCH, WL114, RBL53.
- [SDR KCSA071006](https://openairdocs.org/sdr/KCSA071006), Jan 10, 2007: SHEAR WEB. CRACKED. FUSELAGE LT SLOPING SHEAR WEB IS CRACKED (1 INCH) AT STA. 820, LBL 77, STR. 9L.
- [SDR KCSA071007](https://openairdocs.org/sdr/KCSA071007), Jan 10, 2007: ATTACH BRACKET. BROKEN. FUSELAGE LT TENSION TIE ATTACH BRACKET IS BROKEN AT STA. 900, LBL 38.5.
- [SDR KCSA071008](https://openairdocs.org/sdr/KCSA071008), Jan 10, 2007: ATTACH BRACKET. BROKEN. FUSELAGE RT TENSION TIE ATTACH BRACKET IS BROKEN AT STA. 900, RBL 38.5.
- [SDR KCSA071009](https://openairdocs.org/sdr/KCSA071009), Jan 10, 2007: STRINGER CLIP. GOUGED. FUSELAGE STRINGER CLIP IS GOUGED AT STA. 820, RT SIDE STR 10A.
- [SDR KCSA071010](https://openairdocs.org/sdr/KCSA071010), Jan 10, 2007: TENSION TIE. CRACKED. FUSELAGE TENSION TIE FORWARD CHANNEL IS CRACKED (1 INCH) AT UPPER FLANGE STA. 920, LBL 15.
- [SDR A25005](https://openairdocs.org/sdr/A25005), Dec 3, 2006: SLIDE. UNWANTED DEPLOY. RT UPPER DECK ESCAPE SLIDE ACCIDENTALLY DEPLOYED DURING OPERATION OF THE DOOR.
- [SDR EOA53002](https://openairdocs.org/sdr/EOA53002), Oct 14, 2006: SKIN. DENTED. DURING GROUND OPERATIONS A VEHICLE STRUCK THE AIRPLANE AT APPROXIMATELY BS 1985 AND DAMAGED THE SKIN, FRAME AND STRINGERS BETWEEN S-44R AND S-51L. THE IMPACT CA
- [SDR 0600446638](https://openairdocs.org/sdr/0600446638), Feb 25, 2006: ENGINE. MALFUNCTIONED. DURING CLIMB, THE CREW OBSERVED FLUCTUATION IN THE OIL QUANTITY INDICATION ON THE NR 2 ENGINE. THIS WAS FOLLOWED BY SMOKE APPEARING IN THE COCKPIT AND CABIN. TH
- [SDR 05009](https://openairdocs.org/sdr/05009), Jan 30, 2005: GARLOCK SEAL. FAILED. PRECAUTIONARY ENG SHUTDOWN ON NR 1 ENG DUE TO LOW OIL QTY. REMOVED AND REPLACED CONSTANT SPEED DRIVE GARLOCK SEAL IAW MM 72-61-07. REMOVED AND REPLACED TRANSFER
- [SDR 0401296638](https://openairdocs.org/sdr/0401296638), Jul 20, 2004: WEB. CRACKED. DURING (H) CHECK FOUND CRACK IN NR 3 PLYON ENGINE MOUNT BULKHEAD WEB. REPAIRED IAW EA 66-165162.
- [SDR 04016](https://openairdocs.org/sdr/04016), Apr 11, 2004: WARNING LIGHT. ILLUMINATED. AFTER TAKEOFF AT 500 FT AGL, THE NR 4 ENGINE FIRE INDICATION ILLUMINATED AND THE FIRE BELL SOUNDED. PERFORMED APPROPRIATE CHECKLIST AND LANDED WITHOUT INCIDENT.
- [SDR 0400076632](https://openairdocs.org/sdr/0400076632), Jan 6, 2004: PUMP. MALFUNCTIONED. AT FL380, THE CREW OBSERVED DECREASING PARAMETERS ON THE NR 4 ENGINE. THE COM PROCEDURES WERE FOLLOWED BUT THE ENGINE REMAINED AT IDLE. ALL INDICATIONS REMAINED
- [SDR S03272099](https://openairdocs.org/sdr/S03272099), Dec 19, 2003: ENGINE. DAMAGED. ENGINE 1 ALL PARAMETERS VIBRATED WITH T/L FORWARDED AND RETARDED. VIB RAISED UP TO 3.0 UNIT AT IDLE POWER. ATB TO SIN AND GROUND INSPECTION FOUND MASSIVE METAL 
- [SDR 0302156745](https://openairdocs.org/sdr/0302156745), Dec 10, 2003: CONNECTOR. SHORTED. DURING NR 1 ENGINE START, THE GROUND CREW REPORTED A FIRE IN THE NR 1 ENGINE. THE FLIGHT CREW DISCHARGED BOTH FIRE BOTTLES AND THE GROUND CREW USED GROUND FIRE 

All 129: https://openairdocs.org/engine/pratt-whitney-jt9d-7r4g2/reports.md

## STCs that may be installed (OpenAirDocs) (1)

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 SE00054AT-D](https://openairdocs.org/stc/SE00054AT-D): Modification of the turbine exhaust case to provide increased wall thickness for the purpose of improved blade containment. Aero Component Technologies

## 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
- [AA134S-1KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184879292020230503123547.0001): Igniter Plug. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces AA134S-1 · Apr 27, 2023
- [623V100-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149540485520240306163131.0001): Bleed Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 728244 · Apr 7, 2023
- [941V0500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142722605820240306163131.0001): Air Shut Off Valve. Goodrich Corporation · PMA PQ1352NM · Replaces 796641 · 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
- [941V0500](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109278233520231218190433.0001): Air Shut Off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 796641 · Apr 7, 2023
- [1011V0400](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115703959220230914150543.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 792396 · Apr 5, 2023
- [1011V0400-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111683462420230914150542.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 806273 Rev. Original (11-9-90) · Apr 5, 2023
- [1011V0400-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108147711720230914150544.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 792396 · Apr 5, 2023
- [1011V0200-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194862638220230914183239.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 788775 Rev. B (10-13-82) · Mar 29, 2023
- [1065V0100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190296047120230914183235.0001): Return Fuel Heater Bypass Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 799126 Rev. A (3/10/82) · 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
- [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
- [1011V0400-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164641560420230914183241.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 801443 Rev. A (8-17-90) · Mar 29, 2023
- [941V100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162411062720230914183248.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 773627 Rev. C (4-12-84) · Mar 29, 2023
- [941V200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138315515420230914183245.0001): Air Shut-off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 5001987-01 Rev. D (8/20/90) · Mar 29, 2023
- [941V0400](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132846383120230914183235.0001): Air Shut Off Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 793596 · Mar 29, 2023
- [1011V0200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113104036020230914183238.0001): Turbine Case Valve. Honeywell International Inc. · PMA PQ1222NM · Replaces 788775 Rev. B (10-13-82) · Mar 29, 2023
- [ST1946-163SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157259267720220608164142.0001): Packing-Preformed. Seal Dynamics Inc · PMA PQ1715CE · Replaces ST1946-163 · Apr 28, 2022
- [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
- [DEC01- 056-527](https://drs.faa.gov/browse/excelExternalWindow/54EE811A2D8363BE86258629005AC230.0001): Gasket - .093 Free Height. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces ST1111-27 ST1121-27 ST1141-27 · Nov 16, 2020
- [M5001518-01](https://drs.faa.gov/browse/excelExternalWindow/E63F78CEE74AAE3086258601005A4B50.0001): Shoulder Pin. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 5001518-01 · Oct 7, 2020
- [M770354](https://drs.faa.gov/browse/excelExternalWindow/5BFC3294592D814B862585E4003A0124.0001): Spacer-#1&2 Bearing. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 770354 · Sep 9, 2020
- [M5005438-01](https://drs.faa.gov/browse/excelExternalWindow/9BE41C959A160DC2862585E4003A1D51.0001): Stop- Instrumentation Plug. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces Pratt & Whitney P/N 5005438-01 · Sep 8, 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
- [K29109-5-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199222314220240703182956.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 638834 · Apr 1, 2020
- [MK50476-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196841897320240703183001.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 641834 · Apr 1, 2020
- [H29117-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194053167920240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 662141 · Apr 1, 2020
- [K39255-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193201026820240703183043.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 753970 · Apr 1, 2020
- [H29118-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192129229120240703182937.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 618097 · Apr 1, 2020
- [H50361-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189842981620240703183046.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 760552 · Apr 1, 2020
- [K1000X4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188589440020240703183043.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 753965 · Apr 1, 2020
- [K52341-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186716157020240703183050.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 798643 · Apr 1, 2020
- [F39244-3BC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183518510320240703183036.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 746922 · Apr 1, 2020
- [K3031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182584152620240703183020.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707838 · Apr 1, 2020
- [H29220-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181296887920240703182959.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 639299 · Apr 1, 2020
- [H29011-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179081188420240703183101.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces ST2117-12 · Apr 1, 2020
- [H29605-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178996417420240703183009.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 649734 · Apr 1, 2020
- [K39369-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178897652920240703183039.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 751935 · Apr 1, 2020
- [F5031-3BCPW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174223066620240703183026.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 714847 · Apr 1, 2020
- [F50030-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174206753420240703183035.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 744380 · Apr 1, 2020
- [CN39971-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173827076120240703183014.0001): Nut, gangchannel,S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 677824 · Apr 1, 2020
- [K29109-4-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171047886120240703182951.0001): 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/DRSDOCID169137431020240703183037.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 750691 · Apr 1, 2020
- [MF29748-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168182111020240703182934.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 596295 · Apr 1, 2020
- [K39085-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165068875520240703183012.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 650410 · Apr 1, 2020
- [CN52502-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162355773120240703183050.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 800826 · Apr 1, 2020
- [MK1000X4PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154056867920240703182919.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 410191 · Apr 1, 2020
- [MK1031-3PW](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152243115020240703183022.0001): Nut, S-L. Arconic Global Fasteners & Rings, Inc., dba Arconic Fastening Systems · PMA PQ1351NM · Replaces 707842 · Apr 1, 2020

All of them: https://openairdocs.org/engine/pratt-whitney-jt9d-7r4g2/pma.md

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