# Pratt & Whitney JT3D-3 - Type: Engine model (FAA registry) - Registry code: 51685 - Manufacturer (registry): P & W - Model: JT3D-3 - Engine type: Turbo-fan - Power: 18,000 lb thrust - Data sheet: [TCDS 1E8](https://openairdocs.org/tcds/1E8) (OpenAirDocs) - Holder: Pratt & Whitney Division - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-jt3d-3 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 99-01-08](https://openairdocs.org/ad/99-01-08): Stage 7 through Stage 15 High-Pressure Compressor (HPC) Disks · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 30 more. Effective Jan 5, 1999 - [AD 96-23-10](https://openairdocs.org/ad/96-23-10): Steel High Pressure Compressor (HPC) disk · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 8 more. Effective Jan 21, 1997 - [AD 82-14-02](https://openairdocs.org/ad/82-14-02): Third Stage Turbine Disks · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Jul 1, 1982 - [AD 80-12-51 R2](https://openairdocs.org/ad/80-12-51-R2): First Stage Fan Blade · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Jul 1, 1980 - [AD 78-11-03](https://openairdocs.org/ad/78-11-03): First Stage Fan Blades · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Aug 10, 1978 - [AD 75-04-07](https://openairdocs.org/ad/75-04-07): Tenth Stage Compressor Disk · Pratt & Whitney Division JT3D-3, JT3D-3B and JT3D-7. Effective Feb 19, 1975 - [AD 74-15-05](https://openairdocs.org/ad/74-15-05): Compressor Discs · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 9 more. Effective Jul 25, 1974 - [AD 73-15-02](https://openairdocs.org/ad/73-15-02): Turbine Case Lug · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 2 more. Effective Sep 14, 1973 - [AD 67-28-05](https://openairdocs.org/ad/67-28-05): First Stage Fan Hub · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 2 more. Effective Oct 24, 1967 - [AD 64-05-05](https://openairdocs.org/ad/64-05-05): Throttle Valve Assemblies · Pratt & Whitney Division JT3C-12, JT3C-7, JT3D-1 and 17 more. Effective Feb 27, 1964 - [AD 62-14-05](https://openairdocs.org/ad/62-14-05): Turbine Rotor Blades · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 1 more. Effective Jul 16, 1962 - [AD 73-07-08](https://openairdocs.org/ad/73-07-08): Fuel Control To Fuel Return Line Elbow and Jam Nut · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 2 more - [AD 69-01-04](https://openairdocs.org/ad/69-01-04): Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 3 more - [AD 61-26-04](https://openairdocs.org/ad/61-26-04): Fuel Pressurizing and Dump Valve Seals · Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7 and 1 more - [AD 56-06-02](https://openairdocs.org/ad/56-06-02): Cylinder Flange Attaching Stud · Pratt & Whitney Division Double Wasp CA15, Double Wasp CA17, Double Wasp CA18 and 115 more ## 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 (55, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR U2RA485FLP5226](https://openairdocs.org/sdr/U2RA485FLP5226), Dec 14, 2010: INU. INOPERATIVE. NR1, IMMEDIATELY AFTER ROTATION, NR 1 INU FAILED, CAPT INSTRUMENTS FLAGGED FAIL. NR 2, IMMEDIATELY AFTER ROTATION GPWS WENT INOP. NR 3, IMMEDIATELY AFTER ROTATI - [SDR IXXA10SMN069S](https://openairdocs.org/sdr/IXXA10SMN069S), Jun 19, 2010: LONGERON. CORRODED. DURING ROUTINE C-CHECK INSP FOUND AFT ACCESSORY COMPARTMENT LONGERON L-23 RT INTERIOR CORRODED AT STA 1380-1400. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED - [SDR IXXA10SMN070S](https://openairdocs.org/sdr/IXXA10SMN070S), Jun 19, 2010: SKIN. CORRODED. DURING ROUTINE C-CHECK INSP FOUND RT WING OTBD L/E OUTER SECTION LOWER SKIN CORRODED AT STA XFS 710.000 - 760.000. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOV - [SDR IXXA10SMN071S](https://openairdocs.org/sdr/IXXA10SMN071S), Jun 19, 2010: SKIN. DENTED. DURING ROUTINE C-CHECK INSP FOUND THE LT WING OTBD FLAP UPPER SKIN DENTED AT STA XF 238.000 - 304.000. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED EX - [SDR IXXA10SMN072S](https://openairdocs.org/sdr/IXXA10SMN072S), Jun 19, 2010: SKIN. CRACKED. DURING ROUTINE C-CHECK INSP FOUND RT WING NR 4 STUB WING LOWER SKIN CRACKED. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED DAMAGED AREA. PERFORMED NDT - [SDR IXXA10SMN067S](https://openairdocs.org/sdr/IXXA10SMN067S), Jun 18, 2010: CARGO TRACK. CORRODED. DURING ROUTINE C-CHECK INSP FOUND MAIN CARGO COMPARTMENT NR 6 TRACK CORRODED AT STA 372.000. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED DAMAGED AREA. FABRI - [SDR IXXA10SMN063S](https://openairdocs.org/sdr/IXXA10SMN063S), Jun 17, 2010: SKIN. CORRODED. DURING ROUTINE C-CHECK INSP, FOUND RT WING INBD L/E OUTER SECTION UPPER PART CORRODED AT STA XW 257.000. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED DAMAGED - [SDR IXXA10SMN065S](https://openairdocs.org/sdr/IXXA10SMN065S), Jun 17, 2010: ANGLE. CORRODED. DURING ROUTINE C-CHECK INSP, FOUND EMPENNAGE VERTICAL STABILIZER TO FUSELAGE LT JOINT ANGLE CORRODED AT STA 1640.382. REMOVED CORROSION. FOUND OUT OF LIMITS. RE - [SDR IXXA10SMN066S](https://openairdocs.org/sdr/IXXA10SMN066S), Jun 17, 2010: SKIN. CORRODED. DURING ROUTINE C-CHECK INSP, FOUND LT HORIZ STABILIZER ELEVATOR LOWER SKIN CORRODED AT STA XE 195.313, 149.000, AND 132.750. REMOVED CORROSION. FOUND OUT OF LIM - [SDR IXXA10SMN064S](https://openairdocs.org/sdr/IXXA10SMN064S), Jun 16, 2010: FITTING. CORRODED. DURING ROUTINE C-CHECK, INSP FOUND LT MLG WHEEL WELL FRAME FITTING CORRODED AT FS 879.000 LONGERON 24. REMOVED CORRODED FITTING. FABRICATED NEW FITTING, SPLICES - [SDR IXXA10SMN061S](https://openairdocs.org/sdr/IXXA10SMN061S), Jun 16, 2010: SKIN. CORRODED. DURING ROUTINE C-CHECK INSP FOUND LT WING UPPER PANEL EXTERNAL SKIN CORRODED AT STA XRS 204.000 STR 14. REMOVED CORROSION. FOUND OUT OF LIMITS. PERFORMED NDT IN - [SDR IXXA100036O](https://openairdocs.org/sdr/IXXA100036O), Jun 4, 2010: CONTROLLER. DEFECTIVE. DURING CRUISE, CABIN RATE OF CLIMB RAISED QUICKLY TO 10,000 FT, FLIGHT ENGINEER RAN PNEUMATIC TO HIGH AND OPERATED THE PRESSURE CONTROL VALVE. THE CREW WAS PERM - [SDR IXXA100029S](https://openairdocs.org/sdr/IXXA100029S), May 1, 2010: SKIN. CRACKED. DURING PREFLIGHT, FOUND VERTICAL STABILIZER L/E CRACKED AT STA ZFS 292 CTR LINE. REPLACED CRACKED L/E WITH INTERIM REPAIR IAW FVCI DWG NR 55-10165-1. - [SDR IXXA090065O](https://openairdocs.org/sdr/IXXA090065O), Nov 5, 2009: REGULATOR. DEFECTIVE. DURING CLIMB OUT FROM NR 2 ENG COMPRESSOR STALLED WITH GEAR UP, EPR 1.86 AND ANTI-ICE VALVE ON. THE CREW RETURNED TO WITHOUT FURTHER INCIDENT. MX REPLACED BOTH - [SDR IXXA090038O](https://openairdocs.org/sdr/IXXA090038O), Aug 5, 2009: ANTENNA. DEFECTIVE. DURING CRUISE, WEATHER RADAR WILL NOT PAINT AND STABILIZATION INOP. THE CREW RETURNED TO DEPARTURE AND LANDED WITHOUT FURTHER INCIDENT. MX REPLACED WEATHER RADA - [SDR IXX2008F00093](https://openairdocs.org/sdr/IXX2008F00093), Sep 7, 2008: LINE. LOOSE. DURING TAKEOFF ROLL, NR (1) ENGINE WOULD NOT ACCELERATE PAST 78 PERCENT. NR 2 WITH CORRESPONDING LOW N1, FUEL FLOW AND EGT. THE CREW REJECTED TAKEOFF AND RETURN - [SDR UPS08852685](https://openairdocs.org/sdr/UPS08852685), Jul 8, 2008: STRUCTURE. DENTED. DENT IN MAIN ENTRY DOOR AROUND AFT FRAME. - [SDR UPS08852664](https://openairdocs.org/sdr/UPS08852664), Jun 12, 2008: FRAME. CORRODED. INSPECTION TYPE-C1, AREA OF CORROSION EXFOLIATON ON AFT SIDE OF STA 70 FRAME, A PIT, BETWEEN L29L AND L30L. REMOVED DAMAGE AND FABRICATED DOUBLER IAW SRM 53-02- - [SDR UPS07850577](https://openairdocs.org/sdr/UPS07850577), Sep 1, 2007: STARTER. LEAKING. INSPECTION TYPE:N/A IFSD - NR 1 ENG SHUTDOWN IN CLIMB PASSING 25000 DUE TO OIL QTY GOING TO ZERO. OIL PRESSURE WAS 12 PSI. SERVICED OIL, RAN ENGINE, FOUND OIL L - [SDR IXXA060453O](https://openairdocs.org/sdr/IXXA060453O), Jun 21, 2006: ENGINE. LEAKING. APPROXIMATELY FIVE HOURS AFTER TAKEOFF FROM TAPA THE NR 2 ENGINE LOW OIL PRESSURE LIGHT ILLUMINATED AND OIL PRESSURE DROPPED TO 20 PSI. THE ENGINE WAS SHUTDOWN - [SDR ARWA20051005](https://openairdocs.org/sdr/ARWA20051005), Oct 20, 2005: BRAKE ASSY. DAMAGED. LOG PAGE NR 117327. NR 2 MAIN WHEEL TIRE BLOWN; NR 2 BRAKE DAMAGED. REMOVED AND REPLACED NR 2 MAIN WHEEL IAW M/M 32-40-1; REMOVED AND REPLACED NR 2 BRAKE ASSEMB - [SDR ABXA050090](https://openairdocs.org/sdr/ABXA050090), Apr 11, 2005: INDICATOR. DEFECTIVE. ON TAKEOFF AND CLIMB, NR 3 ENGINE OIL PRESSURE CLIMBED TO 75 - 80 PSI. TOOK THROTTLE TO IDLE, PRESSURE WENT TO 60 PSI. SECURED NR 3 ENGINE. AIR TURN BACK. AFTER - [SDR IXXA0400113O](https://openairdocs.org/sdr/IXXA0400113O), Oct 19, 2004: WARNING LIGHT. FALSE ACTIVATION. DURING CRUISE AT FL 370 LOWER CARGO COMPARTMENT FIRE WARNING ILLUMINATED. DISCHARGED BOTH FIRE EXTINGUISHERS. CREW RETURNED AND LANDED WITHOUT INCIDENT. UPON LA - [SDR IXXA0400102O](https://openairdocs.org/sdr/IXXA0400102O), Aug 7, 2004: ENGINE. FAILED. DURING CRUISE FROM KSUU TO PHIK, NR 4 ENGINE LOSS OF ALL OIL QUANTITY AND OIL PRESSURE OF 12PSI. ENGINE NR 4 OIL LIGHT CAME ON. CREW SHUT DOWN NR 4 ENGINE AND A - [SDR UPS04842886](https://openairdocs.org/sdr/UPS04842886), Jul 22, 2004: FITTING. GOUGED. INSPECTION TYPE: C3, C-1 DOOR AFT LOWER GUIDE PIN FITTING WORN GOUGED. REMOVED DAMAGED FITTING IAW UPS SRM 51-3-0. DAC DWG NR 5754075. FOUND TO BE OUT OF LIMITS - [SDR ARWA20040704](https://openairdocs.org/sdr/ARWA20040704), Jul 19, 2004: SKIN PANEL. CRACKED. DURING C-CHECK INSPECTION, RT WING BETWEEN XRS.428 AND XRS.463 AT STRINGER S-64 LOWER SKIN PANEL WITH CRACK, LENGTH 5.25 INCHES. - [SDR UPS04842885](https://openairdocs.org/sdr/UPS04842885), Jul 16, 2004: SEAT TRACK. CRACKED. INSPECTION TYPE: C3 STA 65-75 RBL 36 SEAT TRACK LOBES OBLONGED. REMOVED FLOOR PANELS FS 70-170 FOM. REMOVED SEAT TRACK,DAMAGED OUT OF LIMITS IAW SRM 53-2-3. DRI - [SDR UPS04842874](https://openairdocs.org/sdr/UPS04842874), Jul 2, 2004: SEAT TRACK. WORN. INSPECTION TYPE: C3, STA 595-600 RBL 36 SEAT TRACK LOBES ELONGATED/OBLONGED. DAMAGE FOUND OUT OF LIMITS IAW SRM 53-2-3. REMOVED SEAT TRACK SECTION IAW SRM 51-3- - [SDR UPS04842876](https://openairdocs.org/sdr/UPS04842876), Jul 2, 2004: FLOORBOARD. CORRODED. INSPECTION TYPE: C3, STA 280 RBL 1 FLOORBOARD CORRODED. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS. REMOVED CORROSION SECTION OF FLOORBOARD FAB SPLICE PLATES. - [SDR UPS04842877](https://openairdocs.org/sdr/UPS04842877), Jul 2, 2004: FLOORBOARD. CORRODED. INSPECTION TYPE: C3, STA 235 RBL 8 FLOORBOARD CORRODED. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS. REMOVED CORRODED FLOORBOARD. LOCATED NEW FLOORBOARD AND SP - [SDR UPS04842878](https://openairdocs.org/sdr/UPS04842878), Jul 2, 2004: SEAT TRACK. GOUGED. INSPECTION TYPE: C3, STA 1580 RBL 18 SEAT TRACK LOBES GOUGED AND OBLONGED. BLENDED OUT DAMAGED LOBES AND FOUND OUT OF LIMITS. REMOVED 4 HOLES SEAT TRACK PLUG P/ - [SDR UPS04842879](https://openairdocs.org/sdr/UPS04842879), Jul 2, 2004: SEAT TRACK. WORN. INSPECTION TYPE: C3, SEAT TRACK (D) HAS WORN SCALLOPS AND LUGS BETWEEN FS 1560-1580 DOT NR D 973. BLENDED SEAT TRACK LUGS AND SCALLOPS, FOUND OUT OF LIMITS. OPE - [SDR UPS04842880](https://openairdocs.org/sdr/UPS04842880), Jul 2, 2004: SEAT TRACK. WORN. INSPECTION TYPE: C3 SEAT TRACK E HAS WORN SCALLOPS AND LUGS BETWEEN FS 1400 AND 1410. BLEND AREA IAW UPS SRM 51-1-8, FOUND TO BE OUT OF LIMITS IAW SRM 53-2-3, C - [SDR UPS04842881](https://openairdocs.org/sdr/UPS04842881), Jul 1, 2004: LONGERON. CRACKED. INSPECTION TYPE: C3, FUSELAGE INTERIOR L 17 RT CRACKED FROM FS 1770 TO FS 1774. REMOVED L17R AT STA 1766 IAW SRM 51-1-20D. RECIEVED NEW LONGERON PN 5 649327-43. - [SDR UPS04842882](https://openairdocs.org/sdr/UPS04842882), Jun 30, 2004: FRAME. CORRODED. INSPECTION TYPE: C3, FLC BILGE FRAME HAS CORROSION AT FS 600 RBL 12. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS. CUT PART OF FRAME WITH CORROSION FAB NEW FRAM - [SDR UPS04842883](https://openairdocs.org/sdr/UPS04842883), Jun 30, 2004: WEB. CORRODED. INSPECTION TYPE: C3, AFT PIT WEB CORRODED BETWEEN FS 1200 L35R. REMOVED WEB FROM STA 1160 TO 1220, MAT ID FOR WEB AND SPLICES 7075T6 .125 PO NR 424554.3 IAW DWG - [SDR ARWA20040602](https://openairdocs.org/sdr/ARWA20040602), Jun 19, 2004: INDICATOR. ERRATIC. LOG PAGE NR 107344, AFTER ALL ENGINES SPOOLED AND TAKEOFF STARTED NR 1 EPR (ENGINE PRESSURE RATIO) ERRATIC; DISCONTINUED TAKEOFF AND TAXIED BACK TO RAMP. TRANSF - [SDR ARWA20040601](https://openairdocs.org/sdr/ARWA20040601), Jun 9, 2004: AMPLIFIER. MALFUNCTIONED. DURING TAXI, NR 2 ENGINE FIRE WARNING INTERMITENTLY ILLUMINATED FIRE WARNING TEST INOPERATIVE, SHUT DOWN ENGINE; RETURNED TO RAMP. NO FIRE NOTED. CHECK FIRE WAR - [SDR 0375](https://openairdocs.org/sdr/0375), Feb 17, 2004: FRAME. CORRODED. DURING CPCP TASK 5570-0551 FORWARD LOWER CARGO COMPARTMENT CIRCUMFERENTIAL FRAME LOWER LEG CORRODED AT FS 80 BETWEEN LONGERON 36R AND 35R AND IDENTIFIED AS LEVE - [SDR 0378](https://openairdocs.org/sdr/0378), Feb 17, 2004: FRAME. CRACKED. DURING CPCP TASK NR 5570-0551 FORWARD LOWER CARGO COMPARTMENT FORWARD FRAME FITTING CRACKED AT FS299 BETWEEN LONGERON 32R AND 33R. - [SDR U2R2004F00000](https://openairdocs.org/sdr/U2R2004F00000), Oct 29, 2003: SPAR CAP. CRACKED. DURING REPETIVE COMPLIANCE WITH AD AND SB, DETECTED 2 CRACKS AT RT WING FRONT SPAR LOWER CAP, REPAIRED IAW SB. REMAINING HOLES STRESS COINED TO CONDITION 1, OPT - [SDR IXXA0300059O](https://openairdocs.org/sdr/IXXA0300059O), Sep 17, 2003: VALVE. MALFUNCTIONED. DURING CLIMB NR 4 ENG QTY DROPPED & OIL PRESS ROSE TO 60 PSI, TEMP INCREASED. POWER WAS REDUCED PARAMETERS REDUCED OIL PRESS, OIL TEMP REDUCED 20 DEGREES & OIL - [SDR ARWA20030606](https://openairdocs.org/sdr/ARWA20030606), Jun 25, 2003: PIN. DAMAGED. ON WALK-AROUND FOUND LT MAIN LANDING GEAR EYEBOLT ACTUATOR WITH EXCESSIVE GAP AT PIN BOSS ATTACHMENT. REMOVED LT MAIN LANDING GEAR ROUTED TO SHOP FOR ACTUATOR P - [SDR UPS03840930](https://openairdocs.org/sdr/UPS03840930), Jun 16, 2003: LONGERON. CRACKED. INSPECTION TYPE: C LONGERON 17L AND FWD END FITTING CRACKED AT BS 1768 REMOVED LONGERON 17L AND END FITTING. LOCATED, DRILLED LONGERON AND END FITTING IAW SRM 5 - [SDR UPS03840931](https://openairdocs.org/sdr/UPS03840931), Jun 16, 2003: DOOR FRAME. MISLOCATED. INSPECTION TYPE: C, MAIN CABIN AT STA 1660-R2 DOOR JAMB WEB HAS DOUBLE DRILLED HOLES. REM FASTENERS FROM DOOR JAMB WEB. REM AIR GRILL AND R2 DOOR DRAIN PAN. TRI - [SDR UPS03840908](https://openairdocs.org/sdr/UPS03840908), Jun 6, 2003: LONGERON. CRACKED. INSPECTION TYPE: C3 AFT PIT FS 1350, LONGERON 35L IS CRACKED. REMOVED CRACKED LONG 35L FS 1270 TO 1350 IAW SRM 51-1-20D. LOCATED AND DRILLED UP NEW LONG IAW SRM - [SDR UPS03840907](https://openairdocs.org/sdr/UPS03840907), Jun 5, 2003: SKIN. CRACKED. INSPECTION TYPE:C3 LOWER FUSELAGE CENTER SECTION AT FS 1350 LONGERON 34L FUSELAGE SKIN IS CRACKED. REMOVED 2 EA EXISTING REPAIR DOUBLERS, TRIMMED OUT CRACK FS 1 - [SDR UPS03840906](https://openairdocs.org/sdr/UPS03840906), Jun 4, 2003: LONGERON. CRACKED. INSPECTION TYPE:C3 MAIN CABIN AT FS 1660, LONGERON 11R IS CRACKED. REMOVED OLD LONG 11RT TO FOM , LOCATED, DRILLED, DEBURRED AND INSTALLED NEW LONG 11RT IAW DC8 - [SDR UPS03840932](https://openairdocs.org/sdr/UPS03840932), Jun 3, 2003: ANGLE. CRACKED. INSPECTION TYPE: C, R/W/W KEEL BEAM INSIDE ACCESS DOVER STA 935, BEAM IS CRACKED REM MLG LT AND RT DOOR ACTUATORS, LT AND RT W/W WEBS TO FOM. LOC DRI LLED AND I - [SDR ABXA020364](https://openairdocs.org/sdr/ABXA020364), Dec 18, 2002: LINK. BROKEN. RT WING INBOARD SPOILER WOULD NOT DEPLOY. REMOVED AND REPLACED BROKEN ACTUATOR CRANK LINKS IN THE INBOARD AND OUTBOARD POSITIONS FOR THE RT INBOARD SPOILER PANE All 55: https://openairdocs.org/engine/pratt-whitney-jt3d-3/reports.md ## STCs that may be installed (OpenAirDocs) (3) 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 SE01110AT](https://openairdocs.org/stc/SE01110AT): Remove and replace JT3D main accessory gearbox housing split line gasket with PTM International gasket. Jet Avion Corporation. Lists JT3D Series - [STC SE87WE](https://openairdocs.org/stc/SE87WE): Replace the airfoils on P&WA P/Ns 505351, 536751, 665951, 665851 first stage turbine nozzle guid vanes on P&WA engine models listed. Chromizing Company - [STC SE1WE](https://openairdocs.org/stc/SE1WE): Valve assembly 126495. Limited to those engines having serial number suffix 'B'. Telecomputing Corp. Lists JT3D Series --- 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.