# N637TW: 1992 Boeing 767-33A, registration cancelled 2014-04-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 24, 2014
- Status when cancelled: Valid registration
- Airframe: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (registry code 1385209)
- Engine: [Pratt & Whitney PW4060C](https://openairdocs.org/engine/pratt-whitney-pw4060c) (registry code 51677)
- Data sheets: [TCDS E24NE](https://openairdocs.org/tcds/E24NE) (OpenAirDocs)
- Serial number: 25403
- Year built: 1992
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 14, 2009
- Certificate issued: December 8, 2008
- Last registry action: March 14, 2013
- Mode S code: A8597B
- Owner when cancelled: [Aft Trust Sub I](https://openairdocs.org/faa-owner/AFT%20TRUST%20SUB%20I)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7357° N, 75.5321° W: Placed by OpenAirDocs: center of Wilmington, DE, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N637TW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=637TW
- Page: https://openairdocs.org/deregistered/N637TW-2014-04-24

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Boeing 767-33A: https://openairdocs.org/model/boeing-767-33a.md

## Service difficulty reports (66, newest 50)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR RYNA2013012200002](https://openairdocs.org/sdr/RYNA2013012200002), Jan 22, 2013: PUMP. FAILED. LEFT AFT BOOST PUMP FAILED INFLIGHT. PLACED ON MEL 28-22-1 CAT C DDD 1 FEB 2013. ISSUED DMI 3025. SUPPLEMENTAL REPORT TO FOLLOW.
- [SDR RYNA2013012100001](https://openairdocs.org/sdr/RYNA2013012100001), Jan 21, 2013: SCAVENGE PUMP. LEAKING. NR 1 ENGINE OIL SCAVENGE PUMP LEAKING. REPLACED OIL SCAVENGE PUMP IAW AMM 79-21-00 P 401. OPERATIONAL AND LEAK CHECK NORMAL. INSPECTED MASTER CHIP DETECTOR PER 
- [SDR RYNA201211260040](https://openairdocs.org/sdr/RYNA201211260040), Nov 26, 2012: DOOR. BENT. ON POSTFLIGHT NOTICED RIGHT MAIN GEAR TRUNNION PANEL (DOOR) BENT. ACCOMPLISHED TEMP (INTERIM) REPAIR IAW DER ENGINEERING DRAWING 52-12548-1, 8110-3 APPROVAL DAT
- [SDR RYNA201210280039](https://openairdocs.org/sdr/RYNA201210280039), Oct 28, 2012: WIRE HARNESS. BROKEN. WIRE HARNESS BROKEN FROM EMERGENCY TRACK LIGHTING TO BATTERY PACK AT SEAT ROW 21GH. REMOVED AND REPLACED LUMINESCENT SYSTEM WIRE HARNESS FROM EMERGENCY TRACK LI
- [SDR RYNA201210020038](https://openairdocs.org/sdr/RYNA201210020038), Oct 2, 2012: ADC. FAILED. DUAL AIR DATA COMPUTER FAILURE. RETURNED TO LAND AT RFD. REMOVED AND REPLACED LEFT AND RIGHT AIR DATA COMPUTERS PER AMM 34-12-01. PERFORMED HIGH LEVEL LEAK CHEC
- [SDR RYNA201208280034](https://openairdocs.org/sdr/RYNA201208280034), Aug 28, 2012: HYDRAULIC LINE. CHAFED. FOUND PRESSURE LINE IN NUMBER ONE PYLON THAT HAD CHAFED AGAINST AN CLAMP. INSTALLED TEMPORARY LINE PAR GMM VOL 6 , CHAPTER 29RY01. INSTALLED PERMANENT TUBE (LIN
- [SDR RYNA201208210033](https://openairdocs.org/sdr/RYNA201208210033), Aug 21, 2012: WIRE. DAMAGED. FLIGHT CREW CALLED MAINTENANCE CONTROL AND REPORTED THAT THE LEFT CENTER BOOST PUMP HAS FAILED RESULTING IN AIR TURNBACK TO CMN. REMOVED AND REPLACED WIRING TO 
- [SDR RYNA201207070029](https://openairdocs.org/sdr/RYNA201207070029), Jul 7, 2012: WARNING SYSTEM. MALFUNCTIONED. ON A/C POWER UP STATUS MSG FWD CARGO FIRE DETECT 1 WILL NOT CLEAR. PLACED ON MEL 25-20-1. SUPPLEMENTAL REPORT TO FOLLOW.
- [SDR RYNA201206260028](https://openairdocs.org/sdr/RYNA201206260028), Jun 26, 2012: SMOKE DETECTOR. DEFECTIVE. AFT LEFT LAVATORY SMOKE DETECTOR DEFECTIVE. REMOVED AND REPLACED L-4 (AFT LEFT) LAVATORY SMOKE DETECTOR. REFERENCE AMM 26-13-01.
- [SDR RYNA201205160025](https://openairdocs.org/sdr/RYNA201205160025), May 16, 2012: HOUSING. FAILED. ON CLIMBOUT 11,000 FT, NR 2 ENGINE OIL PRESSURE STARTED DECREASING, AT 74 PERCENT PER CPM SHUT DOWN ENGINE (PRECAUTIONARY) RETURNED TO LEJ. PERFORMED DETAILED V
- [SDR RYNA201202170009](https://openairdocs.org/sdr/RYNA201202170009), Feb 14, 2012: SLIDE. DISLODGED. L1 DOOR SLIDE ASSY DISENGAGED FROM DOOR WHEN DOOR OPENED BY CREW. INSPECTED AND INSTALLED L1 DOOR SLIDE IAW AMM 25-66-01. SLIDE DID NOT DEPLOY.
- [SDR RYNA201201230007](https://openairdocs.org/sdr/RYNA201201230007), Jan 23, 2012: SKIN. CORRODED. AFT CARGO COMPARTMENT, STA 1130 BL 0.0 SKIN CORROSION. REMOVED AREA OF CORROSION AT STA 1100 PER AMM 51-10-02, TYPICAL EXTERNAL DOUBLER REPAIR REQUIRED. CARRIED
- [SDR RYNA2011092100020](https://openairdocs.org/sdr/RYNA2011092100020), Sep 21, 2011: POWER SUPPLY. INOPERATIVE. L3 AND L4 DOOR SLIDE EMERGENCY LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY AND BATTERY PACK AT POSITION M738 PER AMM 33-51-07. OPERATIONAL CHE
- [SDR RYNA20110921000](https://openairdocs.org/sdr/RYNA20110921000), Sep 21, 2011: POWER SUPPLY. INOPERATIVE. L3 AND L4 DOOR SLIDE EMERGENCY LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY AND BATTERY PACK AT POSITION M738 PER AMM 33-51-07. OPERATIONAL CHE
- [SDR RYNA2011051300013](https://openairdocs.org/sdr/RYNA2011051300013), May 13, 2011: FLAP. OUT OF ADJUST. ON APPROACH TO NGF FLAPS LOCKED AT 20 DEGREES WITH FLAP HANDLE AT POSITION 30. PERFORMED FSEU BITE IAW FIM 27-51-00, FIG 104, STEP 4. NO FAULTS FOUND. PERFORMED
- [SDR RYNA201103140009](https://openairdocs.org/sdr/RYNA201103140009), Mar 8, 2011: SMOKE DETECTOR. INOPERATIVE. AFT LEFT INBOARD LAVATORY SMOKE DETECTOR INOPERATIVE. REMOVED AND REPLACED SMOKE DETECTOR.
- [SDR RYNA2011030500008](https://openairdocs.org/sdr/RYNA2011030500008), Mar 5, 2011: SMOKE DETECTOR. INOPERATIVE. AFT LEFT INBOARD LAVATORY SMOKE DETECTOR INOPERATIVE. REMOVED AND REPLACED SMOKE DETECTOR, REF AMM 26-13-01.
- [SDR RYNA2011021100006](https://openairdocs.org/sdr/RYNA2011021100006), Feb 11, 2011: BATTERY PACK. DISCHARGED. OVERHEAD EMERGENCY LIGHTS OUT IN ROWS 1 5. REMOVED AND REPLACED BATTERY PACK, OPS CHECK GOOD REF 33-51-00.
- [SDR RYNA0210001020036](https://openairdocs.org/sdr/RYNA0210001020036), Oct 13, 2010: BATTERY PACK. DISCHARGED. DURING THE DAILY CHECK, FOUND EMERGENCY FLOOR LIGHTS INOPERATIVE FROM ROW 14 TO ROW 19 ON RT SIDE OF ACFT. R & R EMERGENCY LIGHT BATTERY PACK AT ROW 14 ACFT RT 
- [SDR RYNA2010009020029](https://openairdocs.org/sdr/RYNA2010009020029), Sep 7, 2010: CONTROL UNIT. MALFUNCTIONED. ROOT CAUSE: LIGHT FLICKERED DURING CRUISE. LEFT GEN DRIVE. REMOVED AND REPLACED BPCU PER MM 24-41-03 DUE TO FAULT MESSAGE "REPLACE BPCU", SERVICED LT IDG PER MM
- [SDR RYNA2010007020025](https://openairdocs.org/sdr/RYNA2010007020025), Aug 5, 2010: BRAKE ASSY. DISINTEGRATED. UPON POST FLIGHT INSPECTION THE NR 6 BRAKE WAS FOUND CATASTROPHICALLY DISINTEGRATED. REMOVED AND REPLACED NR 6 MAIN LANDING GEAR BRAKE ASSEMBLY. OPERATIONAL CHE
- [SDR RYNA2010007020022](https://openairdocs.org/sdr/RYNA2010007020022), Jul 21, 2010: SMOKE DETECTOR. INTERMITTENT. AFT LT LAVATORY SMOKE DETECTOR RINGS INTERMITTENTLY UPON DESCENT. CAN BE RESET, BUT WILL RING AGAIN SOON. REMOVED AND REPLACED AFT LT SMOKE DETECTOR PER MM 26-1
- [SDR RYNA2010003260008](https://openairdocs.org/sdr/RYNA2010003260008), Mar 24, 2010: SLIDE. OUT OF POSITION. WHILE ON THE GROUND IN BAH R4 DOOR SLIDE FELL OUT OF CLAMSHELL ONTO CATERING TRUCK SLIDE DID NOT INFLATE. INSPECTED DOOR LINKAGES, HANDLES AND ARMING MECHANISM 
- [SDR RYNA200911170023](https://openairdocs.org/sdr/RYNA200911170023), Nov 10, 2009: BATTERY PACK. DISCHARGED. DURING AIRCRAFT INSPECTION FOUND THE R3 AND R4 EMERGENCY EXTERIOR DOOR LIGHT INOP. REMOVED AND REPLACED THE EMERGENCY LIGHT BATTERY PACK M733 PER AMM 33-51-07, 
- [SDR 35505](https://openairdocs.org/sdr/35505), May 18, 2004: FLOORBEAM. CORRODED. CABIN FLOORBEAM AT STA 1480 LBL 70 CORROSION OUT OF LIMITS B767 SRM 53-00-51. REPAIR REQUIRED. FLOORBEAM CORRODED BECAUSE OF LAY AREA LEAKS. LAY AREA NEEDS TO B
- [SDR TIP2004F00000](https://openairdocs.org/sdr/TIP2004F00000), May 5, 2004: FLOORBEAM. CORRODED. CABIN FLOORBEAM STA 1480, RBL 42, CORRODED. CORROSION OUT OF LIMITS IAW B767 SRM REPAIR REQUIRED. FLOORBEAM IS NEAR GALLEY AREA WHERE SPILLS OCCUR. NEED TO MAKE
- [SDR TIP2004F00004](https://openairdocs.org/sdr/TIP2004F00004), Apr 29, 2004: FLOORBEAM. CORRODED. CABIN FLOORBEAM AT STA 303, RBL 54 THRU RBL 82. CORROSION OUT OF LIMITS. REPAIR REQUIRED. SRM 53-00-51. FLOORBEAM IS IN WET/GALLEY AREA, SPILLS IN AREA CORRODED
- [SDR TIP2004F00003](https://openairdocs.org/sdr/TIP2004F00003), Apr 29, 2004: FLOORBEAM. CORRODED. CABIN FLOORBEAM AT STA 287, RBL 20 THUR 82. CORROSION OUT OF LIMITS IAW B767 SRM REPAIR REQUIRED. FLOORBEAM UNDER WET AREA, SPILLS AND LEAKS CORRODED FLOORBEAM.
- [SDR TIP2004F00002](https://openairdocs.org/sdr/TIP2004F00002), Apr 29, 2004: FLOORBEAM. CORRODED. CABIN FLOORBEAM AT STA 325 RBL 24 THRU 54, CORROSION OUT OF LIMITS. B767 SRM, REPAIR REQUIRED. FLOORBEAM CORRODED BECAUSE OF GALLEY AREA LEAKS. GALLEY AREA NEED
- [SDR TIP2004F00001](https://openairdocs.org/sdr/TIP2004F00001), Apr 29, 2004: FLOORBEAM. CORRODED. CABIN FLOORBEAM AT STA 347, LBL 20 THUR LBL28. CORROSION OUT OF LIMITS B767 SRM, REPAIR REQUIRED. FLOORBEAM HAS CORROSION FROM GALLEY AREA LEAKS, HAVE CORRODED 
- [SDR ZW0A0205801](https://openairdocs.org/sdr/ZW0A0205801), May 30, 2002: WIRE. BROKEN. EGRESS LIGHT SYS WMD 33-51-17 INOP ROW 25H THROUGH 31H CAUSED BY BROKEN WIRE. REPAIRED SEAT TO SEAT CABLE. OPERATIONAL CHECK NORMAL.
- [SDR ZW0A0204602](https://openairdocs.org/sdr/ZW0A0204602), Apr 20, 2002: CONNECTOR. NOT SEATED. THE EGRESS LIGHT WAS INOPERATIVE AT THE AFT RT DOOR, AND THE RT OUTSIDE EMERGENCY EXIT LIGHT, WERE INOPERATIVE. SEATED THE CONNECTOR AT BOTH POWER SUPPLIES.
- [SDR ZW0A0204501](https://openairdocs.org/sdr/ZW0A0204501), Apr 15, 2002: LAMP. THE EGRESS LIGHT AT SEAT 17B WAS INOPERATIVE. REPLACED THE LAMP. CHECK-C 2-9-01 LAX. --CLOSED--
- [SDR ZW0A0204101](https://openairdocs.org/sdr/ZW0A0204101), Apr 7, 2002: CONNECTOR. LOOSE. THE EGRESS LIGHTS WERE INOPERATIVE ON LT SIDE OF CABIN ROWS 2 THROUGH 6. SEATED LOOSE CONNECTOR AT THE POWER SUPPLY.
- [SDR ZW0A0201801](https://openairdocs.org/sdr/ZW0A0201801), Feb 11, 2002: LIGHT. BROKEN. THE EGRESS LIGHT STRIP WAS BROKEN OFF AT SEAT 25A. REPLACED THE LIGHT ASSEMBLY.
- [SDR ZW0A0201101](https://openairdocs.org/sdr/ZW0A0201101), Jan 18, 2002: LIGHT. INOPERATIVE. THE EGRESS LIGHT STRIP WAS INOPERATIVE AT ROW 23L TO THE L4 CABIN DOOR, THE GALLEY BULKHEAD AND THE MID GALLEY. REPLACED THE LIGHT STRIP AT EACH LOCATION.
- [SDR ZW0A0110904](https://openairdocs.org/sdr/ZW0A0110904), Nov 10, 2001: LIGHT. INOPERATIVE. THE CABIN EGRESS LIGHT WAS INOPERATIVE ON THE LT SIDE OF FIRST CLASS, AT SEATS 12B AND 22H, AND WAS MISSING AT SEAT 6B. REPLACED POWER SUPPLY P/N 5822-43 FOR FI
- [SDR ZW0A0108202](https://openairdocs.org/sdr/ZW0A0108202), Sep 10, 2001: CONNECTOR. CONTAMINATED. THE EGRESS LIGHT AT SEAT ROW 1 AND 3, RT SIDE OF CABIN, AND THE RT FORWARD CLOSET, WERE INOPERATIVE. CLEARED AND DRIED THE CONNECTOR AT THE CLOSET LAMP.
- [SDR ZW0A0107302](https://openairdocs.org/sdr/ZW0A0107302), Aug 22, 2001: PIN. THE EGRESS LIGHTS WERE INOPERATIVE AT THE NUMBER 3 CABIN DOOR, LH AND RH SIDE. REPAIRED BROKEN CONNECTOR PIN AT THE LH SIDE NUMBER 3 DOOR. CHECK-C 1-27-01 LAX. 
- [SDR ZW0A0107203](https://openairdocs.org/sdr/ZW0A0107203), Aug 21, 2001: CONNECTOR. LOOSE. THE EGRESS LIGHT WAS INOPERATIVE AT THE LEFT REAR LAVATORY. SECURED FEEDER CABLE CONNECTOR FOR THE EGRESS LIGHT AT THE LEFT LAV.
- [SDR ZW0A0107201](https://openairdocs.org/sdr/ZW0A0107201), Aug 20, 2001: LAMP. THE EGRESS LIGHT WAS INOPERATIVE AT THE LEFT REAR LAV. REPLACED THE LAMP. CHECK-C 1-27-01 LAX. --CLOSED---
- [SDR ZW0A0106008](https://openairdocs.org/sdr/ZW0A0106008), Jul 29, 2001: CONNECTOR. DIRTY. DURING MAINTENANCE THE EGRESS LIGHTS A R1 DOOR WERE INOP DUE TO WEAR. CLEANED FLOOR FLEX CONNECTORS PER MM 33-51-00.
- [SDR ZW0A0106007](https://openairdocs.org/sdr/ZW0A0106007), Jul 29, 2001: LIGHT. DISCONNECTED. DURING MAINTENANCE THE EGRESS LIGHTS AT SEAT 17C WERE INOP DUE TO WEAR. RECONNECTED LAMP ASSY PER MM 33-51-00. LAST CHECK C 01/27/01 LAX.
- [SDR ZW0A0106006](https://openairdocs.org/sdr/ZW0A0106006), Jul 29, 2001: LIGHT. INOPERATIVE. DURING MAINTENANCE THE EGRESS LIGHTS AT SEAT 32 C WERE INOP DUE TO WEAR. RELAMPED PER MM 33-51-00 WITH P/N 8075-1. LAST CHECK C 01/27/01 LAX.
- [SDR ZW0A0106005](https://openairdocs.org/sdr/ZW0A0106005), Jul 27, 2001: CONNECTOR. DURING MAINTENANCE SEATS 1-2-3 JH WERE INOP, THE CAUSE WAS WEAR. REPLACED FLEX CALE CONNECTORS P/N 65801-003 AND RELAMPED ASSY.WITH P/N 97F9705.LAST CHECK C 01/
- [SDR ZW0A0105801](https://openairdocs.org/sdr/ZW0A0105801), Jul 26, 2001: LAMP. THE EGRESS LIGHT AT CABIN SEAT 17C WAS INOPERATIVE. REPLACED THE LAMP. CHECK-C 1-27-01 LAX. --CLOSED--
- [SDR ZW0A0105501](https://openairdocs.org/sdr/ZW0A0105501), Jul 22, 2001: BATTERY PACK. THE EGRESS LIGHTS WERE INOPERATIVE ON RH SIDE OF CABIN, FIRST 3 ROWS. REPLACED THE BATTERY PACK. CHECK-C 1-27-01 LAX. --CLOSED--
- [SDR ZW0A0103201](https://openairdocs.org/sdr/ZW0A0103201), Jun 9, 2001: LIGHT. INOPERATIVE. THE EGRESS LIGHTS WERE INOPERATIVE AT SEATS 17A AND 32A. REPLACED FLEX LAMPS AT BOTH LOCATIONS. CHECK-C 1-27-01 LAX.
- [SDR ZW0A0102702](https://openairdocs.org/sdr/ZW0A0102702), Jun 1, 2001: LIGHT. INOPERATIVE. THE EGRESS LIGHT AT CABIN SEAT 38 RT SIDE WAS INOPERATIVE. REPLACED THE LAMP. CHECK-C 1-27-01 LAX.
- [SDR ZW0A0100601](https://openairdocs.org/sdr/ZW0A0100601), Apr 19, 2001: STARTER. FAILED. DURING ENGINE START GROUND CREW REPORTED RT ENGINE FIRE. CREW SHUT DOWN THE ENGINE AND FIRED BOTH FIRE EXTINGUISHING BOTTLES. ENGINE STARTER REPORTED TO HAVE FA

All 66: https://openairdocs.org/deregistered/N637TW-2014-04-24/reports.md

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