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Aircraft record

N450UW1990 Boeing 737-4B7

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Feb 28, 2018.

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply136 service difficulty reports

Registration
Deregistered
Last based in
Wilmington, DE
owner city / state
Engine
CFM56 SERIES · 9,800 lb thrust
Ge
Owners
1
since 1990
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
136
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Last registered owner
Wilmington Trust Company Trustee
Owner type
Corporation
City, state
Wilmington, DE
Certificate issued
Dec 31, 1990
Canceled
Feb 28, 2018
Airworthiness
Standard · Transport
Airworthiness date
Nov 29, 1990

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Boeing
Model
737-4B7
Year
1990
Serial number
24933
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
149
Engines
2
Max takeoff weight
20,000 and over lb
Mode S code
A573F3

Engine

Make and model
Ge Cfm56 Series
Type
Turbo-fan
Power
9,800 lb thrust

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 1990 – 2018Wilmington Trust Company TrusteeWilmington, DE

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

ADs published since 1998 that may apply (21)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2019-14-02Hydraulic powerAug 27, 2019Airframe (737-4B7)
2002-20-07 R1Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-4B7)
2002-20-07Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-4B7)
2001-11-11Boeing Model 737, 747, and 777 Series AirplanesJul 16, 2001Airframe (737-4B7)Serial numbers per Boeing Service Bulletins 737-25-1371 Rev 2, 737-25-1407, 747-25-3196 Rev 1, 777-25-0111 Rev 1
2001-10-14Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJun 8, 2001Airframe (737-4B7)Serial numbers per Boeing Special Attention Service Bulletins 737-35-1076, 737-35-1077, 747-35-2111, 757-35-0021, 757-35-0022, 767-35-0043, 767-35-0044, 777-35-0008, all dated March 1, 2001. Only with: Equipped with chemical oxygen generators.
Show all 21 ADs
ADSubjectEffectiveApplies to
2001-08-24Boeing Model 737 Series AirplanesMay 10, 2001Airframe (737-4B7)
2000-22-02 R1Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-4B7)
2000-22-02Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-4B7)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (737-4B7)Certain serial numbers: 737 1–2984; 757 1–798; 767 1–682; 777 1–083. Only with: Ranges are line numbers; equipped with Puritan-Bennett passenger and flight attendant oxygen masks as listed in Boeing Service Bulletins 737-35-1049, 757-35-0014, 767-35-0033, or 777-35-0005.
99-11-05Boeing Model 737 Series AirplanesJun 28, 1999Airframe (737-4B7)
99-22-16Boeing Model 737 Series AirplanesDec 7, 1999Airframe (737-4B7)Serial numbers per Boeing Service Bulletin 737-52-1128, dated April 22, 1999, or Boeing Service Bulletin 737-52-1137, dated May 13, 1999
98-13-12 R1Boeing Model 737, 747, 757, 767, and 777 Series AirplanesDec 28, 1998Airframe (737-4B7)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368 Revision 2, 757-27A0128, 767-27A0156, 777-27A0029 Revision 1
98-22-10Boeing Model 737 Series AirplanesNov 12, 1998Airframe (737-4B7)Serial numbers per Boeing Service Bulletin 737-53A1108, Revision 5, dated October 26, 1989
98-18-20Boeing Model 727 and Model 737 Series Airplanes Equipped with J.C. Carter Company Fuel…Oct 21, 1998Airframe (737-4B7)Only with: Equipped with J.C. Carter Company fuel valve actuators P/N 40574-2 (Kearfott Models 3715-7 and -8) or 40574-5 (Kearfott Model 3715-9).
98-13-12Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJul 6, 1998Airframe (737-4B7)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368, 757-27A0128, 767-27A0156, and 777-27A0029, dated March 26, 1998
98-03-10Boeing Model 737, 747, 757, and 767 Series AirplanesFeb 19, 1998Airframe (737-4B7)Certain serial numbers: 737 1–2836; 747 1–1104; 757 1–731; 767 1–642. Only with: Equipped with non-powered IPECO pilots' seats; ranges are line position numbers.
97-22-07Boeing Model 737 Series AirplanesNov 12, 1997Airframe (737-4B7)Certain serial numbers: 737 292–2565. Only with: Limited to airplanes with line numbers 292 through 2565 inclusive.
97-18-06Boeing Model 737 Series AirplanesNov 12, 1997Airframe (737-4B7)
97-05-10Boeing Model 737 Series AirplanesMar 19, 1997Airframe (737-4B7)Only with: Having a main rudder power control unit (PCU) identified in Boeing Service Letter 737-SL-27-112-B, dated February 6, 1997.
97-04-01Boeing Model 737 Series AirplanesMar 21, 1997Airframe (737-4B7)Serial numbers per Boeing Service Bulletin 737-27-1155, dated October 26, 1989, as revised by Notices of Status Change 737-27-1155NSC1, NSC2, and NSC3
95-23-10Boeing Model 737 Series AirplanesDec 13, 1995Airframe (737-4B7)

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (136)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Placards and markings · lens · missingDec 11, 2013

    THE EXIT PLACARD COVER AT ROW 12, ACFT LT, APPEARS TO BE MISSING. INSTALLED MISSING PLACARD LENS. ACFT OK FOR CONTINUED SERVICE.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · stop fitting · crackedOct 2, 2013

    C1 CHECK, CRACK ON FORWARD SERVICE DOOR AFT FRAME DOOR STOP FITTING CUTOUT 3RD DOWN AT BS320. REPLACED FORWARD SERVICE DOOR IAW JOB CARD 03C10652008.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · door frame · crackedOct 2, 2013

    C1 CHECK, CRACK ON FWD SERVICE DOOR LOWER CORNER OF AFT FRAME AT BS 320. REPLACED FORWARD SERVICE DOOR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Doors · stop fitting · crackedOct 2, 2013

    C1 CHECK, CRACK ON FWD SERVICE DOOR AFT FRAME DOOR STOP FITTING CUTOUT 4TH DOWN AT BS 320. REPLACED FWD SERVICE DOOR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · flap track · corrodedOct 1, 2013

    C1 CHECK, CORROSION FOUND ON NR 2 FLAP TRACK UPPER SURFACE ATTACH AREA, UPPER FORWARD TRANSMISSION BOLT HOLE & ON THE OTBD SIDE JUST FORWARD OF THE TRANSMISSION ON TRACK WEB & TWO FASTERERS LOCATED INBD OF WS204.40 AT T/E TO REAR SPAR. REPLACED NR 2 FLAP TRACK IAW EO 5713V044.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · skin · delaminatedSep 27, 2013

    C1 CHECK, DELAMINATION ON RT OTBD FORE FLAP LOWER SURFACE APPROX 43 INCHES FROM INBD END. REPAIRED IAW SRM 57-53-02-2R-2.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · crackedSep 26, 2013

    C1 CHECK, CRACK ON FUSELAGE SKIN AT BS 727F+4. REPAIRED SKIN IAW SRM 53-00-01-2R-31.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Air conditioning and pressurization · unknown · odorAug 12, 2013

    DURING DEPLANING, THE LEAD F/A REPORTED AN ODOR IN FIRST CLASS AREA. MX ACCOMPLISHED 03L00021001. ACFT FOUND TO BE OK FOR SERVICE.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · lens · looseApr 25, 2013

    CREW REPORTED ROW 10 EMERGENCY EXIT LENSE LOOSE. MAINTENANCE TIGHTENED LIGHT LENS. CHECKS GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · spoiler · delaminatedApr 3, 2013

    RON VISIT - DELAMINATION ON LEFT INBOARD GROUND SPOILER AT APPROX 21.5 INCHES FROM INBOARD END & 8.5 INCHES FROM TRAILING EDGE. REPLACED LEFT INBOARD GROUND SPOILER IAW B737 AMM 27-62-12-044-001.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Showing the 10 most recent of 136 reports.

Related aircraft

Show all 8 related aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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