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Aircraft record

N452UW1991 Boeing 737-4B7

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Aug 12, 2014.

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply102 service difficulty reports

Registration
Deregistered
Last based in
Wilmington, DE
owner city / state
Engine
CFM56 SERIES · 2200 hp
Cfm Intl.
Owners
1
since 1991
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
102
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
Jan 18, 1991
Canceled
Aug 12, 2014
Airworthiness
Standard · Transport
Airworthiness date
Jan 18, 1991

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
1991
Serial number
24979
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
A57B61

Engine

Make and model
Cfm Intl. Cfm56 Series
Type
Turbo-fan
Power
2200 hp

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

Ownership history

Ownership history from FAA records
  1. 1991 – 2014Wilmington 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 (102)

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.

  • Lights · lens · missingMay 19, 2014

    REPORTED AISLE EMERGENCY LIGHT MISSING LENS COVER AT 12ABC. INSTALLED LENS COVER AS REQUIRED AT 12ABC.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · sign · unsecureMay 16, 2014

    CREW REPORTED THE FLOOR EXIT SIGN AT 12C HANGING BY WIRES. REPLACED EMERGENCY EXIT SIGN AT 12C. OPERATIONS CHECKED GOOD IAW AMM 33-51-11-962-002.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Landing gear · circuit board · faultyFeb 22, 2014

    DURING CRUISE, CREW REPORTED A SYS A FLIGHT CONTROL MASTER CAUTION. FLIGHT ATTENDANTS HEARD A LOUD POP FROM CTR OF ACFT. CREW FOLLOWED QRH & RETURNED TO FIELD AT CLT WITHOUT INCIDENT. MX REPLACED GEAR TRANSFER VLV CONTROL BOARD. OPERATIONS CHECKED GOOD IAW AMM 32-09-20-724-015. OPERATIONS CHECKED…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Lights · lens · brokenJan 27, 2014

    MAINTENANCE REPORTED THE RT OVERWING AFT EXIT SIGN IS IN POOR CONDITION. MAINTENANCE REPLACED BROKEN LENS ON RT OVERWING EXIT SIGN PER AMM 33-51-22.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · battery pack · dischargedJan 26, 2014

    MAINTENANCE REPORTED THE EMERGENCY LIGHTS AT ROW 12LT SIDEWALL, LOWER LIGHT BY EMERGENCY AFT INOPERATIVE. EXTERIOR EMERGENCY LIGHT, FWD, ALSO INOPERATIVE. LT SIDE OF ACFT BETWEEN FWD & AFT HATCH. R & R EXIT LIGHT BATTERY PACK AT CTR OVERHEAD. ALL EXIT LIGHTS ILLUMINATE NORMAL NOW.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · support · corrodedNov 30, 2013

    C6 CHECK CORROSION FOUND ON U CHANNEL SUPPORT FOR NLG DOOR STOP AT APPROXIMATELY BS 219.8, RBL 4. REPLACED LOWER CHORD AT BS 219.8, RBL 4 IAW B737 SRM 53-10-08-2R-13.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · angle · corrodedNov 21, 2013

    C6 CHECK LEVEL 2 EXFOLIATION CORROSION CHORD ANGLE AT CTR WING BOX OF LT REAR SPAR AT BS 664 BETWEEN LBL 45.5 TO LBL 65. REPAIRED CHORD ANGLE AT CTR WING BOX OF LT REAR SPAR AT BS 664 BETWEEN LBL 45.5 TO LBL 65 IAW EA 505782.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Air conditioning and pressurization · unknown · smokeNov 1, 2013

    AFT F/A REPORTED SMOKE WAS COMING FROM AROUND BULKHEAD AREAS. ACCOMPLISHED CABIN AIR QUALITY TROUBLESHOOTING WITH NO FAULTS NOTED. NO FURTHER OCCURENCES.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Placards and markings · placard · missingOct 9, 2013

    ROW ABC EMERGENCY PLACARD MISSING. INSTALLED EMERGENCY PLACARD AT ROW ABC.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · light · looseOct 8, 2013

    EMERGENCY EXIT ROW LIGHT ON SEAT LOOSE. SECURED EMERGENCY EXIT ROW LIGHT. OPS CHECK GOOD.

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

Showing the 10 most recent of 102 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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