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Aircraft record

N503UW1986 Boeing 737-301

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Jun 19, 2008.

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply11 service difficulty reports

Registration
Deregistered
Last based in
Salt Lake City, UT
owner city / state
Engine
UNKNOWN ENG
Ama/Expr
Owners
1
since 2007
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
11
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Last registered owner
Bank Of Utah Trustee
Owner type
Corporation
City, state
Salt Lake City, UT
Certificate issued
Nov 21, 2007
Canceled
Jun 19, 2008
Airworthiness
Standard · Transport
Airworthiness date
May 1, 1986

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
737-301
Year
1986
Serial number
23237
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
A646EC

Engine

Make and model
Ama/Expr Unknown Eng
Type
Turbo-fan

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

Ownership history

Ownership history from FAA records
  1. 2007 – 2008Bank Of Utah TrusteeSalt Lake City, UT

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 (737-301)
2002-20-07 R1Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-301)
2002-20-07Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-301)
2001-11-11Boeing Model 737, 747, and 777 Series AirplanesJul 16, 2001Airframe (737-301)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 (737-301)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 (737-301)
2000-22-02 R1Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-301)
2000-22-02Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-301)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (737-301)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 (737-301)
99-22-16Boeing Model 737 Series AirplanesDec 7, 1999Airframe (737-301)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 (737-301)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 (737-301)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 (737-301)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 (737-301)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 (737-301)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 (737-301)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 (737-301)
97-05-10Boeing Model 737 Series AirplanesMar 19, 1997Airframe (737-301)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 (737-301)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 (737-301)

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

Service Difficulty Reports (11)

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.

  • Air conditioning and pressurization · outflow valve · stickingAug 15, 2007

    CLT FLT 1107 - DURING CRUISE, EN ROUTE FROM EWR TO CLT AT FL340, THE AIRCRAFT LOST CABIN PRESSURE. CABIN ALTIUDE CLIMBED TO 14,000 FEET. CREW DESCENDED FLIGHT AND REPRESSURIZED CABIN AT FL280. SYSTEM OPERATED OK IN MANUAL, BUT STANDBY WAS INOPERATIVE. APPEARS AFT OUTFLOW VALVE IS STICKING. FLIGHT…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · stop fitting · crackedMay 1, 2007

    AFT FRAME OF FWD CARGO DOOR SURROUND AT BS 492 S-24R LOWER DOOR STOP CRACKED. INSTALLED DOUBLER PER EA 98633, DEFECT SIZE: .5 INCH.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · wornMay 1, 2007

    STA 835 STR 25R, BLENDED & TREATED PER EA 98621. DEFECT SIZE: 2 INCHES

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Fuselage · stringer · corrodedMay 1, 2007

    TWO AREAS, 6" LONG S-27L BETWEEN BS 986.5 & BS 1006. SPLICED IN PORTS OF IDENTICAL PART PER SRM 53-00-03, REPAIR NR 1, FIG 201; CORR TASK C53-202-01. DEFECT SIZE: 6" LONG (2 AREAS)

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · stiffener · crackedMay 1, 2007

    LBL 6 AT STA 663.75 AT CENTER WING SPAR, FWD WALL OF MLG WHEELWELL ABOVE A. INSTALLED DOUBLER PER TR 57-10-03 REV B. DEFECT SIZE: 1"

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · crackedMay 1, 2007

    BS 727D, JUST ABOVE S-10L. FAB'D & INSTALLED DOUBLER PER SRM 53-00-01, REP 31. DEFECT SIZE: 3"

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · stiffener · crackedMay 1, 2007

    RBL 6 STA 663 FWD WALL OF MLG WHEEL WELL JUST ABOVE B SYS HYD PUMP. INSTALLED DOUBLER PER EA 98640. DEFECT SIZE: 2"

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · stringer · crackedMar 20, 2007

    HFEC INDICATES .125 INCH CRACK IN STRINGER S-11L BS 525. DETECTED BY ROTATING EDDY CURRENT. REMOVED CRACKED STRINGER & REPAIRED PER EA 84289 & SRM 51-70-12.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · crackedMar 19, 2007

    A 4.75 INCH CRACK FOUND LONGERON 12L BETWEEN STA 500D AND 520. CRACK REMOVED & REPAIRED PER EA 84260 & SRM 53-00-01

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · damagedDec 31, 2006

    A 3.625 INCH CRACK FOUND AT RIGHT SECTION 46 SKIN BETWEEN STA 867 & 887 AT LAP JOINT S25R. REMOVED DAMAGE & INSTALLED DOUBLER & TRIPLER REPAIR PER BOEING SRM 53-00-01 FIG 201.

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

Showing the 10 most recent of 11 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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