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Aircraft record

N137201999 Boeing 737-724

Registration validUnclaimedSource: FAA, updated Oct 19, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply116 service difficulty reports

Registration
Valid
expires Oct 31, 2029
Based in
Chicago, IL
owner city / state
Engine
CFM56 SERIES · 2200 hp
Cfm Intl.
Owners
1
since 1999
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
116
since 1995

Registration

FAA Aircraft Registry · Oct 19, 2026
Registered owner
United Airlines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Mar 1, 1999
Expires
Oct 31, 2029
Airworthiness
Standard · Transport
Airworthiness date
Feb 25, 1999

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
737-724
Year
1999
Serial number
28939
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
A097E9

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. 1999 – nowUnited Airlines INCChicago, IL · current
  2. Date unknownDouglas Airport Co INCSanta Monica, CA · different airframe: 1934 Douglas Dc2 S/N 1246

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 19, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

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

Accident history for this model

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 (737-724)
2002-20-07 R1Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-724)
2002-20-07Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-724)
2001-11-11Boeing Model 737, 747, and 777 Series AirplanesJul 16, 2001Airframe (737-724)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 (737-724)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 (737-724)
2000-22-02 R1Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-724)
2000-22-02Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-724)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (737-724)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 (737-724)
99-22-16Boeing Model 737 Series AirplanesDec 7, 1999Airframe (737-724)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 (737-724)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 (737-724)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 (737-724)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 (737-724)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 (737-724)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 (737-724)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 (737-724)
97-05-10Boeing Model 737 Series AirplanesMar 19, 1997Airframe (737-724)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 (737-724)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 (737-724)

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

Service Difficulty Reports (116)

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.

  • Indicating and recording systems · warning light · false activationSep 23, 2026

    MASTER CAUTION LIGHT ONCE TO THRUST APPLIED UNDER 40KTS TOMC DEBRIEFED THE CREW AND FOUND NO ASSOCIATED MASTER CAUTION ANNUNCIATOR ILLUMINATED DURING THE RTO. CAPT AGREED TO ATTEMPT ANOTHER TAKEOFF. BRAKE TEMPS ARE GOOD PER AMM 05-51-07.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Air conditioning and pressurization · unknown · odorAug 20, 2026

    UNUSUAL ODOR & FUMES WHEN PACKS ARE ON THE ENGINE BLEED. ODOR & FUMES ARE NON EXISTENT WHEN PACKS ARE ON THE APU BLEED. ODOR STARTED WHEN TRANSFERRING PACKS FROM APU TO THE ENGINE. ODOR DISSAPATED WHEN TRANSFERRING BLEEDS FROM ENGINES BACK TO APU BLEED. CONDITIONAL INSPECTION WAS COMPLIED WITH IAW…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Landing gear · sensor · faultedMay 7, 2026

    NOSE GEAR RED AND GREEN LIGHT ILUMINTED NLG RED AND GREEN LIGHTS SHOWING IN AIR WITH GEAR HANDLE AT OFF AND UP POSITIONS. PSEU BITE SHOWS 3 FAULTS. NOSE DN DISAGREE 32-61013. NOSE DWN A FAULT 32-61004. PERFORMED GV OF NLG AREA UPON ARRIVAL TO GATE IAW AMM 32-21-00. NO DAMAGE AT THIS TIME NOTED.…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Wings · spar · corrodedDec 20, 2025

    FOUND CORROSION AT LT WING FRONT SPAR AT IFSS 120, BOOST PUMP LOCATION. REPAIRED THE LT WING FRONT SPAR AT IFSS 120 BOOST PUMP LOCATION, IAW ECRA 5720-03588.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · frame · damagedOct 21, 2025

    AFT CARGO, AFT BULKHED AT STA 947.5 BETWEEN STR-24R AND 25R FRAME HAS A GOUGE. REPAIRED PER ECRA 5311-03407 PART 1 INTERIM REPAIR, PERFORM AN INSPECTION PER PART 2 OF ECRA 5311-03407 TO BS947.5 FRAME REPAIR AT S-25R ON OR BEFORE THE AIRCRAFT REACHING 50,000 TOTAL FLIGHT CYCLES VERIFIED RII,

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · frame · damagedOct 21, 2025

    WHILE PREPARING FWD CARGO DOOR STRAP FOR FABRICATION FOUND AN ELONGATED HOLE LOCATED AT RBL21, STA 500, AND S-26R. REPAIRED PER ECRA 5311-03406 PART 1 INTERIM REPAIR, ON THE BS500 FRAME INNER CHORD REPAIR BETWEEN S-24R AND 26R, ACCOMPLISH INSPECTION REQUIREMENTS PER PART 2 OF LATEST REV OF…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · frame · damagedOct 15, 2025

    FUSELAGE FRAME STATION 520 HAS PUNCTURE DAMAGE FOUND AT RH SIDE BETWEEN STRINGERS 13R AND 12R. REFERENCE BAM N/R 002865843 FOR ALL WORK ACCOMPLISHED PERFORMED INTERIM REPAIR PER EC/RA#: 5311-03402. PLACED ON DIPON BS 520 FRAME WEB BETWEEN S-11R AND S-13R, ACCOMPLISH INSPECTION REQUIREMENTS PER…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · door sill · corrodedSep 16, 2025

    R1 DOOR INNER CHORD CORRODED REMOVED AND REPLACED R1 DOOR LOWER MAIN SILL DOOR CHORD PER SRM 51-40-02. REFERENCE BAM NON-ROUTINE # 2880874 FOR REMOVAL AND INSTALLATION.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · door sill · corrodedSep 16, 2025

    AFT WET AREA R2, DOOR CHORD IS CORRODED IN MULTIPLE AREAS FROM APPROX. STA. 897 TO STA. 1000 REMOVED AND REPLACED R2 DOOR LOWER MAIN SILL DOOR CHORD PER SRM 51-40-02. REFERENCE BAM NON-ROUTINE # 2876134 FOR REMOVAL AND INSTALLATION .

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · stringer · corrodedSep 16, 2025

    LEFT STRINGER 26 IS CORRODED FROM STA 360 TO STA 380 REPAIRED STRINGER 25LEFT BETWEEN STATION 360-380 PER SRM 53-00-53-2R-1. REFERENCE BAM NON-ROUTINE # 2908042 FOR REPAIR.

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

Showing the 10 most recent of 116 reports.

Related aircraft

Show all 8 related aircraft
All 36 registered Boeing 737-724 aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 19, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 19, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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