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Aircraft record

N397261999 Boeing 737-724

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply77 service difficulty reports

Registration
Valid
expires Jun 30, 2030
Based in
Chicago, IL
owner city / state
Engine
CFM56 SERIES · 2200 hp
Cfm Intl.
Owners
1
since 2023
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
77
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
United Airlines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Jun 8, 2023
Expires
Jun 30, 2030
Airworthiness
Standard · Transport
Airworthiness date
Jul 9, 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
28796
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
A49F87

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. 2023 – nowUnited Airlines INCChicago, IL · current
  2. 1946 – 1948Individual ownerDetroit, MI · different airframe: Waco Upf-7 S/N 5859
  3. until 1990Individual ownerdifferent airframe: Piper Pa-44-180 S/N 447995028

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.

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 (77)

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 · power supply · faultedSep 23, 2026

    EMERGENCY LIGHT INOPERATIVE, DURING LIGHT CHECK.. (RH AFT GALLEY). REPLACED THE LIGHT IN THE AFT GALLEY. PERFORMED OPS CHECK, OPS CHECKED GOOD IAW AMM 33-51-06-960-806, & 33-51-06-610-802.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · lamp · inoperativeAug 30, 2026

    R2 EXTERIOR EMERGENCY LAMP INOPERATIVE. REPLACED THE LAMPS IN THE EXTERIOR SLIDE LIGHT IAW AMM 33-51-04. OPS CHECKED GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · slide · unraveledApr 23, 2026

    MCD SLIDE HAS EXCESS SLIDE MATERIAL EXPOSED. RESTOWED EXCESS GIRT BAR MATERIAL INTO THE VALISE REF AMM TASK 25-66-01-400-801, NO DEFECTS NOTED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Equipment and furnishings · girt bar · unraveledMar 4, 2026

    GALLEY DOOR FLAP LOOSE AT BOTTOM CHANGED ERRONEOUS INVALID TO A VALID ONE. AFTER INVESTIGATING VAGUE WRITE UP, FOUND R1 DOOR SLIDE HAS EXCESSIVE GIRT MATERIAL EXPOSED. NEEDS TO BE REPACKED. RESEATED R1 DOOR SLIDE REF AMM 25-66-01. VERIFIED CORRECT INSTALLATION AMD SECURITY OF R1 DOOR SLIDE IAW AMM…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Pneumatic · sense line · faultedFeb 28, 2026

    FLIGHT CREW REPORTED NR 2 ENGINE BLEED SPIKED TO 76 PSI DURING TAKE OFF. AFTER SEVERAL MINUTES BLEED PSI ON NR 2 ENG CAME BACK DOWN TO NORMAL BUT AS ACFT KEPT CLIMBING BLEED SPIKED AGAIN. CHECKED DOWNLINE SENSE LINE FOR LEAKS. RELACED THE LINE. LEAK CHECKED OF REPLACED LINE IAW AIPC 36-11-51-02A…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · wire · openJan 25, 2026

    EMERGENCY LIGHTS OPERATIONAL CHECK - RIGHT CENTER OVERWING EXIT EXTERIOR EMERGENCY LIGHTS DID NOT ILLUMINATE DURING CHECK.REQUESTING MEL REF 3314A FOR EXTERIOR R CTR O/W EMERGENCY EXIT LIGHT RELAMPED REF AMM 33-51-04-960-801. NO FIX. CHECKED FUSES ON POWER SUPPLY M1669, FOUND ALL FUSES GOOD.…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · slide · deployedOct 22, 2025

    POTENTIAL PARTIAL SLIDE DEPLOYMENT NEAR GIRT BAR DOOR 1R ADD PICS REMOVED AND REPLACED R-1 SLIDE ASSY PER 737 AMM 25-66-01-000-802 803. RENDER SAFE C/W AND EMAILEDPARTS USED: 29-2566-9-0006, QTY :1ROTABLE PARTS CHG:TT # 1223979 SN OFF 0727 PN OFF 29-2566-9-0006 IPC REFERENCE # MFG SN OFF NOT ON AC…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · light · inoperativeOct 20, 2025

    EMER EXIT LIGHTS COME ON WHEN THE SWITCH IS IN THE OFF POSITION. CYCLED SWITCH AT REAR FA PANEL EMERGENCY LIGHTS HAVE EXTINGUISHED. AC OK FOR SERVICE.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · battery pack · faultedSep 11, 2025

    EMERGENCY LIGHT BATTERY PACK M1670 FAILS CAPACITY CHECK.EMERGENCY LIGHTING SYSTEM FUNCTIONAL CHECK. REPLACED EMERGENCY LIGHT BATTERY PACK M1670. OP CKS GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · slide · out of positionJun 24, 2025

    SLIDE PACK DOOR 2R HAS A LARGE GAP BETWEEN COVE R AND SLIDE UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. MAC METER INITIATED FOR WITH VENDOR ID V946316 MAC RELATED WORK ORDER 000000003141204 AND PRTR CLEMENTE, MATTHEW (V946316) ACCOMPLISHED VISUAL…

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

Showing the 10 most recent of 77 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 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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