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Aircraft record

N157101998 Boeing 737-724

Registration validUnclaimedSource: FAA, updated Oct 19, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply90 service difficulty reports

Registration
Valid
expires Mar 31, 2030
Based in
Chicago, IL
owner city / state
Engine
CFM56 SERIES · 2200 hp
Cfm Intl.
Owners
1
since 2017
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
90
since 1995

Registration

FAA Aircraft Registry · Oct 19, 2026
Registered owner
United Airlines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Mar 22, 2017
Expires
Mar 31, 2030
Airworthiness
Standard · Transport
Airworthiness date
Aug 30, 1998

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
1998
Serial number
28780
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
A0E6C4

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. 2017 – nowUnited Airlines INCChicago, IL · current
  2. 1947 – 1955Individual ownerAlexandria, VA · different airframe: Waco Yks-6 S/N 4408

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 (90)

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 · light · damagedJul 12, 2026

    SEAT 15C AFT EMERGENCY LIGHT LENS DAMAGED, LIGHT OPERATES OK. REMOVED AND REPLACED SEAT 15C RED EMER LIGHT AND LENS ASSY IAW AMM 33-51-11-960-802, OPS CHECK NORMAL.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Flight controls · fseu · faultyMay 14, 2026

    FLAP ASYMMETRY WHILE EXTENDING. LEFT FLAP STAYED AT 0. ACCOMPLISHED FSEU BITE, RESULTS MAINT MSG 27-81218 INTERMITENT. CYCLED FLAPS TWICE NO FAULTS NOTED. REF FIM 27-88 TASK 805. REMOVED AND REPLACED FSEU IN REF TO AMM 27-51-01. OPS CHECK GOOD. NO EXISTING FAULTS. A/C OK FOR SERVICE. REPLACED #7…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Flight controls · transmitter · faultedMay 13, 2026

    NOTICED AT CRUISE THAT R FLAP TE IND HALF WAY BETWEEN 0 AND 1.NO LE OR TE FLAP LIGHTS ON DEBRIEF INBOUND FLT CREW, STATED FLAP HANDLE UP, AT CRUIZE THE TRAILING EDGE FLAP INDICATOR SHOW A SPLIT SEE PHOTOS. AT GATE CYCLE FLAPS WITH HYDRAULICS NEEDLES WERE MARRY. SEE FIM TASK 27-51 TASK…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Lights · elec connector · disconnectedApr 30, 2026

    EMERGENCY LIGHTS - OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - OVERHEAD EMERGENCY EXIT LIGHT IN CEILING ABOVE ROW 24/25 IS INOP FOUND PLUG DISCONNECTED,SECURED PLUG ,ACP OPS CHK AMM 33-51-02-720 ,OPS CHK GOOD

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Water and waste · drain · corrodedApr 10, 2026

    WASTE TANK DRAIN ENCLOSURE HAS CORROSION AT THE AFT ANGLE THAT ATTACHES TO THE SKIN AND UNDER THE STAINLESS STEEL RING AT THE DRAIN DUCT. INSTALLED NEW PAN ASSY AT WASTE TANK DRAIN AS PER 51-40-02-0G-0 AND DRAWING 146A7400.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · vapor barrier · crackedApr 10, 2026

    FOUND CRACK AT WING CTR SECTION REAR SPAR L/H VAPOR BARRIER @ LBL 5 STA 663.75 I/B OF RAM AIR EXIT DUCT . INSTALLED REPAIR PATCH WHERE CRACK WAS FOUND AT WING CTR SECTION REAR SPAR L/H VAPOR BARRIER @ LBL 5 STA 663. AS PER SRM-57-10-10-2R-2 PARAGRAPH 6 FIGURE 202 TABLE 215.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · vapor barrier · crackedApr 10, 2026

    FOUND CRACK R/H VAPOR BARRIER WING CTR SECTION REAR SPAR @ RBL 5 STA 663.75 I/B OF RAM AIR EXIT EXHAUST INSTALLED REPAIR PATCH WHERE CRACK WAS FOUND AT R/H VAPOR BARRIER WING CTR SECTION REAR SPAR @ RBL5 STA 663.75 I/B OF RAM AIR EXIT EXHAUST. AS PER SRM-57-10-10-2R-2 PARAGRAPH 6 FIGURE 202 TABLE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · slide · unraveledOct 10, 2025

    L2 SLIDE HAS EXCESSIVE MATERIAL BETWEEN GIRT BAR AND SLIDE HOUSING. R & R AFT L, DOOR SLIDE IAW AMM 25-66-01-400-801.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · slide · out of toleranceMay 18, 2025

    R1 SLIDE SKIRT HANGING OUT OF THE BOTTOM PERFORMED R1 DOOR SLIDE PACK REPACKING REF AMM 25-66-01. ADD 347944, U384621 C/W RII REQUIREMENTS FOR R1 DOOR SLIDE

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · girt bar · unlacedFeb 15, 2025

    RQST DOOR 1R SLIDE INSPECTION FOR EXCESS MATERIAL SHOWING PER F/ A POSITIONED GIRT Z FOLD REF AMM 25-66-01-400-803 FIG 401 . OPENED AND CLOSED UNARMED DOOR ,OK.ARMED AND DISARMED GIRT ARM,OK.

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

Showing the 10 most recent of 90 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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