Skip to content
KnownTail
Aircraft record

N167321999 Boeing 737-724

Registration validUnclaimedSource: FAA, updated Oct 19, 2026

Safety record in brief:1 NTSB accident (substantial damage, Jan 2005)21 ADs may apply90 service difficulty reports

Registration
Valid
expires Jan 31, 2028
Based in
Chicago, IL
owner city / state
Owners
1
since 1999
NTSB events
1
substantial, 2005
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
Aug 25, 1999
Expires
Jan 31, 2028
Airworthiness
Standard · Transport
Airworthiness date
Aug 22, 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
28948
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
A10E8B

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

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 (1)

Accident · substantial damage

Jan 8, 2005 · Gunnison, CO

the snowplow driver's failure to see the airplane during plowing operations. Factors contributing to the accident were the snowplow driver's excessive speed and the snow.

Damage
Substantial
Injuries
Minor
Report
DEN05LA048

From NTSB records; matched by serial number.Read NTSB report (search CAROL for DEN05LA048)

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.

  • Air conditioning and pressurization · controller · faultyOct 8, 2026

    UNCONTROLLABLE FLT DECK TEMP. ONLY HOT. ONLY COOLED W/LT PACK OF F. DEBRIEF FROM CA, FLIGHT DECK TEMPERATURE HOT WITH LT & RT PACKS ON, LT AIR MIX VALVE GAUGE READING RIGHT ABOVE HALF ON HOT SIDE, PERFORMED AUTO & MANUAL CONTROL INPUTS WITH NO CHANGE IN TEMP, PLACED LT PACK SWITCH TO OFF, FLIGHT…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · damagedMay 1, 2026

    DENT FROM BIRD STRIKE FWD OF LEFT AOA SKIN IAW SRM 53-10-01-1, 2024 T-3 .071 CHEM MILLED TO .040 IN POCKETS REF FIG 5. BLENDED DAMAGED AREA AND REMOVED PAINT REF SRM 53-00-01-1A-1 FIG103. NEEDS NDT PART 6 SRM 51-00-00 PROCEDURE 23. ACCOMPLISHED HFEC IAW 737 NDTM PART 6-51-00-00 PROC. 23. NO…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Flight controls · fseu · faultedFeb 28, 2026

    LE FLAP TRANSIT ILLUMINATED AT 230 KNOTS. WENT OUT 10 MINUTES LATER AT 20 0. SLAT 1. PERFORMED FSEU BITE, NO FAULTS IN LAST 3 LEGS, IAW MEL 27025, PULLED & COLLARED STALL WARN ASYM MODE C/B ON P18-2 E7 & REMOVED BULBS FROM LE FLAPS IN TRANSIT LIGHT ON P2 PANEL, PLACED NR 1 SLAT INDICATION ON MEL.…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Doors · control rod · out of adjustDec 21, 2025

    DOOR WARNING ANNUNCIATOR IS ON AFT SERVICE & AFT ENTRY DOOR LIGHT ILLUMINATED INFLT. HANDLE CONFIGURED UNSTOWED. NORMAL LANDING. PERFORMED PRELIMINARY DOOR INDICATION CHECK DUE TO HORIZONTAL CONTROL ROD ADJUSTMENT. CLEARED TO INSTALL LINER AND SLIDE ASSY. PERFORMED R2 GALLEY SERVICE DOOR SOFT…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · skin · corrodedDec 13, 2025

    RIGHT WING LOWER OUTER SURFACE I/B OF WBL 658.17 HAS PEELING PAINT. ACCOMPLISHED RIGHT WING OUTER LOWER SURFACE CORROSION DISCREPANCY COMPLIANCE WITH THE REQUIREMENTS OF ESR-WI 40-13356 AND ECRA 5720-03595 WERE ACHIEVED. REPAIRED RIGHT WING O/B LOWER INSPAR SKIN PANEL AS PER EC/RA 5720-03595, AND…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · window frame · crackedDec 5, 2025

    CRACK FOUND ON R3 WINDOW FRAME HOLE NR 3 AT 3 O'CLOCK. REPAIRED THE R3 WINDOW FRAME E-F POST IAW EC/RA 5310-08738 ALONG WITH THE ADDITIONAL REPAIR INSTRUCTIONS AND DEVIATIONS PROVIDED BY AAR-MIA ESR-WI 2023936-6-13099.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Nacelles and pylons · skin · crackedDec 3, 2025

    NR 1 ENGINE OTBD FAN COWL EXTERNAL SKIN BELOW IDG DOOR 423AL HAS A CRACK. REPAIRED THE NR 1 ENGINE FAN COWL SKIN IAW ESR-WI 2023936-27-13210 AND EC/RA 7111-02830.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · floorbeam · corrodedNov 25, 2025

    AFT WET AREA FLOOR STRUCTURE WITH CORROSION AT FLOORBEAM UPPER SURFACE STA947.5 LBL50. REPAIRED FLOORBEAM IAW SRM 53-70-51-2R-5, ESR-WI 14-13120 REV IR AND EC/RA 5370-01206.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · skin · dentedNov 23, 2025

    ACCOMPLISH FWD CARGO DOOR SKIN REPLACEMENT. REMOVED AND REPLACED FWD CARGO DOOR EXTERNAL SKIN IAW SRM 51-40-02-0G-0, AND DWG 143A6110, SHEET 18.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · skin · dentedNov 23, 2025

    ACCOMPLISH AFT CARGO DOOR SKIN REPLACEMENT. REMOVED AND REPLACED AFT CARGO DOOR EXTERNAL SKIN AS PER SRM 51-40-02-0G-0 AND DWG 146A6110 SHEET 26.

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

Showing the 10 most recent of 90 reports.

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

Request owner name removalReport an error in this record