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Aircraft record

N7251U1977 Boeing 727-222

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Jan 6, 2003.

Safety record in brief:No NTSB accidents or incidents since 198264 ADs may apply17 service difficulty reports

Registration
Deregistered
Last based in
Chicago, IL
owner city / state
Engine
JT8D-9 SER · 14,500 lb thrust
P & W
Owners
1
since 1979
NTSB events
None
since 1982
ADs may apply
64
confirm with A&P
Service reports
17
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Last registered owner
United Air Lines INC
Owner type
Corporation
City, state
Chicago, IL
Certificate issued
Feb 27, 1979
Canceled
Jan 6, 2003
Airworthiness
Standard · Transport
Airworthiness date
Oct 21, 1977

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
727-222
Year
1977
Serial number
21398
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
134
Engines
3
Max takeoff weight
20,000 and over lb
Mode S code
A9B8AD

Engine

Make and model
P & W Jt8d-9 Ser
Type
Turbo-jet
Power
14,500 lb thrust

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

Ownership history

Ownership history from FAA records
  1. 1979 – 2003United Air Lines INCChicago, IL

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 (64)

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
2023-12-15NavigationJun 21, 2023Airframe (727-222)
2022-25-01WingsFeb 16, 2023Airframe (727-222)
2021-03-09WingsMar 31, 2021Airframe (727-222)
2019-23-04FuelFeb 4, 2020Airframe (727-222)Only with: Equipped with Boeing body-mounted auxiliary fuel tanks.
2019-24-18NavigationFeb 3, 2020Airframe (727-222)Serial numbers per Boeing Alert Service Bulletins 727-34A0247 Rev 1, 757-34A0611 Rev 1, and 767-34A0828. Only with: 727 airplanes with variable numbers QB065, QD191, QD192, QD402, QD403, QD407, and QD410 are excluded.
Show all 64 ADs
ADSubjectEffectiveApplies to
2018-25-15WingsJan 22, 2019Airframe (727-222)
2017-19-02DoorsOct 19, 2017Airframe (727-222)Only with: Equipped with a main cargo door (MCD).
2014-04-09WingsMay 2, 2014Airframe (727-222)
2013-24-15FuelJan 8, 2014Airframe (727-222)
2013-21-07StabilizersDec 5, 2013Airframe (727-222)Serial numbers per Boeing Service Bulletin 55-46, dated April 8, 1970 (Group III and Group IV). Only with: Airplanes identified as Group III and Group IV in Boeing Service Bulletin 55-46.
2013-22-03FuelDec 5, 2013Airframe (727-222)
2013-19-08Stall Warning SystemNov 6, 2013Airframe (727-222)Serial numbers per Boeing Special Attention Service Bulletins 727-34-0245, 737-34-2102, and 747-34-2925
2013-16-17WingsSep 27, 2013Airframe (727-222)
2013-15-11StabilizersSep 20, 2013Airframe (727-222)
2013-15-15FuselageSep 20, 2013Airframe (727-222)Serial numbers per Boeing Special Attention Service Bulletin 727-53-0234, dated January 17, 2013
2013-14-02WingsAug 26, 2013Airframe (727-222)
2013-14-03StabilizersAug 26, 2013Airframe (727-222)
2011-12-05The Boeing Company Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F Series…Jul 15, 2011Airframe (727-222)
2011-01-05The Boeing Company Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F Series…Feb 14, 2011Airframe (727-222)
2008-04-10 R1The Boeing Company Model 727 AirplanesDec 30, 2009Airframe (727-222)
2009-20-08Boeing Model 727 AirplanesNov 5, 2009Airframe (727-222)
2009-20-03Boeing Model 727 AirplanesNov 3, 2009Airframe (727-222)
2008-22-12Boeing Model 727 AirplanesDec 17, 2008Airframe (727-222)
2008-11-09Boeing Model 727 AirplanesJul 3, 2008Airframe (727-222)
2008-02-13Boeing Model 727 AirplanesFeb 28, 2008Airframe (727-222)
2007-21-04Boeing Model 727 AirplanesNov 16, 2007Airframe (727-222)
2007-12-14Boeing Model 727 AirplanesJul 16, 2007Airframe (727-222)
2006-13-16Boeing Model 727 AirplanesAug 1, 2006Airframe (727-222)Serial numbers per Boeing Special Attention Service Bulletin 727-27-0234, dated November 10, 2005
2006-09-03Boeing Model 727, 727C, 727-100, and 727-100C Series AirplanesMay 31, 2006Airframe (727-222)
2005-23-07Boeing Model 727 AirplanesDec 13, 2005Airframe (727-222)
2005-20-33Boeing Model 727, 727C, 727-100, and 727-100C Series AirplanesNov 16, 2005Airframe (727-222)Certain serial numbers: 1–694. Only with: Line numbers 1 through 694 inclusive.
2005-20-13Boeing Model 727 AirplanesNov 9, 2005Airframe (727-222)
2005-19-24Boeing Model 727 Series AirplanesOct 27, 2005Airframe (727-222)
2005-16-07Boeing Model 727 AirplanesSep 13, 2005Airframe (727-222)
2005-14-07Boeing Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F Series AirplanesAug 15, 2005Airframe (727-222)Serial numbers per Boeing Alert Service Bulletin 727-57A0135, Revision 3, dated June 27, 2002
2005-13-40Boeing Model 727 Airplanes, Equipped With an Auxiliary Fuel Tank Having a Fuel Pump…Aug 4, 2005Airframe (727-222)Only with: Equipped with an auxiliary fuel tank having a fuel pump installed.
2004-09-36Boeing Model 727 Series AirplanesJun 15, 2004Airframe (727-222)
2004-03-30Boeing Model 727, 727C, 727-100, and 727-100C Series AirplanesMar 24, 2004Airframe (727-222)Serial numbers per Boeing Alert Service Bulletin 727-53A0225, dated September 11, 2003
2004-03-31Boeing Model 727, 727-100C, 727-200F, and 727C Series AirplanesMar 24, 2004Airframe (727-222)Serial numbers per Boeing Alert Service Bulletin 727-53A0226, dated September 11, 2003
2003-03-15 R1Various Boeing and McDonnell Douglas Transport Category AirplanesDec 22, 2003Airframe (727-222)
2003-11-03Boeing Model 727, 737-100, 737-200, and 737-200C Series AirplanesJul 3, 2003Airframe (727-222)Certain serial numbers: 727 L/N 1–L/N 1832; 737-100 L/N 1–L/N 1033; 737-200 L/N 1–L/N 1033; 737-200C L/N 1–L/N 1033. Only with: Applicability limited by line numbers rather than serial numbers.
2003-03-15Various Boeing and McDonnell Douglas Transport Category AirplanesMar 7, 2003Airframe (727-222)
2002-24-05Boeing Model 727 Series AirplanesDec 18, 2002Airframe (727-222)Certain serial numbers: 1–1832
2002-17-05Boeing Model 727 Series AirplanesSep 16, 2002Airframe (727-222)
2002-16-19Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Sep 19, 2002Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC SA1767SO or SA1768SO.
2002-16-20Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Sep 19, 2002Airframe (727-222)Only with: Airplanes converted from passenger to cargo (freighter) configuration in accordance with STC SA1368SO, SA1797SO, or SA1798SO.
2002-16-21Boeing Model 727 Series Airplanes Modified in Accordance with Supplemental Type…Sep 19, 2002Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC ST00015AT.
2002-16-22Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Sep 19, 2002Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC SA1444SO, SA1509SO, SA1543SO, or SA1896SO.
2002-12-13Boeing Model 727 Series AirplanesJul 31, 2002Airframe (727-222)
2001-22-12Boeing Model 727 Series AirplanesNov 15, 2001Airframe (727-222)
2001-20-09Boeing Model 727 Series AirplanesNov 15, 2001Airframe (727-222)
2000-14-07Boeing Model 727 Series AirplanesAug 17, 2000Airframe (727-222)Certain serial numbers: 727 858–864; 727 867–869; 727 872–883; 727 885–1832. Only with: Limited by line numbers rather than serial numbers.
90-15-12 R1Boeing Model 727 Series Airplanes Modified in Accordance with Valsan Supplemental Type…Aug 15, 2000Airframe (727-222)Only with: Modified by installation of Pratt and Whitney JT8D-217C or -219 engines in accordance with Valsan STC SA4363NM.
2000-02-19Boeing Model 727 Series AirplanesMar 9, 2000Airframe (727-222)Serial numbers per Boeing Service Bulletin 727-57-0177, dated December 22, 1988
99-20-10Boeing Model 727 Series AirplanesNov 8, 1999Airframe (727-222)Certain serial numbers: 124; 126; 130; 146; 221; 287; …. Only with: Applies to airplanes with the listed line numbers (not serial numbers).
99-04-22Boeing Model 727, 727-100, 727-200, 727C, 727-100C, and 727-200F Series AirplanesMar 4, 1999Airframe (727-222)
98-26-18Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Feb 16, 1999Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC SA1767SO, SA1768SO, or SA7447SW.
98-26-19Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Feb 16, 1999Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC SA1368SO, SA1797SO, or SA1798SO.
98-26-20Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Feb 16, 1999Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC ST00015AT.
98-26-21Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type…Feb 16, 1999Airframe (727-222)Only with: Converted from passenger to cargo-carrying (freighter) configuration in accordance with STC SA1444SO, SA1509SO, SA1543SO, SA1896SO, SA1740SO, or SA1667SO.
98-11-03 R1Boeing Model 727 Series AirplanesJun 23, 1998Airframe (727-222)
98-23-51Boeing Model 727 Series AirplanesDec 14, 1998Airframe (727-222)Certain serial numbers: 727 1–849. Only with: Line positions 1 through 849 inclusive that have been converted from passenger to cargo (freighter) or passenger-and-cargo (combi) configuration.
98-18-20Boeing Model 727 and Model 737 Series Airplanes Equipped with J.C. Carter Company Fuel…Oct 21, 1998Airframe (727-222)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).
98-11-03Boeing Model 727 Series AirplanesJun 23, 1998Airframe (727-222)

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

Service Difficulty Reports (17)

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.

  • Electrical power · harness · burnedFeb 16, 2001

    STRONG BURNING ODOR IN E&E COMPARTMENT. *S/D* APU FEEDER HARNESS BURNED AT FIREWALL CONNECTOR. REPLACED APU HARNESS WIRES PER GN-MM 2-0-15-1.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Hydraulic power · line · leakingOct 25, 2000

    A-SYSTEM HYDRAULIC FLUID WENT FROM 3.5 TO 1.0 GAL. THE SYSTEM WAS ISOLATED, A-PUMPS OFF. *S/D* FOUND LINE TO A SYSTEM PRESSURE TRANSMITTER LEAKING. MANUFACTURED AND INSTALLED REPLACEMENT HYDRAULIC LINE. PRESSURE CHECK OK.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · seat · looseFeb 9, 2000

    SEAT ROW 16ABC INBOARD FOOT LOOSE. *S/D* SHEARED RIVETS ON ANCHOR NUT. REF:IPC 25-00-XX-060K ITEM 16-17) HAVE SHEARED OFF DUE TO INCORRECT INSTALLATION OF SEAT ASSEMBLY. BRACKET (PCN 020-1834) WAS REPLACED BY LINE AMT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Equipment and furnishings · seat · looseJan 31, 2000

    SEAT 12 ABC APPEARED TO BE LOOSE IN TRACK. *S/D* FINDINGS INDICATE FORWARD ATTACH POINT EXTENDED TOO FAR PUTTING PRESSURE ON MONEL RIVETS RATHER THAN ON ATTACH BRACKET. ISOLATED INCIDENT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · connector · corrodedOct 24, 1999

    AFT COFFEEMAKER CAUSED SMOKE, SMOKE STOPPED WHEN POT TURNED OFF. *S/D* SMOKE CAUSED BY CORRODED AND BURNED CONNECTOR ON AIRCRAFT SIDE. REPLACED CONNECTOR. THIS WAS AN ISOLATED INCIDENT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Flight controls · actuator · failedOct 21, 1999

    SLATS NR 2, 3, 6 AND 7 WOULD NOT RETRACT WHEN FLAP 2 DEGREES SELECTED FROM 5 DEGREES. NR 4 SLAT TRANSITION LIGHT DID NOT ILLUMINATE DURING RETRACTION. RETURNED TO ORD. *S/D* REPLACED LEADING EDGE POSITION CONTROL UNIT, OPERATIONAL CHECK NORMAL.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Landing gear · sequence valve · leakingAug 7, 1999

    ON GEAR EXTENSION AIRCRAFT LOST HYDRAULIC SYSTEM A. BOTH PUMPS RAN TO ZERO HYDRAULIC FLUID QUANTITY. *S/D* REPLACED NR 1 AND NR 2 ENGINE DRIVEN HYDRAULIC PUMPS AND REPLACED LT MLG LOCK OPERATED SEQUENCE VLV PER MAINTENANCE MANUAL. PERFORMED NORMAL RETRACTION AND MANUAL EXTENSION TESTS, NO…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuel · relay · failedJul 22, 1999

    AFTER TAKEOFF, ALL BOOST PUMPS FOR NR 2 FUEL TANK FAILED. CIRCUIT BREAKERS POPPED. AFT FLIGHT REPORTED FUEL FUMES. RETURNED TO DEN. *S/D* MOST LIKELY CAUSE MAY HAVE BEEN A FAULTY APU BUS CIRCUIT BREAKER. PUMPS WERE TRIPPING THEIR BREAKERS WHEN USING APU POWER. PUMPS REPLACED, SPLICES REPLACED AND…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Ice and rain protection · seal · wornJul 7, 1999

    RETURNED TO SFO DUE TO STRUT OVERHEAT LIGHT CAME ON AFTER TAKEOFF. *S/D* LEAKING SEAL ON UPPER SIDE OF ANTI-ICE VALVE. REPLACED SEAL.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Exhaust · switch · failedJan 3, 1999

    TAKEOFF ABORTED AT APPROXIMATELY 90 KNOTS DUE TO NR 2 ENGINE REVERSER LIGHT ILLUMINATED DURING TAKEOFF ROLL. *S/D* BAD STOW SWITCH. REPLACED STOW SWITCH.

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

Showing the 10 most recent of 17 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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