# N997UA: 1981 Boeing 737-291, registration cancelled 2003-08-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 15, 2003
- Exported to: Nigeria
- Status when cancelled: Triennial form not returned
- Airframe: [Boeing 737-291](https://openairdocs.org/model/boeing-737-291) (registry code 138448W)
- Engine: [Pratt & Whitney JT8D-17 series](https://openairdocs.org/engine/pratt-whitney-jt8d-17-series) (registry code 52049)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE), [TCDS E2EA](https://openairdocs.org/tcds/E2EA) (OpenAirDocs)
- Serial number: 22457
- Year built: 1981
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, transport
- Airworthiness date: April 22, 1981
- Certificate issued: November 15, 1995
- Last registry action: January 15, 2002
- Mode S code: ADEE67
- Owner when cancelled: [United Air Lines Inc](https://openairdocs.org/faa-owner/UNITED%20AIR%20LINES%20INC)
- Location: [Arlington Heights, IL](https://openairdocs.org/faa-place/IL/Arlington%20Heights)
- Owner type: Corporation
- Owner's area on the map: 42.0645° N, 87.9867° W: Placed by OpenAirDocs at the center of ZIP code 60005, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N997UA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=997UA
- Page: https://openairdocs.org/deregistered/N997UA-2003-08-15

From the FAA registry file of November 7, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Boeing 737-291: https://openairdocs.org/model/boeing-737-291.md

## Service difficulty reports (14)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2001UALA01984](https://openairdocs.org/sdr/2001UALA01984), Sep 7, 2001: SKIN. DAMAGED. AIRCRAFT HAS 32 INCH CREASE IN RIGHT SIDE OF FUSELAGE WITH CENTER 18 INCH PUNCTURE BETWEEN STATIONS 907R-947R CROSSING STRINGERS 22R AND 23R. MAJOR REPAIR ACCOM
- [SDR 2001UALA01200](https://openairdocs.org/sdr/2001UALA01200), Jun 26, 2001: WARNING LIGHT. ILLUMINATED. DURING CLIMBOUT, NR 2 THRUST REVERSER ISOLATION VALVE LIGHT ILLUMINATED.
- [SDR 2001UALA01134](https://openairdocs.org/sdr/2001UALA01134), Jun 23, 2001: SKIN. CRACKED. FUSELAGE SKIN CRACKED BETWEEN BS 520 AND BS 540. ACCOMPLISHED DOUBLER REPAIR. MAJOR REPAIR ACCOMPLISHED.
- [SDR 2001UALA01133](https://openairdocs.org/sdr/2001UALA01133), Jun 23, 2001: FRAME. CRACKED. FRAME CRACKED AT BS 727, STR 17R. REMOVED DAMAGE. INSTALLED DOUBLER REPAIR. MAJOR REPAIR ACCOMPLISHED.
- [SDR 2001UALA01132](https://openairdocs.org/sdr/2001UALA01132), Jun 23, 2001: STIFFENER. CRACKED. CABIN FLOOR UPPER STIFFENER CRACKED AFT SIDE AT BS 727, RBL 10. REPLACED STIFFENER. MAJOR REPAIR ACCOMPLISHED.
- [SDR 2001UALA01131](https://openairdocs.org/sdr/2001UALA01131), Jun 23, 2001: SHEAR TIE. CRACKED. SHEAR TIE CRACKED AT BS 1040, BETWEEN STR 2L AND STR 3L. REPLACED SHEAR TIE. MAJOR REPAIR ACCOMPLISHED.
- [SDR 2001UALA01130](https://openairdocs.org/sdr/2001UALA01130), Jun 23, 2001: FLOORBEAM. CRACKED. FLOORBEAM CRACKED AT BS 660. ACCOMPLISHED STRAP AND ANGLE REPAIR. MAJOR REPAIR ACCOMPLISHED.
- [SDR 2000UALA00616](https://openairdocs.org/sdr/2000UALA00616), Oct 25, 2000: INDICATOR. MALFUNCTIONED. AFTER TAKEOFF A-SYSTEM PRESSURE DROPPED TO 800 PSI AND QUANTITY TO 2.8 GAL. NO A-PUMP LOW PRESSURE LIGHTS OR FLIGHT CONTROL LIGHTS. ON APPROACH WHEN FLAPS EXTEN
- [SDR 97UAL900454](https://openairdocs.org/sdr/97UAL900454), Jun 15, 1997: ENGINE. FOD. SUSPECT COMPRESSOR STALL ON NR 1 ENGINE. *S/D* UPON RETURN TO FIELD AT THE GATE, THE REMAINS OF A PLASTIC BAG WERE FOUND WRAPPED AROUND INLET GUIDE VANES.
- [SDR 97UAL900165](https://openairdocs.org/sdr/97UAL900165), Mar 2, 1997: GEAR HANDLE. MALFUNCTIONED. WHEN PLACING GEAR HANDLE FROM UP TO OFF, BOTH MAIN GEAR RED AND GREEN LIGHTS CAME ON AND NOTICABLE AIR DRAG FELT. HYDRAULICALLY AND MANUALLY EXTENDED LANDING GE
- [SDR 97UAL900142](https://openairdocs.org/sdr/97UAL900142), Feb 17, 1997: CONNECTOR. LOOSE. EEL LIGHTS OVER MLG VIEWER INOPERABLE. SECURED LIGHT STRIP CONNECTOR, OPS CHECK GOOD.
- [SDR 97UAL900140](https://openairdocs.org/sdr/97UAL900140), Feb 17, 1997: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT ABOVE DOOR 2 LEFT INOP. REPLACED LIGHT ASSEMBLY, OPS CHECK GOOD.
- [SDR 96UAL900822](https://openairdocs.org/sdr/96UAL900822), Oct 18, 1996: TURBINE WHEEL. DISINTEGRATED. APU MUFFLER AND EXHAUST PIPE REQUIRE REPLACEMENT DUE TO DAMAGE DURING APU FAILURE. *S/D* THE TURBINE WHEEL FAILED CAUSING UNCONTAINED SEPARATION. THE CAUSE IS B
- [SDR 96UAL900089](https://openairdocs.org/sdr/96UAL900089), Feb 5, 1996: CONTROLLER. FAILED. CABIN PRESSURE CONTROL FAILED AT FL 350, STANDBY HELD FOR 2 MINUTES THEN FAILED. MANUAL AC AND DC FAILED TO CONTROL AT ALL. SUPPLEMENTAL DATA UPDATE: THE CABIN 

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19911219060809I](https://openairdocs.org/incident/19911219060809I), Dec 19, 1991: Boeing 737291 (N997UA), Houston, TX. NR2 engine overheat light after departure. Returned. Found cracked anti-ice duct. Replaced bleed air valve.

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