# N956UA: 1993 Boeing 737-522, registration cancelled 2005-07-06 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: July 6, 2005 - Exported to: Bulgaria - Status when cancelled: Valid registration - Airframe: [Boeing 737-522](https://openairdocs.org/model/boeing-737-522) (registry code 138449F) - Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802) - Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (OpenAirDocs) - Serial number: 26704 - Year built: 1993 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: August 2, 1993 - Certificate issued: November 16, 2004 - Last registry action: November 16, 2004 - Mode S code: AD4CB4 - Owner when cancelled: [Wells Fargo Bank Northwest Na Trustee](https://openairdocs.org/faa-owner/WELLS%20FARGO%20BANK%20NORTHWEST%20NA%20TRUSTEE) - Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City) - Owner type: Corporation - Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N956UA - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=956UA - Page: https://openairdocs.org/deregistered/N956UA-2005-07-06 From the FAA registry file of November 12, 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 737-522: https://openairdocs.org/model/boeing-737-522.md ## Service difficulty reports (13) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR 2003UALA00228](https://openairdocs.org/sdr/2003UALA00228), Feb 28, 2003: FRAME. CRACKED. LEFT STATION 188 FRAME CRACKED IN RAD ON AFT SIDE JUST ABOVE FLOOR LINE. MAJOR REPAIR ACCOMPLISHED. INSTALLED ANGLE REPAIR AND EXTERNAL SKIN DOUBLER. - [SDR 2003UALA00227](https://openairdocs.org/sdr/2003UALA00227), Feb 28, 2003: SKIN. DENTED. EXTERNAL FUSELAGE HAS 3 EA DENTS BELOW AND ABOVE DOUBLER STA 384 - 390 S17L. MAJOR REPAIR ACCOMPLISHED. INSTALLED NEW DOUBLER. - [SDR 2003UALA00223](https://openairdocs.org/sdr/2003UALA00223), Feb 27, 2003: CREASE BEAM. DAMAGED. AFT ENTRY DOOR THRESHOLD CREASE BEAM OUTER CHORD ROUTED OUT BEYOND LIMITS STATION 968 STRINGER 17L. MAJOR REPAIR ACCOMPLISHED. INSTALLED STRAP REPAIR. - [SDR 2003UALA00201](https://openairdocs.org/sdr/2003UALA00201), Feb 25, 2003: CREASE BEAM. CORRODED. AFT CABIN FLOOR STRUCTURE, INNER CREASE BEAM AT STRINGER 17R BETWEEN STA. 947.5 TO 990 IS CORRODED. MAJOR REPAIR ACCOMPLISHED. INSTALLED NEW CREASEBEAM PART. - [SDR 2000UALA00751](https://openairdocs.org/sdr/2000UALA00751), Sep 28, 2000: BULKHEAD. CRACKED. CRACK FOUND ON THE BODY STATION 178 BULKHEAD WEB. SUPPLEMENTAL DATA UPDATE CRACKS REPAIRED PER BOEING SRM 53-10-08. - [SDR 2000UALA00474](https://openairdocs.org/sdr/2000UALA00474), Aug 10, 2000: CONTROL PANEL. FAILED. MOMENTARY BURNING SMELL IN THE COCKPIT. *S/D* REPLACED WINDOW HEAT CONTROL PANEL. - [SDR 2000UALA00446](https://openairdocs.org/sdr/2000UALA00446), Jul 24, 2000: LANDING GEAR. MALFUNCTIONED. UNABLE TO RETRACT LANDING GEAR. *S/D* ACCOMPLISHED GEAR SWINGS AND CHECKED AIR GROUND SENSOR GAPS. FOUND ALL TO CHECK OUT NORMAL. - [SDR 99UAL900369](https://openairdocs.org/sdr/99UAL900369), Jul 9, 1999: TRANS RECTIFIER. FAILED. A STRONG ELECTRICAL ODOR IN THE CABIN WAS REPORTED BY A FLIGHT ATTENDANT. *S/D* TRANSFORMER RECTIFIER POWER SUPPLY FAILED. REPLACED TRANSFORMER RECTIFIER IN NR - [SDR 99UAL900232](https://openairdocs.org/sdr/99UAL900232), Apr 25, 1999: ADC. FAILED. ALL ALTIMETERS AND AIRSPEED INDICATORS DISAGREE IN FLIGHT. *S/D* FAULTY AIR DATA COMPUTER. THE NR 2 AIR DATA COMPUTER WAS REPLACED, OPS CHECK OK. - [SDR 99UAL900158](https://openairdocs.org/sdr/99UAL900158), Mar 14, 1999: VSV. OUT OF ADJUST. LEFT ENGINE EXPERIENCED POWER SURGES. *S/D* ACCOMPLISHED ENGINE BORESCOPE AND TROUBLESHOOTING FOUND VARIABLE STATOR VANES (VSV) OUT OF RIG, NO LIMITING DEFECTS - [SDR 97UAL900200](https://openairdocs.org/sdr/97UAL900200), Mar 10, 1997: CONTROL PANEL. MALFUNCTIONED. ON DEPARTURE, LOST ENTIRE MODE CONTROL PANEL. NO AUTOTHROTTLE AND NO CONTROL OF CAPTAIN'S NAV INSTRUMENTS. RETAINED CONTROL OF FIRST OFFICERS NAV INSTRUMENTS AN - [SDR 96UAL900282](https://openairdocs.org/sdr/96UAL900282), Apr 24, 1996: BULB. FAILED. COCKPIT EMERGENCY LIGHT INOPERABLE. RELAMPED. CHECKS O.K. - [SDR 95UAL900113](https://openairdocs.org/sdr/95UAL900113), Aug 30, 1995: RESERVOIRS. DEPRESSURIZED. DIVERTED TO SLC UNDER AMBER ALERT, DUE TO TWO INOP HYDRAULIC PUMPS. BOTH HYDRAULIC RESERVOIRS WERE DEPRESSURIZED FOR MAINTENANCE WORK AND WERE INADVERTENTLY LEF ## NTSB investigations (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB DEN04LA019](https://openairdocs.org/ntsb/DEN04LA019), Nov 1, 2003: Boeing 737-500 (N956UA), Denver, CO, no damage. Probable cause: the in-flight encounter with heavy to moderate turbulence. - [NTSB LAX97IA243](https://openairdocs.org/ntsb/LAX97IA243), Jul 15, 1997: Boeing 737-522 (N956UA), Ontario, CA, incident, no damage. Probable cause: a laser light source of undetermined origin directed toward the cockpit window of an aircraft in-flight by a person or persons unknown. ## FAA accident and incident reports (3) 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. - [Accident 20031101027999A](https://openairdocs.org/incident/20031101027999A), Nov 1, 2003: Boeing 737522 (N956UA), Denver, CO. (-23) United airlines flight #1232 inbound from boise to Denver had reports from prior aircraft in area of turbulence ahead at or about FL 240. Captain… - [Incident 20030128007929I](https://openairdocs.org/incident/20030128007929I), Jan 28, 2003: Boeing 737522 (N956UA), Rochester, NY. (-23) On January 28, 2003, united airlines flt. 1535, N956UA, during the initial takeoff roll, less than 20 knots of ground speed, at 40% N1, a ground vehicle… - [Incident 19970714045209I](https://openairdocs.org/incident/19970714045209I), Jul 14, 1997: Boeing 737522 (N956UA), Ontario, CA. On July 14, 1997, at 2034 hours pacific daylight time, the flight crew on united airlines flight 2327, reported an exposure to a laser beam during an approach… --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.