N956UA
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| UNITED AIRLINES, INC. (CALA) | Operator | on 2003-11-01 | Operator named in NTSB report |
Accident & incident history
Operated by UNITED AIR LINES INC (per NTSB report)
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
13 reports on file, 1995-08-30 – 2003-02-28.
Part: SKIN — DENTED (FUSELAGE) · airframe 27,893 hrs · 17,797 cycles
EXTERNAL FUSELAGE HAS 3 EA DENTS BELOW AND ABOVE DOUBLER STA 384 - 390 S17L. MAJOR REPAIR ACCOMPLISHED. INSTALLED NEW DOUBLER.
Part: FRAME — CRACKED (FUSELAGE) · airframe 27,893 hrs · 17,797 cycles
LEFT STATION 188 FRAME CRACKED IN RAD ON AFT SIDE JUST ABOVE FLOOR LINE. MAJOR REPAIR ACCOMPLISHED. INSTALLED ANGLE REPAIR AND EXTERNAL SKIN DOUBLER.
Part: CREASE BEAM — DAMAGED (FUSELAGE) · airframe 27,893 hrs · 17,797 cycles
AFT ENTRY DOOR THRESHOLD CREASE BEAM OUTER CHORD ROUTED OUT BEYOND LIMITS STATION 968 STRINGER 17L. MAJOR REPAIR ACCOMPLISHED. INSTALLED STRAP REPAIR.
Part: CREASE BEAM — CORRODED (FUSELAGE) · airframe 27,893 hrs · 17,797 cycles
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.
Earlier reports · 1995–2000 · 9 reports
2000
Part: BULKHEAD — CRACKED (FUSELAGE) · airframe 21,310 hrs · 13,646 cycles
CRACK FOUND ON THE BODY STATION 178 BULKHEAD WEB. SUPPLEMENTAL DATA UPDATE CRACKS REPAIRED PER BOEING SRM 53-10-08.
Part: CONTROL PANEL — FAILED (COCKPIT WINDOW) · airframe 21,224 hrs · 13,591 cycles
MOMENTARY BURNING SMELL IN THE COCKPIT. *S/D* REPLACED WINDOW HEAT CONTROL PANEL.
Part: LANDING GEAR — MALFUNCTIONED (MAINS) · airframe 21,081 hrs · 13,505 cycles
UNABLE TO RETRACT LANDING GEAR. *S/D* ACCOMPLISHED GEAR SWINGS AND CHECKED AIR GROUND SENSOR GAPS. FOUND ALL TO CHECK OUT NORMAL.
1999
Part: TRANS RECTIFIER — FAILED (E & E COMPT)
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 2 POSITION. ALSO, R4 RELAY WAS REPLACED DUE TO ZERO VOLTAGE BETWEEN B1 AND B2. AIRCRAFT CHECKS GOOD.
Part: ADC — FAILED (NR 2)
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.
Part: VSV — OUT OF ADJUST (LT ENGINE)
LEFT ENGINE EXPERIENCED POWER SURGES. *S/D* ACCOMPLISHED ENGINE BORESCOPE AND TROUBLESHOOTING FOUND VARIABLE STATOR VANES (VSV) OUT OF RIG, NO LIMITING DEFECTS NOTED IN GAS PATH AND VSV'S WERE PROPERLY RIGGED PER MAINTENANCE MANUAL. OPS CHECK OK.
1997
Part: CONTROL PANEL — MALFUNCTIONED (AUTOFLIGHT SYST)
ON DEPARTURE, LOST ENTIRE MODE CONTROL PANEL. NO AUTOTHROTTLE AND NO CONTROL OF CAPTAIN'S NAV INSTRUMENTS. RETAINED CONTROL OF FIRST OFFICERS NAV INSTRUMENTS AND STANDBY INSTRUMENTS. *S/D* REPLACED MODE CONTROL PANEL 4051601-936. MODE CONTROL PANEL WAS TESTED BY THE SHOP AND RETURNED TO STOCK. NO DEFECTS WERE FOUND.
1996
Part: BULB — FAILED (COCKPIT)
COCKPIT EMERGENCY LIGHT INOPERABLE. RELAMPED. CHECKS O.K.
1995
Part: RESERVOIRS — DEPRESSURIZED (LT/RT)
DIVERTED TO SLC UNDER AMBER ALERT, DUE TO TWO INOP HYDRAULIC PUMPS. BOTH HYDRAULIC RESERVOIRS WERE DEPRESSURIZED FOR MAINTENANCE WORK AND WERE INADVERTENTLY LEFT DEPRESSURIZED. REMOVED DEPRESSURIZATION TOOLS AND SYSTEM OPS CHECKS OK.