N7449U
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| UNITED AIRLINES, INC. (CALA) | Operator | on 1991-03-23 | Operator named in NTSB report |
Accident & incident history
Operated by UNITED AIRLINES (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.
21 reports on file, 1995-10-27 – 2001-10-10.
Part: STRUCTURE — DAMAGED (FUSELAGE) · airframe 62,060 hrs · 36,050 cycles
FUSELAGE DAMAGE FOUND DURING MAINTENANCE CHECK. MAJOR REPAIR ACCOMPLISHED. REPAIRED DAMAGE. OPERATIONS CHECK NORMAL.
Part: CONNECTOR — INTERMITTENT (GROUND PROX SYS) · airframe 61,566 hrs · 35,766 cycles
RADIO ALTIMETER FAULT WITH ASSOCIATED GPWS FAIL. INTERMITTENT CONNECTION CAUSED THE FAULT. REMOVED AND REINSTALLED ANT RAD ALT TX ANTENNAS. SECURED SOFT MATE CONNECTOR RAD ALT. OPERATIONS CHECK NORMAL.
Part: SKIN — CORRODED (FUSELAGE) · airframe 61,566 hrs · 35,766 cycles
AFT PIT BILGE AREA CORROSION IN SKIN LT SIDE, BETWEEN STR 28L AND 29L, STA 970-990.
Part: SHEAR TIE — CORRODED (FUSELAGE) · airframe 61,566 hrs · 35,766 cycles
AFT PIT BILGE, CORROSION IN SHEAR TIE AFT SIDE OF FRAME 1130 BETWEEN STR 27L AND 28L. REPAIRED SHEAR TIE PER MM 53-10-29. MAJOR REPAIR ACCOMPLISHED.
Part: SHEAR TIE — CORRODED (FUSELAGE) · airframe 61,566 hrs · 35,766 cycles
AFT PIT BILGE, CORROSION IN SHEAR TIE FORWARD SIDE BETWEEN STR 28L AND 29L AT FRAME STA 1010. REPAIRED SHEAR TIE PER MM 53-10-29. MAJOR REPAIR ACCOMPLISHED.
Earlier reports · 1995–2000 · 16 reports
2000
Part: STOP — OUT OF ADJ (PAX DOOR) · airframe 59,742 hrs · 34,673 cycles
FORWARD LEFT HAND ENTRY DOOR OPEN LIGHT AND HANDLE POPPED UP AFTER ROLL OUT. SUPPLEMENTAL DATA UPDATE DOOR STOPS NEEDED ADJUSTMENT. ACCOMPLISHED PER MM 52-10-20 AND OP CHECKS OK.
Part: SWITCH — DIRTY (TAIL SKID) · airframe 58,330 hrs · 33,810 cycles
TAIL SKID LIGHT ILLUMINATED AFTER TAKEOFF. RETURNED TO MSY. *S/D* MAINTENANCE CLEANED AND LUBED TAIL SKID UP SWITCH, S663. LANDING GEAR HANDLE WAS CYCLED SEVERAL TIMES WITH LANDING GEARS PINNED. NO PROBLEMS FOUND. NO FURTHER PROBLEMS REPORTED.
Part: SEAL — MISALIGNED (PAX DOOR) · airframe 58,060 hrs · 33,660 cycles
VERY LOUD NOISE FROM DOOR 1L AFTER TAKEOFF. RETURNED TO DEN. *S/D* FOUND UPPER HINGE CUTOUT SEAL NOT FITTING CORRECTLY. REPLACED SEALS AND CHECKED GOOD.
1999
Part: COFFEMAKER — SMOKING (GALLEY)
LOWER COFFEEMAKER IN AFT GALLEY SMOKING AND SPARKING. *S/D* REPLACED COFFEEMAKER. INSPECTED WIRING, LEFT UNIT ON FOR SEVERAL HOURS, NO DEFECTS NOTED.
Part: O-RING — MISSING (NR 2 ENGINE)
EXPERIENCED LOW OIL PRESSURE INDICATION IN NR 2 ENGINE. SHUT DOWN NR 2 ENGINE. *S/D* DURING REPLACEMENT OF FUEL PUMP FOR TIME, FUEL PUMP DRIVE SHAFT O RING WAS NOT INSTALLED CAUSING OIL LOSS, AND ILLUMINATION OF LOW OIL PRESSURE LIGHT. AIRCRAFT RETURNED TO SERVICE AFTER INSTALLATION OF MISSING O RING, OIL SYSTEM SERVICE AND FUNCTIONAL RUN.
Part: POWER SUPPLY — INOPERATIVE (EMER EXIT)
AFT EXIT EMERGENCY EXIT SIGN LIGHTS INOPERATIVE. REPLACED THE POWER SUPPLY BASE ASSEMBLY.
Part: SWITCH — FAILED (RT MLG)
RIGHT GEAR DOOR INDICATION LIGHT ON DURING CLIMBOUT OF MSP. RETURNED TO MSP FOR MAINTENANCE INSPECTION. *S/D* ACCOMPLISHED TEST OF LANDING GEAR DOOR WARNING SWITCH, TESTS GOOD. ENGINEERING FOLLOWUP - ADDED ITEM TO ACCOMPLISH PRECAUTIONARY REPLACEMENT OF LANDING GEAR WARNING SWITCH AND DOOR ACTUATOR ASSY.
1998
Part: BATTERY — DISCHARGED (CABIN)
AIRSTAIR EMERGENCY LIGHT INOPERATIVE. *S/D* REPLACED BATTERY.
Part: STRUCTURE — VIBRATIONS (AIRFRAME)
UPON LANDING ROLLOUT CREW REPORTED VIBRATIONS IN THE AIRFRAME. UPON TAXIING CREW NOTICED CONDITION GETTING WORSE AND ELECTED TO STOP. PASSENGERS DEPLANED AND AIRCRAFT TOWED TO HANGER.
1997
Part: O-RING — DAMAGED (NR 14 SPOILER)
HYDRAULIC SYSTEM-A FLUID WENT TO ZERO IN FLIGHT. LANDED UNDER AMBER ALERT IN DEN. TOWED TO GATE. *S/D* REPLACED DAMAGED 'O' RING IN THE FILTER BOWL PACKING ON NR 14 SPOILER.
Part: ANTI-ICE VALVE — LEAKING (NR 3 STRUT)
ON CLIMBOUT, THE NR 3 ENGINE STRUT OVERHEAT LIGHT CAME ON. FOLLOWED PROCEDURE AND THE LIGHT EXTINGUISHED. *S/D* FOUND 13TH STAGE ANTI-ICE VALVE LEAKING. REPLACED VALVE.
Part: LIGHT — INOPERATIVE (BS 805)
OVERHEAD CABIN EMERGENCY LIGHT FOR OVERWING EXIT INOP. *S/D* LIGHT ASSY REPLACED. EMERGENCY LIGHTING SYSTEM OPERATED NORMALLY.
Part: CONTROL MECH — OUT OF ADJUST (RT AILERON)
AILERON TRIM EXCEEDS ONE UNIT LEFT WING. *S/D* FOUND THE RIGHT AILERON OUT OF RIG. RERIGGED RIGHT AILERON AND THE SYSTEM CHECKED OK.
1996
Part: SLIDE — FAILED (CABIN)
DURING SHOP OVERHAUL OF SLIDE REMOVED FOR OVERHAUL TIME EXPIRATION INFLATABLE PORTION DEVELOPED A 3 INCH SEAM LEAK ON THE TUBE, APPROXIMATELY 4 FEET FROM THE TOE END OF THE UNIT. SCRAPPED SLIDE.
1995
Part: EEL — INOPERATIVE (CABIN)
OVERHEAD EMERGENCY EXIT LIGHT INOPERATIVE ROW 8. REPLACED EMERGENCY LIGHT ASSEMBLY.
Part: O-RING — LEAKING (ACCESSORY DRIVE)
MODERATE VERY NOTICEABLE SMELL OF OIL PRIOR TO AND DURING TAKEOFF ROLL, AT POWER CHANGES IN CRUISE AND DESCENT, MOST CERTAINLY ENGINE OIL, EITHER NR 1 OR NR 3 DUE TO BLEED CONFIGURATION. SUPPLEMENTAL DATA UPDATE: FOUND N-1 ACCESSORY DRIVE CASE COVER LEAKING. REMOVED COVER, REPLACED O-RING, AND REASSEMBLED.