N7441U
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| UNITED AIRLINES, INC. (CALA) | Operator | on 1983-03-30 | 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.
13 reports on file, 1996-01-19 – 2000-11-16.
Part: CAM — OUT OF ADJ (SERVICE DOOR) · airframe 60,572 hrs · 35,273 cycles
WARNING LIGHT ON RIGHT FORWARD SERVICE DOOR AT 1000 FEET AFTER OAK TAKEOFF. DIVERTED TO SFO. MAINTENANCE ADJUSTED THE UPPER CAM. DOOR OPERATIONALLY CHECKED OKAY. DEPARTED SFO AND RETURNED TO SFO DUE TO SAME DOOR INDICATION. SUPPLEMENTAL DATA UPDATE DOOR OUT OF RIG. RE-RIGGED DOOR PER MM52-40-20 & 52-10-20. REPRESSURIZED CABIN AND NO HANDLE MOVEMENT OR DOOR WARNING LIGHT.
Part: SEAT — LOOSE (CABIN) · airframe 58,496 hrs · 33,993 cycles
SEATS 3A AND 3B LOOSE NOT ATTACHED TO FLOOR PROPERLY. *S/D* UNKNOWN CAUSE FOR LOOSE SEAT ASSYS, NO RECENT MAINTENANCE ACTION IN THIS AREA. SUBSEQUENT FIX WAS TO TIGHTEN SEAT ATTACH FITTINGS.
Earlier reports · 1996–1999 · 11 reports
1999
Part: SWITCH — FAILED (E&E BAY)
ABORTED TAKEOFF AT 90 KNOTS DUE TO MACH AIRSPEED WARNING. *S/D* MAINTENANCE REPLACED THE NR 1 MACH AIR SPEED WARNING SWITCH. NO FURTHER PROBLEMS REPORTED.
Part: VALVE — FAILED (CABIN)
UNABLE TO PRESSURIZE IN AUTO OR STANDBY. RETURNED TO DEN. *S/D* REPLACED FLOW CONTROL VALVE.
1998
Part: ACTUATOR — FAILED (STAB TRIM)
MAIN STABILIZER ELECTRIC TRIM COASTS MORE THAN TWO TURNS AFTER SWITCH IS RELEASED. ON APPROACH, HAND FLYING, THE MAIN ELECTRICAL TRIM RAN AWAY NOSE UP WHILE TRIMMING FORWARD. STOPPED BY PUSHING AGAINST NOSE UP. *S/D* REPLACED STAB TRIM ACTUATOR AND OPS CHECKED OK.
Part: LIGHT — INOPERATIVE (CABIN)
AFT ENTRY DOOR OVERHEAD EMERGENCY EXIT LIGHT INOPERATIVE.
1997
Part: STOP FITTING — OUT OF ADJUST (L1 DOOR)
DOOR L1 CAME OPEN DURING TAXI IN. AIRCRAFT WAS ALREADY DEPRESSURIZED. FLIGHT ATTENDANT GRABBED AND CLOSED HANDLE. *S/D* DOOR STOPS WERE OUT OF RIG. DOOR RIG ADJUSTED AND DOOR CHECKED FOR PROPER OPERATION.
Part: BATTERY PACK — DISCHARGED (CABIN)
EMERGENCY EXIT LIGHT ON CEILING BY OVERWING EXITS IS INOPERATIVE. REPLACED BATTERY PACK.
Part: CLAMPS — LOOSE (NR 3 STRUT)
NR 3 ENGINE STRUT OVERHEAT LIGHT CAME ON AFTER TAKEOFF AND DURING CLIMB. LIGHT WENT OUT AT IDLE. CAME BACK ON WITH NR 3 BLEED SWITCH OFF AND HIGH POWER SETTING. RETURNED TO DEN. *S/D* LOOSE FITTING CLAMPS WERE FOUND DURING INSPECTION OF STRUT AREA. CLAMPS WERE TIGHTENED AND SENSE LOOPS WERE REPOSITIONED. AFTER ADJUSTMENTS, THE ENGINE RUN INDICATED NO STRUT OVERHEAT CONDITION, OPERATIONS CHECK NORMAL.
Part: FLAP MOTOR — FAILED (TE FLAPS)
ON FINAL APPROACH SELECTED 30 DEGREES, OUTBOARD FLAPS STAYED AT 25 DEGREES AND INBOARD FLAPS WENT TO 30 DEGREES. RESET TO 25 AND TO 30 AGAIN AND THE OUTBOARD FLAPS STAYED AT 25 SETTING. FOUND OUTBOARD FLAP DRIVE HYDRAULIC MOTOR HARD TO TURN. FLAP MOTOR BYPASSING A LARGE AMOUNT OF SKYDROL OUT OF OVERFLOW PORT. REPLACED HYDRAULIC MOTOR.
Part: TRANSMITTER — FAILED (LE FLAPS)
ON TAKEOFF DURING FLAP RETRACTION, SPLIT FLAPS OCCURRED. O/B FLAPS FROZE AT 15 I/B, FLAPS CONTINUED RETRACTING. ALT FLAP EXTENSION PROCEDURE PERFORMED BUT L/E DEVICES WOULD NOT RETRACT. ALT FLAPS USED TO EXTEND FLAPS FOR NORMAL LAND PDX. *S/D* REPLACED LEFT OUTBOARD FLAP TRANSMITTER, FLAPS OPERATED NORMALLY.
1996
Part: POWER SUPPLY — MALFUNCTIONED (CABIN)
LT OVERWING EMERGENCY LIGHTS FLASH WHEN ACTIVATED. REPLACED POWER SUPPLY MODULE.
Part: SEAM — LEAKING (NR 2L SLIDE)
NR 2L EVACUATION SLIDE REMOVED FOR EXPIRATION OF TIME. SHOP FOUND MINOR SEAM LEAK ON THE TUBE DIRECTLY UNDER THE GIRT. REPAIRED SEAM LEAK, NON-STRUCTUAL.