N4735U
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| UNITED AIRLINES, INC. (CALA) | Operator | on 1975-08-24 | Operator named in NTSB report |
Accident & incident history
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.
8 reports on file, 1995-07-12 – 1997-03-28.
Part: ACTUATOR — FAILED (LT MLG)
AFTER TAKEOFF ON GEAR RETRACTION, LEFT WING GEAR AND DOOR LIGHT ILLUMINATED. LIGHT ON IN BOTH PRIMARY AND ALTERNATE POSITIONS. FOLLOWED IRREGULAR PROCEDURES, LIGHTS REMAINED ON. FLIGHT RETURNED TO BKK. RETRACT ACTUATOR ROD END BEARING BROKEN. INNER BEARING CRACKED, ATTACH BOLT GALLED. REPLACED LEFT WING LANDING GEAR RETRACT ACTUATOR, OPERATION CHECKS NORMAL.
Part: ACTUATOR — FAILED (LT MLG DOOR)
AFTER TAKEOFF, LEFT WING DOOR LIGHT ILLUMINATED IN BOTH PRIMARY AND ALTERNATE POSITION ACCOMPANIED WITH RED DOOR AND GEAR LIGHT. AIRCRAFT RETURNED TO BKK. REPLACED LEFT WING DOOR ACTUATOR PER MAINTENANCE MANUAL. OPERATION CHECKS NORMAL.
Part: SEQUENCE VALVE — FAILED (LT MLG WW)
AIRCRAFT RETURNED TO FIELD DUE TO LANDING GEAR DOOR WARNING LIGHT. *S/D* REPLACED LWLG UPLOCK SEQUENCE VALVE, SWUNG GEAR SEVERAL TIMES. ACCOMPLISHED VERIFICATION FLIGHT PERFORMING SEVERAL GEAR EXTENSIONS/RETRACTIONS, OPERATION CHECKS NORMAL.
Part: SEQUENCE VALVE — MALFUNCTIONED (LT MLG WW)
AFTER TAKEOFF, LEFT BODY GEAR DOOR AND LEFT WING DOOR OPEN LIGHTS ILLUMINATED. AIRCRAFT RETURNED TO FIELD. *S/D* REPLACED LBLG UPLOCK SEQUENCE VALVE, LEFT BODY GEAR DOOR SEQUENCE VALVE, AND LWG DOOR SEQUENCE VALVE. GEAR SWUNG SEVERAL TIMES, OPERATION CHECKS NORMAL.
Part: POWER SUPPLY — INOPERATIVE (CABIN)
EXIT EMERGENCY LIGHT ABOVE UPPER DECK CREW EXIT DOOR IS INOP. REPLACED BATTERY POWER SUPPLY OVER UPPER DECK EMERGENCY EXIT.
Part: SLIDE — LEAKING (CREW COMPT)
DURING ROUTINE OVERHAUL OF CREW SLIDE, UNIT FAILED AIR RETENTION TEST DUE TO SEAM LEAKS, POROSITY AND MINOR PUNCTURES. SCRAPPED UNIT.
Part: SLIDE — FAILED TEST (ALL TUBES)
SLIDE FAILED AIR RETENTION TEST DURING OVERHAUL. FAILED DUE TO POROSITY. SLIDE SCRAPPED.
Part: TUBE — FAILED (SLIDE RAFT)
SLIDE RAFT WAS FOUND TO HAVE POROSITY ON BOTH THE RT AND LT UPPER TOP TUBES AND IN BOTH ASPIRATOR TUBE AREAS. SCRAPPED SLIDE.