SDR 95UAL900179

Service difficulty report · Retract Mech · Boeing 747122

Difficulty date: October 9, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N4714U
Make and model: Boeing 747122
Aircraft serial: 19876
Engine: Pwa JT9D7A
System (JASC): 3231 · Landing Gear Door Retract Section
Part: Retract Mech
Condition: Malfunctioned
Location: Lt Mlg Door
Stage of operation: CL
Nature of condition: E, J
Precautionary procedure: J, A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT BODY GEAR DOOR WOULD NOT CLOSE, DUMPED FUEL, BOTH PRIMARY AND SECONDARY SHOWED OPEN. ALSO, AIRCRAFT VIBRATED. PER CREW, WITH GEAR DOWN, GEAR DOOR LIGHTS WERE OUT, PRIMARY AND SECONDARY, WITH GEAR RETRACTED, LEFT GEAR DOOR OPEN LIGHT REMAINED ILLUMINATED AND FELT VIBRATION.