SDR UPS97421796

Service difficulty report · Retract Mech · Boeing 747121

Difficulty date: January 2, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N682UP
Make and model: Boeing 747121
Aircraft serial: 20349
System (JASC): 3231 · Landing Gear Door Retract Section
Part: Retract Mech
Condition: Malfunctioned
Location: Mlg Doors
Stage of operation: CL
Nature of condition: J
Precautionary procedure: O

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

What was found

INSPECTION TYPE-N/A, LANDING GEAR DOOR LIGHT CAME ON BELOW 5,000 FT ON CLIMBOUT. DOOR ACTUALLY CAME OPEN. VIBRATION, GEAR SEEMED TO BE SLOW EXTENDING. INSPECTED ALL GEAR DOORS, GEAR ACTUATORS, DOOR ACTUATORS, ASSOCIATED PLUMBING, AND DOOR SWITCHES. NO DEFECTS OR LEAKAGE FOUND. OPERATED ALL GEAR DOORS, ALL OPENED AND CLOSED AT NORMAL SPEED.