SDR 9518046601

Service difficulty report · Actuator · Boeing 747151

Difficulty date
November 14, 1995
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N601US
Make and model
Boeing 747151
Aircraft serial
19778
Part
Actuator
Part number
69B803587
Condition
Leaking
Location
Rt Body Gear
Stage of operation
DE
Nature of condition
K, J
Precautionary procedure
O

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

What was found

DURING DESCENT, THE NR 1 HYDRAULIC SYSTEM FAILED. ALSO, ALTERNATE ELECTRICAL SYSTEM FAILED TO OPERATE FLAPS. CREW LANDED AIRCRAFT WITH OUTBOARD FLAPS AT 25 DEGREES AND INBOARD AT 10 DEGREES. FLIGHT LANDED WITHOUT INCIDENT AND WAS TOWED TO GATE. FOUND LEAKING DOWNLOCK ACTUATOR ON RIGHT BODY GEAR. REPLACED UNIT AND CHECK WAS NORMAL.