Service difficulty report · Fuel Sys · Boeing 747422

Difficulty date
October 22, 2013
Submitted
October 25, 2013
Operation
Air carrier
Aircraft
N181UA
Make and model
Boeing 747422
Aircraft serial
25278
Aircraft time
92,270 hours, 11,102 cycles
Engine
Pwa PW4056
Part
Fuel Sys
Condition
Leaking
Location
Horiz Stab
Stage of operation
IN
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

FUEL LEAKING OUT OF STAB COMPARTMENT. FOUND FUEL SITTING BELOW STAB BOX, FWD & AFT STAB COMPARTMENT DOORS OPEN FOR ACCESS. HORIZONTAL STAB TANKS DRAINED. CLEANED STAB COMPARTMENT & FOUND FUEL UNDER LT FUEL TANK SUMP VLV.