Service difficulty report · Line · Boeing 777222

Difficulty date
July 16, 2011
Submitted
August 3, 2011
Operation
Air carrier
Aircraft
N769UA
Make and model
Boeing 777222
Aircraft serial
26921
Aircraft time
64,781 hours, 11,759 cycles
Engine
Pwa PW4077
Part
Line
Condition
Damaged
Location
Hyd System
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

PRESSURE LINE FOR ENG HYD PUMP INSULATION MELTED AT PYLON CONNECTION FROM HYD LEAK. REPLACED NR 2 ENG PRESSURE LINE PER MM. FOUND NO LEAKS ON RETURN LINE. LEAK CHECK OK. REPLACED INSULATION BLANKET AND 2 CLAMPS.