Service difficulty report · Line · Boeing 747422

Difficulty date
February 6, 2011
Submitted
February 9, 2011
Operation
Air carrier
Aircraft
N181UA
Make and model
Boeing 747422
Aircraft serial
25278
Aircraft time
81,480 hours, 9,993 cycles
Engine
Pwa PW4056
Part
Line
Part number
B14723
Condition
Leaking
Location
Apu Fuel
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

APU FUEL LINE SHROUD LEAKING FUEL. DRAINED APPROX 1 GAL OF FUEL FROM FUEL LINE SHROUD, WAITED 10 MIN FUEL CAME OUT OF DRAIN IN A STREAM DRAINED APPROX 4 OZ OF FUEL, WAITED 2 HRS DRAINED APPROX 1 PT OF FUEL FROM LINE, FUEL LEAK RATE EXCEEDS 1 DROP IAW MIN REF MM. REPLACED LEAKING LINE (180-0105) REF MM. LEAK CHECKED GOOD. NO FURTHER DEFECT NOTED.