Service difficulty report · Coupling · Boeing 757222

Difficulty date
December 31, 2011
Submitted
January 26, 2012
Operation
Air carrier
Aircraft
N520UA
Make and model
Boeing 757222
Aircraft serial
24890
Aircraft time
69,601 hours, 26,120 cycles
Engine
Pwa PW2037
Part
Coupling
Condition
Leaking
Location
Fuel System
Stage of operation
IN
How discovered
9
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

FUEL LEAKING FROM NR 1 ENGINE. FOUND FUEL LEAKING FROM COUPLING O-RING. REMOVED GAMA COUPLING FOUND SEALING SURFACES GALLED. MM 28-22-07 PG 617 ITEM (D). REMOVED FUEL LINE FROM FWD SPAR TO THE NEXT FWD COUPLING. INSTALLED TUBE ASSY WITH NEW PACKINGS. LEAK CHECKED GOOD.