Service difficulty report · Seal · Boeing 777222

Difficulty date
March 28, 2011
Submitted
April 6, 2011
Operation
Air carrier
Aircraft
N220UA
Make and model
Boeing 777222
Aircraft serial
30223
Aircraft time
40,971 hours, 5,095 cycles
Engine
Pwa PW40903
Part
Seal
Part number
2330N60270
Condition
Leaking
Location
Fuel System
Stage of operation
NR
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

FLUID LEAK FROM PYLON AREA. DUE TO A EARLIER ISSUE WITH POSSIBLE FUEL LEAK FROM THE TUBE IN THE NR PYLON AREA, NR 9 DRAIN LINE CLEARS THIS AREA, PLEASE REPLACE THE SEAL AT CONNECTION -C- IN IPC 28-22-51-002A PG2 ITEM REQUIRED IS 145, PCN 752-1263. TWO SEALS ARE REQUIRED, **FWD SECTION ONLY**. SEALS ARE IN LOB BIN FROM HNL, 880-25. REF MM FOR DRAIN TUBE INSTALLATION. SEALS ARE LOB FROM HNL 880-25. THIS ITEM MUST BE COMPLETED OFF FLT 804-27MAR AT IAD AS PER OPBLM CONTROLLER. ACFT MAY CONTINUE TO CYCLE LIMIT PROVIDED NO LEAKS EXIST FROM ABOVE PYLON DRAIN. REPLACED FLEXIBLE COUPLING 2 EA SEALS REF IPC. RAN ENGINE AT IDLE FOR 5 MIN. NO LEAKS NOTED. NO LEAKS NOTED FROM DETAIL C COUPLING. SEALS REPLACED.