Service difficulty report · Valve · Boeing 777222

Difficulty date
August 21, 2011
Submitted
September 9, 2011
Operation
Air carrier
Aircraft
N795UA
Make and model
Boeing 777222
Aircraft serial
26927
Aircraft time
61,291 hours, 8,871 cycles
Engine
Pwa PW40903
Part
Valve
Part number
S218W1015
Part serial
03
Condition
Faulty
Location
Anti-Ice Sys
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT ENG AI VALVE MSG 30-10101. DUE TO REPEAT HITS ON L-EAI SYSTEM, DEFER EAI IN OPEN POSN PER MEL 3021E UNTIL ABOVE FIM CAN BE ACCOMPLISHED. IF NO FAULTS FOUND DURING FIM, RPLC LEFT EAI VALVE AS A PRECAUTION. DISCONNECTED AND SECURED. ELECT PLUG DM30211A. VERIFIED LEFT EAI VALVE OPEN WITH ENG RUN. REPLACED WITH NEW VALVE PER AMM AND TASK 30-21-00-730 806 003 ENG RUN.