Service difficulty report · Start Valve · Boeing 777222

Difficulty date
May 16, 2011
Submitted
May 19, 2011
Operation
Air carrier
Aircraft
N219UA
Make and model
Boeing 777222
Aircraft serial
30551
Aircraft time
43,200 hours, 5,318 cycles
Engine
Pwa PW40903
Part
Start Valve
Part number
10011003
Part serial
98
Condition
Faulty
Location
Nr 1
Stage of operation
IN
How discovered
9
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

LEFT START VALVE POSITION DISAGREES WITH COMMANDED POSITION. ADVISORY MSG01- NOT ACTIVE ENGINE START MODE DEPENDENT; STARTER AIR VALVE (SAV) (L ENG) IS NOT IN COMMANDED POSITION. DB- ELECTRONIC ENGINE CONTROL (L ENG, CH A) O.K. TO DEFER START VALVE PER MEL 8011B. REVIEWED WITH SAMC. START VALVE REPLACED.