Service difficulty report · Start Valve · Boeing 777222

Difficulty date
July 8, 2008
Submitted
August 5, 2008
Operation
Air carrier
Aircraft
N213UA
Make and model
Boeing 777222
Aircraft serial
30219
Aircraft time
28,327 hours, 6,381 cycles
Engine
Pwa PW4077
Part
Start Valve
Part number
8088846
Condition
Faulty
Location
Nr 1 Engine
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

ENG START VALVE L LEFT STARTER AIR VALVE POSITION DISAGREES WITH COMMANDED POSITION OR STARTER AIR VALVE POSITION INDICATION IS LOST. STATUS 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 B) MSG02- NOT ACTIVE ENGINE START MODE DEPENDENT; STARTER AIR VALVE (SAV) (L ENG) IS NOT IN COMMANDED POSITION. PROG TEXT: - ITEM ROLLED FORWARD. MSG-8061561 INACTV ES MODE MSG-8061561 INACTV ES MODE. *S/D* SUSPECT FAULTY STARTER AIR VALVE. REPLACED START VALVE PER MM 80-21-44, OP CHECKED GOOD. AC OK FOR SERVICE.