Service difficulty report · Start Valve · Boeing 737890

Difficulty date
February 13, 2011
Submitted
February 16, 2011
Operation
Air carrier
Aircraft
N579AS
Make and model
Boeing 737890
Aircraft serial
35187
Aircraft time
14,955 hours, 4,478 cycles
Part
Start Valve
Part number
32896302
Part serial
10222
Condition
Failed
Location
Nr 2 Engine
Part time
14,963 hours, 4,480 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

DURING ENGINE START ENGINE NR 2 AT STARTER (AUTO) CUTOUT AT APPROX 55 N2 THE START SWITCH MOVED NORMALLY FROM "GRD" TO "OFF" AND THE ILLUMINATED "START VALVE OPEN" LIGHT (AMBER) MOMENTARILY EXTINGUISHED AND THEN RE- ILLUMINATED AND STAYED ILLUMINATED. ACCOMPLISHED QRC CHECKLIST TO START LEVER CUTOFF. REPLACED NR 2 ENG START VALVE REF MM 80 11 03 400 801. LEAK AND OPS CHECK GOOD REF 71 00 00 800. INDICATION NORMAL.