Service difficulty report · Start Valve · Boeing 737890

Difficulty date
July 1, 2012
Submitted
July 17, 2012
Operation
Air carrier
Aircraft
N581AS
Make and model
Boeing 737890
Aircraft serial
35188
Aircraft time
19,759 hours, 6,138 cycles
Engine
Cfmint CFM567B27
Part
Start Valve
Part number
32896302
Part serial
10352
Condition
Failed
Location
Nr 1 Engine
Part time
19,762 hours, 6,139 cycles
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

NO ROTATION ON N2 & N1 ON NR 1 ENG WHEN START SWITCH ROTATED TO GROUND. ACFT GROUNDED. WHEN MOTORING NR 1 ENG FOUND START VALVE SLOW TO OPEN. R & R NR 1 ENGINE START CONTROL VALVE, LEAK AND OPS CK NORMAL. REF AMM 80-11-03.