Service difficulty report · Start Valve · Boeing 737890

Difficulty date
November 6, 2010
Submitted
November 10, 2010
Operation
Air carrier
Aircraft
N586AS
Make and model
Boeing 737890
Aircraft serial
35189
Aircraft time
11,595 hours, 3,781 cycles
Part
Start Valve
Part number
32896302
Part serial
10613
Condition
Faulty
Location
Nr 1 Engine
Part time
11,956 hours, 3,638 cycles
Stage of operation
IN
How discovered
O
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

NR 1 ENG STARTER DID NOT CUTOUT AUTOMATICALLY. REPLACED NR 1 ENG START VALVE REF MM 80 11 03 400 801 F00 80 11 03 000 801 F00 AND TEST 71 00 00 809 F00 LEAK CHECK GOOD. REPLACED NR 1 ENG START SWITCH (S266) IAW AMM 80 11 00 PAGE BLOCK 201. START SWITCH TEST GOOD. VERIFIED NR 1 ENG START SWITCH CUTOUT AT 56 PERCENT N2.