Service difficulty report · Start Valve · Boeing 737890

Difficulty date
July 29, 2018
Submitted
July 31, 2018
Operation
Air carrier
Aircraft
N588AS
Make and model
Boeing 737890
Aircraft serial
35685
Aircraft time
40,861 hours, 12,373 cycles
Part
Start Valve
Part number
32896302
Part serial
10803
Condition
Failed
Location
Nr 1 Engine
Part time
40,867 hours, 12,376 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

NR 1 START VALVE WOULD NOT OPEN FOR START. GROUNDED - YES. C/W FIM TASK 80-07 TASK 804. CONFIRMED 28V AT CONNECTOR DP1202 ON NR 1 ENGINE. REMOVED AND REPLACED NR 1 START VALVE PER AMM 80-11-03. OPS AND LEAK CHECKS GOOD.