Service difficulty report · Start Valve · Boeing 737990ER

Difficulty date
January 22, 2015
Submitted
January 26, 2015
Operation
Air carrier
Aircraft
N423AS
Make and model
Boeing 737990ER
Aircraft serial
35206
Aircraft time
6,886 hours, 2,210 cycles
Engine
Ge CFM567B24
Part
Start Valve
Part number
32896302
Part serial
14523
Condition
Failed
Location
Nr 1 Engine
Part time
6,893 hours, 2,212 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

START VALVE NR 1 STAYED OPEN AFTER START. ACFT GROUNDED. R & R NR 1 ENG START VALVE IAW AMM 80-11-03. NR 1 ENG START VALVE TESTS GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL.