Service difficulty report · Switch · Boeing 737890

Difficulty date
June 24, 2019
Submitted
July 2, 2019
Operation
Air carrier
Aircraft
N593AS
Make and model
Boeing 737890
Aircraft serial
35107
Aircraft time
42,749 hours, 12,904 cycles
Engine
Cfmint CFM567B27
Part
Switch
Part number
2688072
Condition
Failed
Location
Nr 1 Engine Sov
Stage of operation
TX
How discovered
V
Nature of condition
J
Precautionary procedure
O

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

What was found

#1 "ENG VALVE CLOSED" LIGHT BRIGHT ON SHUTDOWN. GROUNDED - YES. ACCOMPLISHED TROUBLESHOOTING REF B737-800 FIM 73-06 TASK 804. REPLACED HIGH PRESSURE SHUTOFF VALVE SWITCH REF B737-800 AMM 73-21-09 GROUND VERIFICATION TESTS PASS. REF AMM 71-00-00-700-807 ACTUATORS TEST AND 71-00-00-700-808 ENGINE RUN - EEC BITE CHECK. THIS CLEARS MEL 73-10.