Service difficulty report · Shutoff Valve · Boeing 737890

Difficulty date
September 28, 2019
Submitted
October 8, 2019
Operation
Air carrier
Aircraft
N518AS
Make and model
Boeing 737890
Aircraft serial
35693
Aircraft time
40,447 hours, 12,063 cycles
Engine
Cfmint CFM567B27
Part
Shutoff Valve
Part number
2688072
Condition
Out Of Limits
Location
Nr 2 Engine
Stage of operation
TX
How discovered
O
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

AFTER SHUTDOWN ENG 2 NORMALLY, ENG VALVE CLOSED ANNUNCIATOR REMAINED BRIGHT. ACFT GROUNDED. REPLACED NR 2 HMU HPSOV SWITCH REF B737-800 AMM 73-21-09-000-801-F00 & 73-21-09-400-801-F00. OP'S CHECK GOOD REF PP TEST #12 & #13 REF AMM 71-00-00-800-811-F00.