Service difficulty report · Shutoff Valve · Boeing 7379

Difficulty date
November 24, 2025
Submitted
November 28, 2025
Operation
Air carrier
Aircraft
N47412
Make and model
Boeing 7379
Aircraft serial
68811
Aircraft time
668 hours, 226 cycles
Part
Shutoff Valve
Part number
632160643
Part serial
5122
Condition
Faulted
Location
Nr 2
Part time
647 hours, 218 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ENGINE ANTI-ICE AMBER LIGHT ON NR 2 ENGINE CAME ON. PER CREW ISSUE PRESENTED DURING CLIMB. REF FIM 36-21011 PILOT TRIED TO RECYCLE NO HELP. COMPLIED WITH MEL HPSOV IS DEACTIVATED CLOSED. MAINT PROCEDURE COMPLIED WITH. CB FOR NR 2 COLLARED. MSG INHIBITED. PLACARD INSTALLED. *DM* SEE FIM 36-21 TSK 802 FOR NOTED MSG 36-21011. REPLACED PRSOV VALVE AND PRESSURE SENSOR. REF. FIM 36-21 TASK802, AMM 36-11-04/401, AMM 36-11-05/401. RESTORED SYSTEM TO NORMAL. OPS CHECKED AND LEAK CHECKED GOOD.

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