Service difficulty report · Modulating Valve · Boeing 737890

Difficulty date
January 14, 2023
Submitted
January 17, 2023
Operation
Air carrier
Aircraft
N583AS
Make and model
Boeing 737890
Aircraft serial
35681
Aircraft time
54,010 hours, 15,779 cycles
Part
Modulating Valve
Part number
3989083
Part serial
2215
Condition
Faulted
Location
Right Ecs Bay
Part time
19,394 hours, 5,554 cycles
Stage of operation
NR
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

R PACK LIGHT - RESETS. GROUNDED - YES. FOUND FAULT THIS PACK TCV (V141). REMOVED AND REPLACED RIGHT TCV IAW B737-800 AMM 21-51-10.