Service difficulty report · Control Valve · Boeing 757223

Difficulty date
February 17, 2026
Submitted
February 19, 2026
Operation
Air carrier
Aircraft
N193AN
Make and model
Boeing 757223
Aircraft serial
32387
Aircraft time
70,117 hours, 18,873 cycles
Part
Control Valve
Part number
3987505
Part serial
2003C
Condition
Faulted
Location
Zone 100
Stage of operation
NR
How discovered
O
Nature of condition
P
Precautionary procedure
O

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

What was found

FLT: MGE300 . NO INDICATION ON ECS PAGE FOR LEFT PACK TEMP CONTROL VALVE. REPLACED TEMP CONTROL VALVE IAW AMM.