Service difficulty report · Control Valve · Boeing 767375

Difficulty date
January 6, 2018
Submitted
January 10, 2018
Operation
Air carrier
Aircraft
N649GT
Make and model
Boeing 767375
Aircraft serial
25864
Aircraft time
85,559 hours, 22,198 cycles
Part
Control Valve
Part number
3964621
Part serial
957
Condition
Malfunctioned
Location
Nr 1 A/C Pack
Stage of operation
TX
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

NR 1 PACK WILL NOT TURN OFF. REMOVED AND REPLACED THE FLOW CONTROL VALVE IAW AMM 78-31-00. CHECKED NORMAL.