Service difficulty report · Control Valve · Boeing 737823

Difficulty date
September 21, 2016
Submitted
September 22, 2016
Operation
Air carrier
Aircraft
N959NN
Make and model
Boeing 737823
Aircraft serial
33329
Aircraft time
6,606 hours, 2,267 cycles
Part
Control Valve
Part number
3989084
Part serial
22860
Condition
Faulted
Location
Rt A/C Pack
Stage of operation
CR
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

DURING CRUISE A RIGHT PACK OVERHEAT OCCURRED. CABIN TEMPERATURE ROSE TO 95 DEGREES. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT WAS GROUNDED. MAINTENANCE REMOVED AND REPLACED THE RIGHT TEMPERATURE CONTROL VALVE. OPS CHECKED NORMAL .