Service difficulty report · Control Valve · Boeing 737990ER

Difficulty date
October 29, 2015
Submitted
November 2, 2015
Operation
Air carrier
Aircraft
N464AS
Make and model
Boeing 737990ER
Aircraft serial
40714
Aircraft time
5,817 hours, 1,861 cycles
Engine
Cfmint CFM567B27E
Part
Control Valve
Part number
3989084
Part serial
21580
Condition
Failed
Location
Rt A/C Pack
Part time
5,817 hours, 1,861 cycles
Stage of operation
NR
How discovered
9
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

EMG ON RECALL, RT PACK LIGHT ILLUMINATES, RESETS. RT PACK ZONE TEMP CONTROLLER LOGGED "TCV" FAULT, WILL NOT RESET. ACFT GROUNDED. R & R RT ACFT TEMPERATURE CONTROL VALVE REF AMM TASK 21-51-10-000-801 , 21-51-10-400-801. LEAK & OPS CK OK.