Service difficulty report · Control Valve · Boeing 737890

Difficulty date
November 18, 2012
Submitted
November 27, 2012
Operation
Air carrier
Aircraft
N593AS
Make and model
Boeing 737890
Aircraft serial
35107
Aircraft time
18,047 hours, 5,699 cycles
Part
Control Valve
Part number
3989083
Part serial
4798
Condition
Malfunctioned
Location
A/C Bay
Part time
33,011 hours, 14,902 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

PACK LIGHT ILLUMINATED, EXTINGUISHED WITH RESET. R & R LT PACK TEMP CONTROL VALVE REF AMM 21-51-10. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST. NO FAULTS NOTED. LEAK CKD GOOD REF AMM 21-51-10-790-001.