Service difficulty report · Control Valve · Boeing 737890

Difficulty date
August 10, 2009
Submitted
August 13, 2009
Operation
Air carrier
Aircraft
N587AS
Make and model
Boeing 737890
Aircraft serial
35684
Aircraft time
7,004 hours, 1,983 cycles
Part
Control Valve
Part number
3989083
Part serial
9977
Condition
Malfunctioned
Location
Ac Bay
Part time
7,004 hours, 1,983 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

CONTROL CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL. VERIFIED PERF FIM 21 62 TASK 842. NR 2 CONT BIT & PREV FLT TEST SHOWS FLT DECK TRIM VALVE FAULT. VERIFY TEST PASSES. NO CURRENT FAULT. NO HISTORY 90 DAYS. RESET FAULT. OPS CHECK LT PACK GOOD. MCF INFORMED.