Service difficulty report · Control Valve · Boeing 737890

Difficulty date
August 13, 2009
Submitted
August 17, 2009
Operation
Air carrier
Aircraft
N564AS
Make and model
Boeing 737890
Aircraft serial
35103
Aircraft time
11,183 hours, 3,556 cycles
Part
Control Valve
Part number
3989083
Part serial
8951
Condition
Faulted
Location
A/C Bay
Part time
11,183 hours, 3,556 cycles
Stage of operation
LD
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

ON LANDING "RECALL" LEFT PACK LIGHT ILLUMINATES "AIR COND" LIGHT ILLUMINATES ON 6 PACK AND BOTH RESET WITH MASTER CAUTION. PERFORMED BITE CK REF FIM 21 62 TASK 801. FOUND LEFT ZONE TEMP CONT FAULTED LEFT TCV. REMOVED AND REPLACED LEFT TCV REF MM 21 51 10. RAN PACK OPS NORMAL. PERFORMED BITE CHECK NO FAULTS FOUND. NO PACK LIGHT ON RECALL. NO HISTORY 90 DAYS. GROUND FUNCTIONAL CHECK GOOD.