Service difficulty report · Control Valve · Boeing 737890

Difficulty date
January 2, 2010
Submitted
January 4, 2010
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
12,623 hours, 3,730 cycles
Part
Control Valve
Part number
3989083
Part serial
8724
Condition
Malfunctioned
Location
Ac Bay
Part time
12,633 hours, 3,732 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

RIGHT PACK LIGHT ILLUMINATED ON RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE CHECK REF FIM 21 62 00 810 801. NR 2 CONTROLLER LOGGED THIS PACK TCV. REMOVED AND REPLACED RIGHT PACK TCV REF MM 21 51 10. VALVE LEAK CHECKS GOOD PACK/ZONE TEMP CONTROLLERS BITE CHECK GOOD. RIGHT PACK LIGHT NO LONGER ILLUMINATES ON RECALL.