Service difficulty report · Valve · Boeing 737890

Difficulty date
April 30, 2011
Submitted
May 2, 2011
Operation
Air carrier
Aircraft
N594AS
Make and model
Boeing 737890
Aircraft serial
35191
Aircraft time
11,765 hours, 3,720 cycles
Part
Valve
Part number
3989083
Part serial
0624
Condition
Failed
Location
A/C Bay
Part time
11,775 hours, 3,725 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

LEFT PACK LIGHT ON AFTER START OUT WITH MASTER CAUTION RESET. LEFT PACK/ZONE TEMP CONTROLLER FAULTED TCV THIS PACK. REPLACED LEFT TCV V139 REF MM 21 51 10. GROUND VERIFICATION TEST NORMAL REF MM 21 51 10.