Service difficulty report · Control Valve · Boeing 737890

Difficulty date
March 17, 2014
Submitted
March 19, 2014
Operation
Air carrier
Aircraft
N583AS
Make and model
Boeing 737890
Aircraft serial
35681
Aircraft time
25,286 hours, 7,482 cycles
Part
Control Valve
Part number
3989083
Part serial
9373
Condition
Malfunctioned
Location
Rt A/C Pack
Part time
23,428 hours, 7,669 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

DURING LANDING CHECKLIST, PUSHED RECALL RT PACK LIGHT ON. ACFT GROUNDED. REPLACED AND TESTED RT PACK TEMPERATURE CONTROL VALVE IAW MM 21-51-10-000-801, MM 21-51-10-400-801. OPS NORMAL, NO LEAKS NOTED. PERFORMED NR 2 PACK/ZONE TEMPERATURE CONTROLLER BITE TEST IAW MM 21-61-00-700-806-002. ALL TESTS PASS.