Service difficulty report · Valve · Boeing 737890

Difficulty date
March 7, 2015
Submitted
March 9, 2015
Operation
Air carrier
Aircraft
N570AS
Make and model
Boeing 737890
Aircraft serial
35185
Aircraft time
30,802 hours, 9,150 cycles
Part
Valve
Part number
3989083
Part serial
9374
Condition
False Activation
Location
Rt A/C Pack
Part time
30,814 hours, 9,153 cycles
Stage of operation
NR
How discovered
9
Nature of condition
N
Precautionary procedure
O

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

What was found

ON RECALL-RIGHT PACK LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED NR 2 PACK / ZONE TEMP CONTROLLER BITE, THIS PACK TCV LIGHT ILLUMINATED, REF FIM 21-62, TASK 801. REPLACED RT PACK TEMP CONTROL VALVE, INSTALLATION TEST OK, NO LEAKS NOTED REF MM 21-51-10 AND FIM 21-62-TASK 831. REACCOMPLISHED NR 2 PACK / ZONE TEMP CONTROLLER BITE, NO FAULTS INDICATED, GROUND VERIFICATION TEST SUCCESSFUL, REF FIM 21-62, TASK 801.