Service difficulty report · Control Valve · Boeing 737890

Difficulty date
March 23, 2019
Submitted
March 26, 2019
Operation
Air carrier
Aircraft
N562AS
Make and model
Boeing 737890
Aircraft serial
35091
Aircraft time
47,742 hours, 14,209 cycles
Part
Control Valve
Condition
Faulted
Location
Ac Bay
Stage of operation
TX
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

AFTER START ON RECALL, RIGHT "PACK" LIGHT ILLUMINATED BUT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. RELEASED PER MEL 21-32B. RIGHT PACK INOP. ACCOMPLISHED BITE ON PACK TEMP CONTROLLER IAW FIM 21-62 TASK 801. FOUND TCV FAULT ON RIGHT PACK TEMP CONTROLLER. WAS ABLE TO RESET FAULT. RAN PACKS BITE TEST BOTH PACKS PER AMM 21-51-00-700-803. RAN OPERATIONAL TEST PER AMM 21-51-00-700-802. OPS CHECK OK. GOOD FOR SERVICE.