Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
September 19, 2018
Submitted
September 20, 2018
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
21,780 hours, 7,177 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
NR
How discovered
O
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

RIGHT PACK LIGHT ILLUMINATED ON RECALL. RESET WITH SECOND PUSH. GROUNDED - YES. ACCOMPLISHED CABIN ZONE TEMP CONTROLLER BITE REF FIM 21-62 TASK 801. NR 2 CONTROLLER SHOWS "TEMP CONTROL VALVE" FAULT LAST LEG. ACCOMPLISHED VERIFY AND CLEARED FAULT. RIGHT PACK OPS NORMAL REF SAME.