Service difficulty report · Warning System · Boeing 737890

Difficulty date
July 22, 2018
Submitted
July 24, 2018
Operation
Air carrier
Aircraft
N530AS
Make and model
Boeing 737890
Aircraft serial
36578
Aircraft time
32,473 hours, 9,642 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
DE
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

LEFT A/C PACK ILLUMINATE ON RECALL ON DESCENT CHECKLIST, EXTINGUISHES WITH/ON MASTER CAUTION RESET. GROUNDED - YES. NR 1 PACK ZONE TEMP CONTROLLER SHOWS RAM AIR ACTUATOR ON BIT, GREEN FOR PREVIOUS & VERIFY, FAULT RESET REF FIM 21-62 TASK 801 & 837.