Service difficulty report · Warning System · Boeing 737890

Difficulty date
October 14, 2018
Submitted
October 15, 2018
Operation
Air carrier
Aircraft
N534AS
Make and model
Boeing 737890
Aircraft serial
35202
Aircraft time
30,633 hours, 8,925 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
CR
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

AUTO FAIL LT ON PRESS PANEL ILLUMINATED AT FL 320 REFERENCED QRH 2.2 "AUTO FAIL " CABIN PRESSURE NORMAL IN ALT MODE. GROUNDED - YES. CYCLED POWER. PERFORMED FIM 21-31 TASK 801. NO FAULTS FOUND. BITE BOTH CONTROLLERS GOOD.