Service difficulty report · Controller · Boeing 737990ER

Difficulty date
July 1, 2017
Submitted
July 3, 2017
Operation
Air carrier
Aircraft
N408AS
Make and model
Boeing 737990ER
Aircraft serial
41732
Aircraft time
18,199 hours, 5,895 cycles
Part
Controller
Condition
Malfunctioned
Location
Cabin Pressure
Stage of operation
DE
How discovered
9
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

PRESSURIZATION CONTROLLER AUTO FAIL ILLUMINATED AT TOP OF DESCENT. ACFT GROUNDED. PERFORMED FIM 21-31, 827 AUTOFAIL FAULT RESET. OK FOR SERVICE.