Service difficulty report · Controller · Boeing 737890

Difficulty date
October 25, 2015
Submitted
October 27, 2015
Operation
Air carrier
Aircraft
N593AS
Make and model
Boeing 737890
Aircraft serial
35107
Aircraft time
29,238 hours, 9,015 cycles
Part
Controller
Part number
2193301AC
Part serial
0895862
Condition
Failed
Location
Cabin Pressure
Part time
29,253 hours, 9,022 cycles
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

DURING PREFLIGHT, PRESSURIZATION PANEL DISPLAYED AMBER "AUTO FAIL" AND GREEN "ALTN" ANNUNCIATOR LIGHTS WITH SWITCH IN "AUTO" POSITION. ACFT GROUNDED. R & R NR 2 CABIN PRESSURE CONTROLLER. OP CK NORMAL. REF MM 21-31-01.