Service difficulty report · Control Panel · Boeing 737990ER

Difficulty date
November 28, 2016
Submitted
November 30, 2016
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
4,432 hours, 1,442 cycles
Part
Control Panel
Part number
10194391001
Part serial
2015080023
Condition
Failed
Location
Cabin Pressure
Part time
4,425 hours, 1,440 cycles
Stage of operation
TX
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

PRESSURE CONTROLLER DIGITAL INDICATORS BLINKING ON AND OFF WHILE PARKED AT GATE DURING PRE-FLIGHT. ACFT GROUNDED. REPLACED CABIN PRESSURE CONTROL PANEL, IAW AMM 21-31-02, OPS CHECKED NORMAL.