SDR ASAA2017100422108

Service difficulty report · Control Panel · Boeing 737990ER

Difficulty date: October 4, 2017
Submitted: October 5, 2017
Operation: Air carrier
Aircraft: N493AS
Make and model: Boeing 737990ER
Aircraft serial: 41727
Aircraft time: 5,777 hours, 1,947 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Control Panel
Condition: Malfunctioned
Location: Cabin Pressure
Stage of operation: NR
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 PANEL STUCK IN BRIGHT MODE, DOES NOT DIM. ACFT GROUNDED. VERIFIED DEFECT, UNABLE TO ADJUST PANEL BRIGHTNESS TO DIM. CYCLED THE ACFT POWER, PANEL, BRIGHTNESS NOW OPS NORMAL. ACCOMPLISHED A NR 1 & 2 DCPC BITE IAW FIM 21-31, TASK 801, NO FAULTS.