SDR ASAA2014013006724

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: January 30, 2014
Submitted: February 3, 2014
Operation: Air carrier
Aircraft: N558AS
Make and model: Boeing 737890
Aircraft serial: 35177
Aircraft time: 29,181 hours, 8,593 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Warning Light
Condition: False Activation
Location: Auto Pressure
Stage of operation: DE
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

DURING DESCENT, PRESSURE AUTO FAIL LIGHT ON. SWITCHED TO ALTERNATE, FAILED LIGHT ON AS WELL. ALL DASHES IN WINDOWS. ACFT GROUNDED. PERFORMED BITE CHECK OF PRESSURE CONTROLLERS, NO CURRENT FAULTS LOGGED IAW FIM 21-31 TASK 801. PERFORMED PRESSURIZATION SYS GROUND TEST, NO DEFECTS NOTED, IAW AMM 21-31-00-700-802, ACFT OK FOR SERVICE.