SDR ASAA2012122293514

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: December 22, 2012
Submitted: December 24, 2012
Operation: Air carrier
Aircraft: N557AS
Make and model: Boeing 737890
Aircraft serial: 35176
Aircraft time: 25,012 hours, 7,432 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Warning Light
Condition: False Activation
Location: Cabin Pressure
Stage of operation: TX
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

WITH PRESSURE CONTROL IN AUTO, AUTO FAIL LIGHT ON WITH GREEN ALT LIGHT ON, MOVING SWITCH TO ALT, AUTO FAIL LIGHT IS NOT ILLUMINATED BUT GREEN ALT LIGHT STAYS ON - DONE WITH QRH. RESET AUTO FAIL LIGHT & BITE TEST BOTH CABIN PRESSURE CONTROLLERS, NO FAULT LOGGED. GROUND TEST OPS CHECKED NORMAL REF AMM 21-31-00.