SDR ASAA2014092209196

Service difficulty report · Warning Message · Boeing 737890

Difficulty date: September 22, 2014
Submitted: September 24, 2014
Operation: Air carrier
Aircraft: N563AS
Make and model: Boeing 737890
Aircraft serial: 35180
Aircraft time: 30,566 hours, 9,328 cycles
Engine: Cfmint CFM567B27
System (JASC): 2130 · Cabin Pressure Control System
Part: Warning Message
Condition: False Activation
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

DURING PREFLT, PRESSURIZATION AUTO FAIL AND ALTN ILLUMINATED. ACFT GROUNDED. PERFORMED PRESSURIZATION SYSTEM TEST NO NR 1 AND NR 2 CONTROLLER. OPS CHECKED NORMAL. REF AMM 21-31-00-700-802. NO HISTORY LAST 30 DAYS. AUTO FAIL AND ALTN LIGHT OFF.