SDR ASAA2018091026051

Service difficulty report · Warning System · Boeing 737890

Difficulty date: September 7, 2018
Submitted: September 10, 2018
Operation: Air carrier
Aircraft: N587AS
Make and model: Boeing 737890
Aircraft serial: 35684
Aircraft time: 41,731 hours, 12,177 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Warning System
Condition: False Activation
Location: Cockpit
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

AIR CONDITIONING MASTER CAUTION WITH ASSOCIATED AUTO FAIL LIGHT ILLUMINATED DURING DESCENT. CONTINUED IN ALTN MODE PER QRH. PRESSURIZATION WAS NORMAL. GROUNDED - YES. ACCOMPLISHED AUTO FAIL LIGHT ON FAULT PER FIM 21-31 TASK 827 OPS CHECKS NORMAL.