SDR ASAA2016012114953

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: January 21, 2016
Submitted: January 25, 2016
Operation: Air carrier
Aircraft: N596AS
Make and model: Boeing 737890
Aircraft serial: 35688
Aircraft time: 29,602 hours, 9,094 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Warning Light
Condition: Illuminated
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AUTO FAIL LIGHT ILLUMINATED AT CRUISE ALTITUDE 370, SWITCHED TO ALTN NO PRESSURIZATION FLUCTUATIONS. ACFT GROUNDED. VERIFIED DEFECT, NR 2 CPC DISPLAYS 1 FAULT. ACCOMPLISHED NR 2 CPC BITE REF FIM 21-31, TASK 801, CONTROLLER LRU FAIL FAULT NR 57 LOGGED. ACCOMPLISHED FIM 21-31, TASK 824, FAULT RESET. NR 2 CPC GROUND VERIFICATION TEST PASSED.