SDR ASAA2015010810185

Service difficulty report · Cabin Pressure · Boeing 737890

Difficulty date: January 8, 2015
Submitted: January 12, 2015
Operation: Air carrier
Aircraft: N594AS
Make and model: Boeing 737890
Aircraft serial: 35191
Aircraft time: 26,050 hours, 8,010 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Cabin Pressure
Condition: Malfunctioned
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: D

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

What was found

PRESSURIZATION AUTO FAIL ON TAXI AUTO FAIL LIGHT AND GREEN ALTN LIGHT ILLUMINATED. ACFT GROUNDED. PERFORMED AUTO FAIL LIGHT ON FAULT ISOLATION IAW FIM TASK 21-31, TASK 827. FOUND SEL PANEL LRU FAIL ON NR 2 DCPC BITE. PERFORMED CPC MODULE DISPLY FAULT ISOLATION IAW FIM 21-31, TASK 803. FAULT CLEARED, NO EXISTING FAULTS DISPLAYED, NO ADDITIONAL MAINTENANCE REQUIRED REF FIM 21-31, TASK 803 (E)(3)(C).