SDR ASAA2017042420525

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: April 24, 2017
Submitted: April 26, 2017
Operation: Air carrier
Aircraft: N585AS
Make and model: Boeing 737890
Aircraft serial: 35683
Aircraft time: 37,078 hours, 11,066 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Warning Light
Condition: False Activation
Location: Cabin Pressure
Stage of operation: CL
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

CLIMB THROUGH 10,000 FEET, CABIN ALTITUDE WARNING LIGHT AND HORN SOUNDED. PRESSURE CONTROLLER HAD SHIFTED TO MANUAL. MAINTAINED 10,000 FEET AND RAN PRESSURIZATION IN MANUAL IAW QRH. ACFT GROUNDED. PERFORMED FIM TASK 21-31-00-810-801, PARA. A-E (9) (W). NO ACTIVE FAULTS NOTED AT THIS TIME. OPS CHECKED NORMAL IAW FIM TASK. CHECKED OUTFLOW VALVE FOR OPERATION & OBSTRUCTIONS, CHECKED GOOD. SYSTEM GROUND TEST PASSED, NO FAULTS AT THIS TIME.