SDR ASAA2016122319133

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: December 23, 2016
Submitted: December 27, 2016
Operation: Air carrier
Aircraft: N512AS
Make and model: Boeing 737890
Aircraft serial: 39043
Aircraft time: 32,281 hours, 9,816 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Warning Light
Condition: False Activation
Stage of operation: NR
How discovered: 9
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 MASTER CAUTION RECALL, CONTROL CABIN, FWD, AND AFT CABIN ZONE TEMP LIGHTS ILLUMINATED. ON MASTER CAUTION RESET, ALL THREE ZONE TEMP LIGHT EXTINGUISHED. ACFT GROUNDED. BITE OF NR 1 & 2 PACK ZONE TEMP CONTROLLERS SHOW FLT DECK & SELECTOR FAULTS FOR PREVIOUS FLT. BITE OF CONTROLLERS NORMAL IAW AMM 21-61-00-700-806-002.