SDR ASAA2017090921857

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: September 9, 2017
Submitted: September 11, 2017
Operation: Air carrier
Aircraft: N566AS
Make and model: Boeing 737890
Aircraft serial: 35182
Aircraft time: 40,974 hours, 12,270 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Warning Light
Condition: False Activation
Location: Temp Controller
Stage of operation: TX
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

AFTER ENGINE START, MASTER CAUTION RECALL AIR CONDITIONER WITH ZONE TEMP LIGHT ILLUMINATED. ACFT GROUNDED. IAW AMM 21-62-801, PERFORMED BITE CHECK OF BOTH PACKS TEMP CONTROLLERS, CLEARED ALL FAULTS, LIGHT EXTINGUISHED AND SYSTEM NOW OPS NORMAL.