SDR ASAA2018081545785

Service difficulty report · Controller · Boeing 737990ER

Difficulty date: August 14, 2018
Submitted: August 15, 2018
Operation: Air carrier
Aircraft: N442AS
Make and model: Boeing 737990ER
Aircraft serial: 43293
Aircraft time: 18,865 hours, 6,276 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Controller
Condition: Malfunctioned
Location: Lt Pack Temp
Stage of operation: NR
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

LEFT A/C PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. ACFT GROUNDED. PERFORMED A PACK TEMP CONTOL BITE IAW FIM 21-62, TASK 801 ON THE LT PACK ZONE TEMP CONTROLLER, LT PACK SENSOR LIGHT ILLUMINATED, RESET CONTROLLER, PERFORMED A BITE, NO FAULTS NOTED, NO PACK LIGHT ILLUMINATED ON RECALL.