SDR ASAA2017011819435

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: January 18, 2017
Submitted: January 20, 2017
Operation: Air carrier
Aircraft: N407AS
Make and model: Boeing 737990ER
Aircraft serial: 41731
Aircraft time: 16,623 hours, 5,335 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Warning Light
Condition: False Activation
Location: Rt A/C Pack
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

RIGHT PACK LIGHT ILLUMINATED AND DID NOT RESET WITH CHECKLIST. ACFT GROUNDED. RT PACK TEMP CONTROLLER SHOWS THE RT RAM AIR ACTUATOR FAULTED. FAULT CLEARED. PACK TEMP CONTROLLER OPS NORMAL IAW FIM 21-62 TASK 836. NO HISTORY LAST 30 DAYS.