SDR ASAA2018032824056

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: March 28, 2018
Submitted: March 29, 2018
Operation: Air carrier
Aircraft: N457AS
Make and model: Boeing 737990ER
Aircraft serial: 36355
Aircraft time: 16,401 hours, 5,473 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Warning Light
Condition: False Activation
Location: Lt 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

LEFT PACK LIGHT ILLUMINATED ON RECALL. PERFORMED A BITE CHECK ON BOTH PACK, ZONE TEMP CONTROLLERS IAW AMM 21-61-00-700-806-002, NR 1 CONTROLLER SHOWS EXIT LATCHED, RESET FAULTS, BITE CHECKED. NO FAULT NOTED. PERFORMED FIM 21-62 TASK 853, CHECKED GOOD TO E (3) VERIFIED GREEN. NO FURTHER ACTION REQUIRED. NO HISTORY 30 DAYS. ACFT GROUNDED.