SDR ASAA2020102333405

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: October 23, 2020
Submitted: October 26, 2020
Operation: Air carrier
Aircraft: N566AS
Make and model: Boeing 737890
Aircraft serial: 35182
Aircraft time: 51,410 hours, 15,272 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Warning Light
Part number: UNKNOWN
Condition: False Activation
Location: Rt A/C Pack
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

RT PACK LIGHT ILLUMINATES ON MC RECALL EXTINGUISHES ON RESET. GROUNDED-YES. PERFORMED PZTC BITE, IAW B737-800 AMM 21-61-00-700-806-002. TCV FAULT ON BIT AND PREV FLT, CONT 2, CLEARED ON VERIFY. RAN RT PACK FOR 15-20 MINS, NO DEFECTS NOTED, RT PACK LIGHT NO LONGER ON MC RECALL.