SDR ASAA2017052020838

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: May 20, 2017
Submitted: May 22, 2017
Operation: Air carrier
Aircraft: N530AS
Make and model: Boeing 737890
Aircraft serial: 36578
Aircraft time: 27,732 hours, 8,269 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Warning Light
Condition: False Activation
Location: Nr 2 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

NR 2 PACK LIGHT ON, RECALL, EXTINGUISHES AFTER RESET. ACFT GROUNDED. RT PACK TEMP CONTROL INOPERATIVE. PERFORMED PACK, ZONE TEMP CONTROL BITE TEST IAW AMM 21-61-00-700-806-002. RAM AIR ACTUATOR WAS FAULTED ON PREVIOUS LEG. PERFORMED FIM 21-53 TASK 804, AFTER PACK OPERATION ON GROUND FOR ONE HOUR, NO FAULTS. NO PREVIOUS HISTORY IN 30 DAYS ON RT PACK. CHECKED GOOD.