SDR ASAA2018060414886

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: June 1, 2018
Submitted: June 4, 2018
Operation: Air carrier
Aircraft: N493AS
Make and model: Boeing 737990ER
Aircraft serial: 41727
Aircraft time: 8,283 hours, 2,834 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Warning Light
Condition: False Activation
Location: Rt A/C Pack
Stage of operation: DE
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

DURING THE DESCENT CHECKLIST, THE RT PACK LIGHT ILLUMINATED, PACK LIGHT RESET AND WENT OUT. ACFT GROUNDED. ACCOMPLISHED PTC BITE IAW FIM 21-62 - 801, NO FAULTS, NR 1 & 2 PTC HAD TCV ON BITE AND PREVIOUS FLT WITH A GREEN ON VERIFY, RESET AND RAN WITH NO FURTHER FAULTS, ALL GROUND FUNCTIONAL TESTS PASSED, NO HISTORY 30 DAYS.