SDR ASAA2017083021766

Service difficulty report · A/C Pack · Boeing 737990ER

Difficulty date: August 30, 2017
Submitted: September 1, 2017
Operation: Air carrier
Aircraft: N431AS
Make and model: Boeing 737990ER
Aircraft serial: 43255
Aircraft time: 15,338 hours, 5,059 cycles
System (JASC): 2150 · Cabin Cooling System
Part: A/C Pack
Condition: Malfunctioned
Location: Right
Stage of operation: DE
How discovered: O
Nature of condition: J
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING DECENT, FA'S REPORTED HOT CABIN TEMPS, FOLLOWED QRH 2.7, TURNED OFF RT PACK, CONTINUED DECENT WITH UNCONTROLLABLE TEMP. ACFT GROUNDED. ACCOMPLISHED BITE CHECK OF RT PACK, SHOWED TCV FAULT, FAULT CLEARED IAW FIM 21-62, TASK 801. OPS CHECK OF RT PACK AND TEMP CONTROL NORMAL IAW AMM 21-61-00.