SDR ASAA2016032716103

Service difficulty report · A/C Pack · Boeing 737890

Difficulty date: March 27, 2016
Submitted: March 29, 2016
Operation: Air carrier
Aircraft: N596AS
Make and model: Boeing 737890
Aircraft serial: 35688
Aircraft time: 30,260 hours, 9,266 cycles
System (JASC): 2150 · Cabin Cooling System
Part: A/C Pack
Condition: Malfunctioned
Stage of operation: NR
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

UNABLE TO COOL DOWN CABIN TEMP WITH PASSENGER CABIN FWD OR AFT CABIN TEMPERATURE SELECTORS, COMPLIED WITH, CABIN TEMPERATURE HOT, ABNORMAL CHECKLIST. ACFT GROUNDED. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TESTS, BOTH CONTROLLERS. INITIALLY NR 2 TCV LIGHT, THIS PACK, CAME ON. RESET AND PERFORMED ALL TEST PASS "GO" IAW AMM 21-60-00-813.