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

Difficulty date
March 30, 2018
Submitted
April 4, 2018
Operation
Air carrier
Aircraft
N479AS
Make and model
Boeing 737990ER
Aircraft serial
60576
Aircraft time
11,026 hours, 3,675 cycles
Part
A/C Pack
Condition
Malfunctioned
Location
Left
Stage of operation
NR
How discovered
9
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

LEFT PACK PRIMARY TEMP CONTROL INOPERATIVE. ACFT GROUNDED. NR 1 PACK CONTROLLER SHOWS TCV. RESET, BITE CHECKED GOOD. PERFORMED A BITE CHECK TO BOTH PACK TEMP CONTROLLERS IAW FIM 21-62 TASK 801. NO FAULTS NOTED. NO LIGHTS ON RECALL.