Service difficulty report · Controller · Boeing 737890

Difficulty date
December 17, 2011
Submitted
December 20, 2011
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
19,848 hours, 6,030 cycles
Part
Controller
Condition
Malfunctioned
Location
Ac Bay
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

PACK LIGHT ILLUMINATED DURING RECALL DURING LANDING CHECK. PERFORMED PACK ZONE TEMP BITE CHECK ON NR 1 & NR 2 ZONE TEMP CONTROLLERS PER AMM 21 61 00 700 806 002 NR 1 TEMP CONTROLLER CHECKS GOOD NR 2 TEMP CONTROLLER HAD A " RAM AIR ACT" FAULT. RESET FAULTS ON NR 2 TEMP CONTROLLER PERFORMED BITE TEST ON NR 2 TEMP CONTROLLER CHECKS GOOD GND VERIFICATION CHECKS GOOD.