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SDR ASAA2016032116046

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Service difficulty report · Filter · Boeing 737990ER

FAA SDR system

Difficulty date
March 21, 2016
Submitted
March 23, 2016
Operation
Air carrier
Aircraft
N479AS
Make and model
Boeing 737990ER
Aircraft serial
60576
Aircraft time
2,720 hours, 909 cycles
System (JASC)
2160 · Cabin Temperature Control System
Part
Filter
Part number
412A160541
Condition
Dirty
Location
Temp Sensor
Stage of operation
CR
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

TEMP CONTROL PROBLEM IN CABIN. FWD KNOB AT 10 O'CLOCK, AFT CABIN KNOB AT 2 O'CLOCK, ROWS 6-14 MUCH TOO HOT, REST OF PLANE COMFORTABLE. ACFT GROUNDED. PACK/ZONE TEMP CONTROLS LOGGED NO FAULTS, REF AMM 21-61-00. CLEANED BOTH PASS COMPARTMENT CABIN TEMP ASSY FILTERS, REF AMM 21-61-06. OPS CHECK OF CABIN TEMP CONTROL NORMAL, REF AMM 21-61-00.