Service difficulty report · Switch · Boeing 737890

Difficulty date
October 29, 2019
Submitted
October 30, 2019
Operation
Air carrier
Aircraft
N516AS
Make and model
Boeing 737890
Aircraft serial
39044
Aircraft time
41,284 hours, 12,406 cycles
Part
Switch
Part number
11500101
Condition
Faulted
Location
Temp
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

FOLLOW-UP TO REPORTS OF CONT CAB ZONE TEMP ILLUMINATING AT RECALL-- ACCOMPLISH #1 AND #2 PACK TEMPERATURE CONTROL-BITE PROCEDURE. DOCUMENT AND CORRECT ANY NOTED FINDINGS. REF B737-800 FIM 21-62 TASK 801. GROUNDED - YES. REF B737-800 FIM 21-60 TASK 801, PACK TEMP CONTROLLER #1 FAULTED "ZONE TRIM VALVE". RESET FAULT ON PACK TEMP CONTROL #1 PER FIM 21-62 TASK 835, REMOVED & REPLACED CONT CAB TEMP SELECTOR SWITCH AMM 21-61-07, OPS BOTH PACKS TO FULL COOL & FULL WARM AMM 21-00-00, RECALL TEST NO FAULT, TEMP CONTROLLER #1 & #2 BITE TEST PASSED NO FAULTS NOTED, CLEARS THIS TSR, SEAMC CHRIS NOTIFIED.