Service difficulty report · Sensor · Boeing 737890

Difficulty date
November 6, 2020
Submitted
November 10, 2020
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
43,404 hours, 12,782 cycles
Part
Sensor
Part number
1296663
Part serial
21939
Condition
Inoperative
Location
Precooler
Part time
14,597 hours, 4,764 cycles
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

HEALTH CHECK REQUIRES REPLACEMENT OF PRE-COOLER VALVE SENSOR. GROUNDED-YES. R & R PRECOOLER VALVE SENSOR NR 2 ENGINE, REF B737-800 AMM 36-12-03.