Service difficulty report · Sensor · Boeing 737990ER

Difficulty date
February 27, 2021
Submitted
March 16, 2021
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
18,534 hours, 5,856 cycles
Engine
Cfmint CFM567B27E
Part
Sensor
Part number
RP23600
Condition
Damaged
Location
Nr 2 Engine
Stage of operation
IN
How discovered
O
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

#2 ENG BITE HAS FAULT 75-20802 T25 SIGNALS DISAGREE. SHORT TIME FAULT. DEFERRED PER T/C 78273000. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 75-33 TASK 805. NO FAULTS ARE PRESENT. UPON GVI OF T25 SENSORS, FOUND #2 PIN OF B CHANNEL SENSOR BENT. REMOVED & REPLACED T25 SENSOR REF B737-900 AMM 73-21-02-400-801-F00. ACCOMPLISHED EEC TEST REF AMM 73-21-00-700-804-F00. OPS CK GOOD. GROUND VERIFICATION SUCCESSFUL.