Service difficulty report · Sensor · Boeing 737890

Difficulty date
August 20, 2023
Submitted
August 22, 2023
Operation
Air carrier
Aircraft
N535AS
Make and model
Boeing 737890
Aircraft serial
35200
Aircraft time
45,379 hours, 13,052 cycles
Part
Sensor
Part number
1296663
Part serial
16231
Condition
Faulty
Part time
5,207 hours, 1,540 cycles
Stage of operation
CL
How discovered
V
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

ON CLIMB OUT GOT "BLEED TRIP OFF" ON #2 SIDE AFTER SELECTING WING-ANTI ICE ON. RAN QRH AND PUSHED TRIP RESET. NO FURTHER ABNORMAL INDICATION. GROUNDED - YES. ACCOMPLISHED FIM 36-10 TASK 801. FOUND NO FAULTS. REF T/C NG-36WC-00001 FOR #2 ENGINE BLEED SYSTEM HEALTH CHECK, NO FAULTS FOUND ON HEALTH CHECK. AS PRECAUTIONARY REMOVED AND REPLACED PREE COOLER CONTROL VALVE SENSOR PER AMM 36-12-03-000-801 AND 36-12-03-400-801. ACCOMPLISHED BLEED AIR CROSSOVER OPERATIONAL TEST PER AMM 36-11-00-710-801. TEST PASSED. WITH #2 ENGINE AT 90% N1 WING ANTI ICE ON AND OFF, NO BLEED TRIP FAULT.