Service difficulty report · Sensor · Boeing 7378

Difficulty date
September 21, 2026
Submitted
September 23, 2026
Operation
Air carrier
Aircraft
N47281
Make and model
Boeing 7378
Aircraft serial
62535
Aircraft time
14,027 hours, 4,778 cycles
Engine
Cfmint LEAP1B28
Part
Sensor
Part number
51090450001
Condition
Faulted
Location
Nr 1 Engine
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ENG ANTI-ICE LIGHT IS ON PILOT DEBRIEF ENG 1 ANTI ICE LIGHT CAME ON AFTER CLIMB OUT WHEN TURNED OFF PILOT DEBRIEF ENG 1 ANTI ICE LIGHT CAME ON AFTER CLIMB OUT WHEN TURNED OFF ENG 1 INTERMEDIATE DUCT PRESSURE SENSOR SIGNAL OUT OF RANGE MSG 36-21010 LATCHED. IASC- LT. BLEED PI SENSOR L STAUS MESSAGE. REF FIM TASK 36-21 TASK 801. VERIFIED FAULT OCCURRED DURING FLIGHT PHASE CLIMB. REF LOG 3348631 PRSOV WAS CHANGED ON 20 SEP 26. REPLACED NR 1 ENG PI SENSOR PER AMM 36-11-05-000/400-801. ELECTRICAL LRU - REPLACEMENT TEST, TASK 36-00-00-710-801 PASSED. MAINT MSG 36-21010 NO LONGER ACTIVE OR LATCHED, ENG ANTI ICE LIGHT EXTINGUISHED. RAN ENGINE AT IDLE, TURNED ENGINE ANTI ICE ON. NO FAULTS NOTED.

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