Service difficulty report · Fuel Sys · Boeing 7378

Difficulty date
November 17, 2025
Submitted
November 18, 2025
Operation
Air carrier
Aircraft
N8875B
Make and model
Boeing 7378
Aircraft serial
67918
Aircraft time
8,036 hours, 4,354 cycles
Engine
Cfmint LEAP1B28
Part
Fuel Sys
Condition
Erratic
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FUEL FLOWS LT & RT BOTH FLUCTUATING ERRATICALLY AFFECTING BOTH ENGINE N1 EGT, N2 BETWEEN 14-19000 FT IN CLIMB. PER POWERPLANT ENGINEERING PERFORMED IDLE RUN ON NR 1 & 2 ENGINES IAW AMM 71-00-00 & EEC TESTS PER AMM 71-00-00. TESTS GOOD. NO FAULTS NOTED.

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