SDR ASMF202104002

Service difficulty report · Servo · Boeing 73786J

Difficulty date: February 3, 2021
Submitted: April 8, 2021
Operation: Air carrier
Aircraft: N377AR
Make and model: Boeing 73786J
Aircraft serial: 37753
Aircraft time: 34,749 hours, 15,883 cycles
Engine: Cfmint CFM567B273
System (JASC): 7320 · Fuel Controlling System
Part: Servo
Part number: 457311382
Part serial: YB052144
Condition: Leaking
Location: Right
Part time: 20,858 hours, 8,011 cycles
Stage of operation: TX
How discovered: O
Nature of condition: K
Precautionary procedure: O

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

What was found

AIRCRAFT RETURNED TO PLATFORM DUE TO DURING RIGHT ENGINE START, A FUEL LEAK WAS DETECTED IN THE RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING LEAK FUEL BY SERVO FUEL HEAT IN THE RIGHT ENGINE; SO THE RIGHT ENGINE SERVO FUEL HEATER WAS REPLACED IAW AMM TASK 73-11-07-000/400-801-F00 AND RIGHT ENGINE WAS RUN IAW MM 71-00-00, TEST 3A, TESTED CORRECT

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