SDR ASMF202110019

Service difficulty report · Fuel Heater · Boeing 73786J

Difficulty date: September 9, 2021
Submitted: October 27, 2021
Operation: Air carrier
Aircraft: N368AR
Make and model: Boeing 73786J
Aircraft serial: 36880
Aircraft time: 33,231 hours, 14,372 cycles
System (JASC): 7311 · Engine Fuel/Oil Cooler
Part: Fuel Heater
Part number: 457311382
Part serial: YB052144
Condition: Leaking
Location: Right
Part time: 20,858 hours, 8,011 cycles
Stage of operation: IN
How discovered: V
Nature of condition: K
Precautionary procedure: K

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

What was found

DURING TRANSIT CHECK, A FUEL LEAK WAS DETECTED IN THE RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION ON RIGHT ENGINE VENTS AND DRAINS, DETECTING LEAK FUEL ON HEATER SERVO FUEL; SO THE HEATER SERVO FUEL WAS REPLACED IAW AMM 73-11-07-400/000-801-F00 AND RIGHT ENGINE WAS RUN IAW MM 71-00-00, TEST 3A, TESTED CORRECT.

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