Service difficulty report · Hmu · Boeing 76731K

Difficulty date
April 2, 2019
Submitted
April 5, 2019
Operation
Air carrier
Aircraft
N1489A
Make and model
Boeing 76731K
Aircraft serial
27206
Aircraft time
104,605 hours, 20,337 cycles
Engine
Ge CF680C2B6F
Part
Hmu
Part number
442634
Part serial
BEK0277
Condition
Malfunctioned
Location
Lt Engine
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING A SHALLOW ENROUTE DESCENT, THE STATUS MSG "L ENG CONTROL" APPEARED. AFTER LANDING "L ENG CONTROL" EICAS APPEARED. REPEAT WRITE UP.(<P>REMOVED AND REPLACED HMU IAW AMM 73-21-14. OPS AND LEAK CHECK GOOD AT THIS TIME. EICAS MESSAGE CLEARED.<BR /></P>)

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