Service difficulty report · Hmu · Saab 340B

Difficulty date
August 23, 2011
Submitted
August 23, 2011
Operation
Air carrier
Aircraft
N679PA
Make and model
Saab 340B
Aircraft serial
345
Aircraft time
35,307 hours, 33,504 cycles
Engine
Ge CT79B
Engine time
44,878 hours, 33,449 cycles
Part
Hmu
Part number
6068T72P22
Condition
Malfunctioned
Location
Nr 1 Engine
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

ERRATIC TRQ NR 1 ENGINE - TRQ MOTOR LOCKOUT FIXED PROBLEM. RETURNED TO ANC. MAINT REMOVED AND REPLACED THE HMU AND THE DECU.

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