Service difficulty report · Inverter · Boeing 234

Difficulty date
September 12, 2013
Submitted
September 16, 2013
Operation
General aviation
Aircraft
N246CH
Make and model
Boeing 234
Aircraft serial
MJ017
Aircraft time
14,337 hours
Engine
Lyc AL5512
Part
Inverter
Part number
7079092230087202
Part serial
VARIOUS
Condition
Out Of Adjust
Location
Zone 200
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

OPERATOR HAS EXPERIENCED ISSUES WITH MALADJUSTED TORQUE INVERTER, SIGNAL CONDITIONERS, ALSO KNOWN AS RATIO DETECTOR POWER SUPPLY, RDPS, ASSOCIATED WITH THE ENGINE TORQUE INDICATING SYSTEM. THE FAULT IS ASSOCIATED WITH THE IMPROPER VOLTAGE OUTPUT FROM THE RDPS WHICH IS SET AT THE COMPONENT REPAIR STATION.

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