Service difficulty report · Connector · Cessna 172R

Difficulty date
February 1, 2007
Submitted
May 1, 2007
Operation
General aviation
Make and model
Cessna 172R
Aircraft time
3,747 hours
Engine
Lyc IO360L2A
Propeller
Mcauly 1C235LFA
Part
Connector
Condition
Corroded
Location
Power Junction
Part time
3,758 hours
Stage of operation
NR
How discovered
9
Nature of condition
H
Precautionary procedure
O

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

What was found

(CAN) DURING A PREFLIGHT INSPECTION WHEN THE FLAPS WERE SELECTED TO LOWER A COMPLETE POWER FAILURE RESULTED. UPON INSPECTION BY THE AMO THE POWER JUNCTION BOX PLUG WAS FOUND CORRODED RESULTING IN PINS BREAKING WHEN PLUG WAS PULLED APART FOR INSPECTION. THIS PLUG FAILURE RESULTED IN A POOR CONTINUITY FROM THE MASTER SOLENOID AND THE MASTER SWITCH RESULTING IN A 12+ VOLTAGE LOSS AND THE HOMINOID FAILING TO ENGAGE. (TC NR 20070202017)

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