Service difficulty report · Brush Block · Pilats PC1245

Difficulty date
November 23, 2004
Submitted
January 5, 2005
Operation
General aviation
Make and model
Pilats PC1245
Aircraft time
643 hours
Engine
Pwa PT6A67B
Propeller
Hartzl HCE4A3D
Part
Brush Block
Part number
9789601091
Condition
Worn
Location
Nr 2 Generator
Component
Generator · Pilats
Component part number
524321215
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
H

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

What was found

(CAN) DURING CRUISE FLIGHT, GEN 2 LIGHT CAME ON. PILOT PULLED GEN 2 CIRCUIT BREAKER AND LANDED AT BASE. INVESTIGATION REVEALED A SLIGHT CONDUCTIVE PATH BETWEEN THE TWO BRUSHES WITH THE BRUSH BLOCK ASSY REMOVED BELIEVED TO BE CAUSED BY BRUSH BLOCK DUST. THE SLIP RING WAS ALSO FOUND TO BE VERY DIRTY. THE SLIP RING WAS CLEANED, A NEW BRUSH BLOCK ASSY INSTALLED AND THE AIRCRAFT RETURNED TO SERVICE.