Service difficulty report · Starter · Lancar LC40550FG

Difficulty date
June 20, 2011
Submitted
July 4, 2011
Operation
General aviation
Aircraft
N37BA
Make and model
Lancar LC40550FG
Aircraft serial
40020
Aircraft time
1,019 hours
Engine
Cont IO550N
Engine time
1,019 hours
Propeller
Hartzl PHCJ3YF1
Part
Starter
Part number
6462382
Part serial
F080107
Condition
Shorted
Location
Engine
Part time
1,019 hours
Stage of operation
TX
How discovered
O
Nature of condition
B
Precautionary procedure
H

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

What was found

LAST NOVEMBER 2010, INSTALLED A REBUILT STARTER ADAPTER. MFG’S WARRANTEE REQUIRED A O/H STARTER, SO I SENT MY STARTER FOR OVERHAUL. LAST WEEK, ON START, VOLTAGE WAS OK BUT THE PROP TURNED ABOUT 10 DEGREES & STOPPED. THEN SMELLED A BURNING ODOR, COULD NOT SHUT OF THE BATTERY. THE BURNING ODOR GOT STRONGER, REMOVED THE COWLING & COULD NOT TOUCH THE BATTERY BOX DUE TO HIGH TEMPT. WITH GLOVES, DISCONNECTED THE BATTERY. THE STARTER HAD A SHORT IN THE FIELD COILS. THERE IS NO PROTECTION BETWEEN THE STARTER & BATTERY SO THE STARTER & BATTERY SOLENOID/RELAY STUCK CLOSED, COULD NOT SHUTOFF THE BATTERY WITH THE BATTERY SWITCH. OVERHAULED STATER FAILED AFTER 44 STARTS. VERY DANGEROUS DUE TO A FIRE HAZARD.