Service difficulty report · Terminal Block · Robsin R22BETAII

Difficulty date
May 1, 2014
Submitted
May 1, 2014
Operation
General aviation
Aircraft
N473A
Make and model
Robsin R22BETAII
Aircraft serial
2578
Aircraft time
5,842 hours
Engine
Lyc O360J2A
Engine time
1,290 hours
Part
Terminal Block
Part number
ALY8520LS
Part serial
HN041535
Condition
Melted
Location
Alternator
Part time
7 hours
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ALTERNATOR FAILED AFTER TWO DAYS AND SEVEN HOURS OF USE. FOUND POWER OUTPUT POST SPACER MELTED. SAME PROBLEM FOUND TWO DAYS PREVIOUS ON ALTERNATOR WITH 32.7 HOURS OF USE. OUTPUT CABLE TO ACFT WAS FOUND ATTACHED WITH PROPER TORQUE TO POST BOTH TIMES. BOTH ALTERNATORS, POST APPEARS TO BE MADE FROM WHITE PLASTIC MATERIAL INSTEAD OF MORE HEAT RESISTANT NYLON OR OTHER MATERIAL.