Service difficulty report · Alternator · Robsin R44

Difficulty date
August 22, 2005
Submitted
September 1, 2005
Operation
General aviation
Make and model
Robsin R44
Aircraft time
1,369 hours
Engine
Lyc O540F1B5
Part
Alternator
Part number
ALX8421LS
Condition
Failed
Location
Engine
Stage of operation
IN
How discovered
V
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

(CAN) TWO BLADES LET GO ON THE COOLING FAN OF THE ALTERNATOR. PILOT DISCOVERED THIS DURING HIS DAILY INSPECTION. ONE OF THE BLADES WAS LODGED IN THE LOWER ENGINE COWL. THE SECOND BLADE WAS NOT FOUND. NO DAMAGE WAS FOUND ON ANY OTHER AREA OF THE AIRCRAFT.