SDR 97ZZZX3555

Service difficulty report · Fan Wheel · Robsin R22BETA

Difficulty date
April 30, 1997
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N4033S
Make and model
Robsin R22BETA
Aircraft serial
1501
Part
Fan Wheel
Part number
B1741
Condition
Cracked
Location
Cooling Fan
Part time
100 hours
Stage of operation
IN
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

CRACKS FOUND DURING 100-HOUR INSPECTION OF AIRCRAFT IN FAN WHEEL ASSEMBLY, SECOND FAN WHEEL INSTALLED SINCE AIRCRAFT REBUILT BY FACTORY. FAN WAS BALANCED AT EACH INSTALLATION YET CONTINUED TO CRACK. TOTAL AIRCRAFT TIME SINCE REBUILT, 499.0 HOURS.