SDR 2022F00075

Service difficulty report · Alternator · Hawbee 4000

Difficulty date
February 6, 2022
Submitted
February 8, 2022
Operation
General aviation
Aircraft
N58BL
Make and model
Hawbee 4000
Aircraft serial
258236
Aircraft time
6,184 hours, 4,953 cycles
Engine
Hnywl T5317AHNYWL
Engine time
6,010 hours, 4,684 cycles
Part
Alternator
Part number
BA028011
Part serial
1014
Condition
Damaged
Location
Right Engine
Part time
1 cycles
Stage of operation
TX
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

ALTERNATOR COOLING FAN ATTACHED TO DRIVE SHAFT SEIZED DURING TAXI CAUSING ALTERNATOR DRIVE SHAFT TO SHEAR AT SHEAR POINT ON ACCESSORY SPLINE. PROBLEM APPEARS TO BE TWO PINS PRESSED INTO COOLING FAN SHROUD WERE PRESSED IN TOO FAR DURING REASSEMBLY AT OVERHAUL. THE PINS CONTACTED FAN AND STOPPED/PREVENTED IT FROM ROTATING. 8130-3 ISSUED BY SOUTHWIND AVIATION AVIATION SUPPLY LLC 5700 N. ROCKWELL, BETHANY, OKLAHOMA 73008 (CERTIFICATE NUMBER: UO9R076Y) FORM TRACKING NUMBER: A49781; WORK ORDER/CONTRACT/INVOICE NUMBE: 49781; DATE: 05/NOV/2021