Service difficulty report · Hub · Doug MD900

Difficulty date
January 8, 2004
Submitted
January 8, 2004
Operation
General aviation
Aircraft
N3PD
Make and model
Doug MD900
Aircraft serial
9000085
Aircraft time
1,208 hours
Engine
Pwc PW207E
Part
Hub
Part number
900R2101006107
Part serial
0957650204
Condition
Cracked
Location
Main Rotor
Part time
435 hours
Component
Upper Assy · Doug
Component part number
900R1101000B119
Stage of operation
IN
How discovered
W
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

DURING ACCOMPLISHMENT OF A.D. 2002-10-05(MAIN ROTOR UPPER HUB INSPECTION)FOUND (6) OUT OF (10) UPPER FLANGE BOLT HOLES TO BE CRACKED. CRACKS RUN RADIALLY FROM BOLT HOLE TO INNER EDGE AS DEPICTED IN SB 900-072. PART TOTAL TIME: 435 HRS SINCE NEW. REPLACED UPPER HUB ASSY WITH NEW IAW MM.

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