Service difficulty report · Gearbox · Hughes 369D

Difficulty date
October 21, 2003
Submitted
March 1, 2004
Operation
General aviation
Make and model
Hughes 369D
Engine
Allsn 250C20B
Part
Gearbox
Part number
369D25400
Part serial
HD1007
Condition
Damaged
Location
Tail Rotor
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) UNIT RECEIVED AFTER REPORT OF METAL GENERATION (UNIT INSPECTED AND REPORTED NO DEFECTS AND RETURNED). CUSTOMER WAS NOT PLEASED AS THEY HAVE REPORTED METAL GEN. IN THIS UNIT 5 TIMES PREVIOUS GEARBOX WAS NOT INSTALLED ON A/C IT WAS SHIPPED TO OUR FACILITY FOR A 2ND OPINION. PICTURES WERE TAKEN AT DISASSEMBLY AND THE FOLLOWING WAS FOUND: BOTH I/P AND O/P SPACER WERE DAMAGED FROM SPINNING, PREVIOUS REMOVALS, THE LARGE I/P BEARING WAS PITTED. PARTS REPLACED WERE SHOWN TO AIRWORTHINESS INSPECTOR.