SDR ERAA093706

Service difficulty report · Quill Assy · Bell 412

Difficulty date
October 1, 2003
Submitted
March 29, 2004
Operation
Air carrier
Make and model
Bell 412
Part
Quill Assy
Part number
412040123101
Part serial
A678
Condition
Worn
Location
Transmission
Part time
4,959 hours
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

QUILL ASSY HAS VERTICAL PLAY IN SHAFT. SPACER SET DAMAGED FROM APPARENT BEARING ROTATION IN LINER OF SLEEVE. DISASSEMBLED, CLEANED AND VISUALLY INSPECTED ALL PARTS. CHECKED SHIMMING AND REASSEMBLED, TORQUED AND SAFTIED IAW BHT 412-CR, 0 CHAPTER 63 INSTALLING NEW SPACER SET, REPAIRED A SLEEVE ASSY AND ALL NEW O RINGS TSO 912-7.

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