Service difficulty report · Gearbox · Snias AS350B2

Difficulty date
February 12, 2016
Submitted
April 22, 2016
Operation
General aviation
Make and model
Snias AS350B2
Aircraft time
7,386 hours
Engine
Lyc LTS101700D2
Part
Gearbox
Part number
350A32030004
Condition
Making Metal
Location
Main Rotor
Part time
7,370 hours
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
E

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

What was found

(CAN) METAL CONTAMINATION ON CHIP PLUG, ONLY 181.6 HRS SINCE O/H, GEARBOX ALMOST SEIZED ON WARM. NOTE: OIL PUMP IS PART OF THE MGB WHICH WAS O/H AT THE SAME TIME AS THE GEARBOX. THE MGB WILL BE SENT FOR A COMPLETE TEAR DOWN FOR A COMPLETED REPORT ANALYSIS. NOTE: THE EPICYCLIC WAS OK WHEN THE TRANSMISSION WAS SPLIT WITH THE M/R SHAFT ASSY.