Service difficulty report · Crossbeam · Snias AS350B2

Difficulty date
May 22, 2002
Submitted
May 29, 2002
Operation
Air carrier
Aircraft
N5204Y
Make and model
Snias AS350B2
Aircraft serial
3101
Aircraft time
979 hours, 1,894 cycles
Engine
Tmeca ARRIEL1D1
Engine time
979 hours, 1,037 cycles
Part
Crossbeam
Part number
350A38021100
Condition
Grooved
Location
Main Rotor
Part time
979 hours, 1,894 cycles
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

DURING A 1000 HOUR INSPECTION, THE CROSS BEAM WAS FOUND TO HAVE ONE DELAMINATED FWD. RUBBER ISOLATOR, AND DAMAGE TO THE AFT LATERAL LAMINATED RUBBER ISOLATER MOUNTING AREA. THE DAMAGE WAS CAUSED BY THE RUBBER ISOLATOR LOSING TORQUE, AND ROTATING ON ITS MOUNTING AREA. THE DAMAGE WAS TO THE MOUNTING FACE AND THE INNER ISOLATOR MOUNTING AREA. THE DAMAGE WAS BEYOND REPAIR, THE CROSSBEAM HAD TO BE SCRAPPED.