SDR ALGA100035

Service difficulty report · Gearbox · Skrsky S76A

Difficulty date
February 26, 2005
Submitted
April 4, 2005
Operation
Air carrier
Aircraft
N522AL
Make and model
Skrsky S76A
Aircraft serial
760236
Aircraft time
10,776 hours
Engine
Allsn 250C30S
Engine time
19,644 hours
Part
Gearbox
Part number
23077527
Part serial
4G15709
Condition
Making Metal
Location
Main Rotor
Part time
395 hours
Stage of operation
NR
How discovered
9
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

FOUND METAL ON BOTH CHIP PLUGS. FOUND MAIN CAUSE TO BE PINION GEAR / REPAIRED G/BOX, REPLACED PINION GEAR,TORQUE METER GEAR,PTO GEARSHAFT.