SDR QMLA2011020911028

Service difficulty report · Cotter Pin · Snias AS350B2

Difficulty date: February 9, 2011
Submitted: February 22, 2011
Operation: Air carrier
Aircraft: N125LN
Make and model: Snias AS350B2
Aircraft serial: 4145
Aircraft time: 1,999 hours, 5,958 cycles
Engine: Tmeca ARRIEL1D1
Engine time: 1,856 hours, 4,292 cycles
System (JASC): 7240 · Turbine Engine Combustion Section
Part: Cotter Pin
Condition: Missing
Location: Gas Generator
Part time: 1,486 hours
Component: Gas Generator · Tmeca
Component part number: 70BM035420
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 INSTALLATION OF MODULE 2/3, MECHANIC NOTICED THAT THE DEFLECTOR NUT COTTER PIN WAS NOT INSTALLED IN THE OVERHAULED MODULE. CHECKED OTHER MODULE 2/3 THAT WAS REMOVED FROM ACFT, AND FOUND THAT THIS COTTER PIN WAS MISSING FROM THAT MODULE AS WELL.