Service difficulty report · Blade · Bell 206B

Difficulty date
September 24, 2010
Submitted
March 15, 2011
Operation
Air carrier
Make and model
Bell 206B
Aircraft time
12,205 hours
Engine
Allsn 250C20B
Part
Blade
Condition
Broken
Location
Compressor
Part time
10,780 hours
Component
Compressor · Allsn
Component part number
6890550
Stage of operation
CL
How discovered
O
Nature of condition
R, T
Precautionary procedure
A

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

What was found

ENGINE FAILURE IN FLIGHT, PILOT SUCCESSFULLY AUTO ROTATED ACFT ONTO CREEK BED. NO DAMAGE TO AIRFRAME. COMPRESSOR CASE HALF HAD A HOLE IN THE SIDE. COMPRESSOR AND TURBINE ASSYS REMOVED FOR FURTHER INSP. INSP BEING CARRIED OUT LTD. WE HAVE BEEN INFORMED THAT A BLADE LET GO ON THE NR 3 COMPRESSOR WHEEL CAUSING SIGNIFICANT DAMAGE TO THE COMPRESSOR. FURTHER INVESTIGATIONS ON COMPRESSOR AND TURBINE ARE BEING PERFORMED AT THIS TIME TO DETERMINE WHY THE BLADE FAILED.

More about the Bell 206B