What was found
WHILE DOING AN INSP OF THE MAIN ROTOR BLADES, IT WAS FOUND THE CRACKS 4 PER BLADE WERE DEVELOPING ON THE L/E ABRASION STRIP. THIS OCCURED ON ALL 4 M/R BLADES THE REST OF THE PN 407015001137, SN BLADES ARE A-4093, A-4122.
- Difficulty date
- April 29, 2011
- Submitted
- September 9, 2011
- Operation
- Air carrier
- Make and model
- Bell 407
- Aircraft time
- 1,604 hours
- Engine
- Allsn 250C47B
- System (JASC)
- 6210 · Main Rotor Blades
- Part
- Blades
- Part number
- 407015001137
- Condition
- Cracked
- Location
- Main Rotor
- Part time
- 1,776 hours
- 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.