What was found
VISUAL INSPECTION POSTFLIGHT REVEALED A LARGE CRACK ON THE TAILBOOM VERTICAL FIN SPAR.
- Difficulty date
- May 11, 2009
- Submitted
- May 12, 2009
- Operation
- Air carrier
- Aircraft
- N171MU
- Make and model
- Bolkms BK117A4
- Aircraft serial
- 7138
- Aircraft time
- 10,238 hours, 32,377 cycles
- System (JASC)
- 5302 · Rotorcraft Tail Boom
- Part
- Spar
- Part number
- 105304061
- Condition
- Cracked
- Location
- Tailboom
- Component
- Tailboom · Bolkms
- Component part number
- 11730052V003
- 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.