BELL HELICOPTER TEXTRON CANADA 206 near Hibbing, MN — 2023-08-27
- Date
- 2023-08-27
- Location
- Hibbing, MN, USA
- Aircraft
- BELL HELICOPTER TEXTRON CANADA 206
- Registration
- N19BH
- Category
- Helicopter
- Highest injury
- None
- Fatalities
- 0
Probable cause
The ground crew’s failure to secure the backpack at the landing zone (LZ), that resulted in the tail rotor impacting the backpack during the landing. Contributing to the accident was the pilot’s inadequate selection of an area at the LZ, the lack of awareness of the backpack at the LZ, and the absence of communication between the pilot and the ground crew during the landing.
Contributing factors
Contributing to the accident was the pilot’s inadequate selection of an area at the LZ, the lack of awareness of the backpack at the LZ, and the absence of communication between the pilot and the ground crew during the landing.
NTSB narrative
The helicopter was operating at a remote, unimproved landing zone (LZ) with a ground crew consisting of firefighters. They were conducting aerial firefighting training with an external load consisting of a 50 ft longline and a water bucket. The LZ consisted of about 2.5 ft tall prairie grass, with the tail of the helicopter going up slope. During the landing to the LZ, the tail rotor impacted a backpack on the ground. The helicopter landed upright and the pilot shutdown the helicopter. The pilot performed a self-assessment of the damage sustained to the tail rotor blades and then flew the helicopter back to the airtanker base with the ground crew onboard. The helicopter sustained substantial damage to both tail rotor blades and the tail rotor hub. The pilot reported there were no preimpact mechanical malfunctions or failures with the airframe or the engine that would have precluded normal operation. The pilot was in radio contact with the ground crew during the training. However, during the landing, there was no communication between the ground crew and the pilot either via radio or hand signal. The orange-colored backpack was owned and was used by the ground crew. According to the operator, the pilot and the ground crew had worked together previously conducting aerial firefighting operations and the pilot had landed to the LZ several times in the past.
NTSB coding
Evidence available
- Photos
- 13 docket documents
Docket documents13
- BELL 206 SERIES - SLOPE LIMITATIONS INFORMATIONform
- BRAINERD HELICOPTER SERVICE - DAMAGE ASSESSMENT INFORMATIONform
- LANDING ZONE - INFORMATIONform
- PILOT/OPERATOR AIRCRAFT ACCIDENT REPORT, NTSB FORM 6120.1form
- MINNESOTA DEPARTMENT OF NATURAL RESOURCES - STATEMENTSinterview
- BELL 206 L-4 RFM EXCERPT - DESCENT AND LANDINGother
- BRAINERD HELICOPTER SERVICE - ADDITIONAL QUESTIONSother
- BRAINERD HELICOPTER SERVICE - FLIGHT RISK ASSESSMENT TOOLother
- LANDING ZONE - EXEMPLAR MARKING TAPEother
- MINNESOTA DEPARTMENT OF NATURAL RESOURCES - AVIATION PROJECT PLANother
- NTSB - SAFETY ALERT SA-057 (HELICOPTER LANDING SITES - FREE FROM DEBRIS)other
- ACCIDENT PHOTOGRAPHSphotos
- BRAINERD HELICOPTER SERVICE - ACCIDENT INVESTIGATION REPORTreport
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