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ASN Wikibase Occurrence # 142276
Last updated: 18 August 2020
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Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different
Hughes 369D
Owner/operator:Air 2 Llc
Registration: N500TN
C/n / msn: 590521D
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Location:Fall Branch, TN -   United States of America
Phase: En route
Departure airport:Knoxville, TN (DXX)
Destination airport:Blountville, TN (KTRI)
Investigating agency: NTSB
Prior to departure on a positioning flight, the pilot checked the weather and determined that visual meteorological conditions existed at both his departure and destination airports. However, while the pilot was following a highway in cruise flight at 400 feet above ground level, the ceiling rapidly became lower, and the pilot encountered instrument meteorological conditions. Moments later, while cruising at an airspeed of 65 knots, the pilot saw marker balls, which indicated that power lines were directly in front of the helicopter. The pilot lowered the collective and entered a right diving turn in order to avoid the wires, but one of the main rotor blades made contact. The rotor speed remained within limits, but the helicopter began to vibrate, so the pilot decided to land in a nearby field. Postaccident examination of the helicopter revealed that the main rotor blade that had made contact with the power line was substantially damaged.
Probable Cause: The pilot's improper decision to continue a visual flight into instrument meteorological conditions, which resulted in a wire strike.



Revision history:

03-Feb-2012 21:15 Geno Added
03-Feb-2012 21:38 RobertMB Updated [Date, Source, Narrative]
30-Sep-2016 15:40 Aerossurance Updated [Source, Narrative]
21-Dec-2016 19:26 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 17:37 ASN Update Bot Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]

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