Wirestrike Accident Glasair III N540WF, Wednesday 13 January 2010
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Date:Wednesday 13 January 2010
Type:Silhouette image of generic GLAS model; specific model in this crash may look slightly different    
Glasair III
Registration: N540WF
MSN: 001
Engine model:Lycoming IO-540-K1H5
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Near Christian Street, southwest of Waterbury-Oxford Airport, CT -   United States of America
Phase: Approach
Departure airport:Gaithersburg, MD (GAI)
Destination airport:Oxford, CT (OXC)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
During a visual approach, at dusk, to a runway with an operating precision approach path indicator (PAPI), the pilot flew well below the approach path and collided with power lines on the final approach leg of the traffic pattern. The pilot had accumulated a total of 7.2 hours of night flight experience and his most recent night flight was more than 4 years prior to the accident. The accident occurred 11 minutes after sunset and 20 minutes before the end of civil twilight. The darker lighting conditions would have required the pilot to rely more on approach aids such as the PAPI lights. Examination of the wreckage and data recovered from an engine instrument system did not reveal any preimpact mechanical malfunctions of the airplane.
Probable Cause: The pilot's failure to maintain a proper approach path during visual conditions at dusk, which resulted in an in-flight collision with power lines.

Accident investigation:
Investigating agency: NTSB
Report number: ERA10LA113
Status: Investigation completed
Duration: 1 year and 8 months
Download report: Final report




Revision history:

13-Jan-2010 18:29 RobertMB Added
13-Jan-2010 23:24 slowkid Updated [Aircraft type, Registration, Cn, Operator, Other fatalities]
14-Jan-2010 05:04 RobertMB Updated [Aircraft type, Source, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 15:19 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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