ASN Wikibase Occurrence # 157677
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| Date: | Friday 19 July 2013 |
| Time: | 10:34 |
| Type: |  Air Tractor AT-802A |
| Owner/operator: | Milhon Air Inc |
| Registration: | N86BM |
| MSN: | 802A-0285 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 1018 hours |
| Engine model: | P&W Canada PT6A-65AG |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | East of Huntingburg Airport (KHNB), Huntingburg, IN -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Huntingburg, IN (HNB) |
| Huntingburg, IN (HNB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot conducted an aerial application flight over three fields for about an hour. Data recovered from the on-board GPS system, which recorded the airplane's flight path and altitude, revealed that the pilot flew two full circles over the first field before beginning aerial application to that field. According to the operator, these circles were consistent with routine "scouting" passes to look for obstructions. The data showed that no similar "scouting" circles were flown over either the second or third field. The aerial application on the third field was completed in a small valley, and the pilot appeared to be set up to spray on an easterly heading, into the sun. Power lines were oriented on a north-south heading at the east end of this field. The airplane struck one of these power lines and then continued briefly in an easterly direction before it impacted terrain.
Examination of the accident site revealed that a power line was severed from the impact and that pieces of the power line were among main wreckage. A postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal airplane operation. According to the operator, before a pilot sprays a field, it is normal to circle the field at least once to look for obstructions. Because the pilot did not adequately scout the area for potential hazards and was flying toward the sun, it is likely that he was not aware of the power lines and did not see them before impact.
Probable Cause: The pilot's failure to maintain clearance from a power line during an aerial application maneuver. Contributing to the accident was the pilot's failure to identify potential obstructions in the area before beginning low-altitude maneuvers.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=86BM
https://flightaware.com/photos/view/21873-6497539c695423a4a1dc72239c1ca897b2789146/aircrafttype/
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Jul-2013 16:23 | Geno | Added |
| 19-Jul-2013 19:20 | Geno | Updated [Time, Phase, Source, Narrative] |
| 24-Jul-2013 06:04 | Anon. | Updated [Time] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 08:49 | ASN Update Bot | Updated [Departure airport, Destination airport, Source, Narrative] |
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