ASN Wikibase Occurrence # 288771
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Date: | Sunday 30 October 2011 |
Time: | 15:20 LT |
Type: | Cessna 172K |
Owner/operator: | North Star Aviation |
Registration: | N7276G |
MSN: | 17258976 |
Year of manufacture: | 1970 |
Total airframe hrs: | 3553 hours |
Engine model: | Lycoming O-320 |
Fatalities: | Fatalities: 0 / Occupants: 3 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Florence, Montana -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Private |
Departure airport: | Missoula-Johnson-Bell Field, MT (MSO/KMSO) |
Destination airport: | Hamilton, MT (6S5) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:After a series of takeoffs and landings at several nearby airports, the pilot was returning to his home airport and descended to a low level to follow a river. The pilot reported that the conditions were turbulent for most of the day but that, during that low-altitude leg, the airplane seemed to perform abnormally. While still airborne, a passenger observed that the brake line that was attached to the right main landing gear strut was severed. As a result, the pilot conducted a precautionary landing at a nearby airport. The pilot and passengers observed multiple damage sites on the airplane but, since no one was present at that airport, they reboarded and departed for the home airport where they landed uneventfully.
A postaccident investigation revealed that the airplane struck and severed one of several electrical power lines that spanned the river. The wire height at mid river was about 30 to 40 feet above the water. The propeller, cowling, exhaust stack, right wing (multiple places), right wing strut, right main gear brake line, right landing gear wheel fairing, right fuselage, and vertical stabilizer were damaged by the wire strike, and the rear window was punctured. The pilot stated that he did not see any wires and that he was not aware of the wire strike until he examined the airplane after the precautionary landing. Neither the pilot nor the passengers incurred any injuries.
Probable Cause: The pilot's failure to maintain clearance from a power line during a low-level flight along a river. Contributing to the accident was the pilot's decision to fly at a low altitude.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | WPR12CA025 |
Status: | Investigation completed |
Duration: | 2 months |
Download report: | Final report |
|
Sources:
NTSB WPR12CA025
Location
Revision history:
Date/time | Contributor | Updates |
05-Oct-2022 05:06 |
ASN Update Bot |
Added |
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