ASN Wikibase Occurrence # 203631
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| Date: | Friday 29 December 2017 |
| Time: | 14:41 |
| Type: |  Cessna 172M Skyhawk |
| Owner/operator: | Private |
| Registration: | N4395R |
| MSN: | 17263145 |
| Year of manufacture: | 1974 |
| Engine model: | Lycoming O-320-E2D |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Great Salt lake, Promontory Point area, Box Elder County, Utah -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Ogden, UT (OGD) |
| Ogden, UT (OGD) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot and private pilot-rated passenger departed on a local flight in day visual meteorological conditions and climbed to a peak altitude about 2,370 ft above ground level. The airplane then entered a gradual, wings-level descent during which it began to fly over a large lake. The airplane impacted the water and subsequently sank.
The airplane was mostly intact and exhibited no evidence of mechanical failures or anomalies that would have precluded normal operation. Given the condition of the airplane, flight track, altitude data, and the proximity to land, it is likely that the pilot intentionally descended the airplane to low altitude over the lake. It is also likely that the lake exhibited a glassy surface due to low wind conditions about the time of the accident, which would have reduced depth perception and made it difficult for the pilot to judge the airplane's height above the water. Additionally, toxicology of the pilot revealed the presence of three different impairing medications. It is likely that he was experiencing combined adverse effects of these three central nervous system depressants, which contributed to his failure to maintain clearance from the water while performing low-altitude flight.
Probable Cause: The pilot's failure to maintain clearance from the water while flying over a lake with glassy surface conditions. Contributing to the accident was the pilot's use of three impairing medications.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N4395R
History of this aircraft
Other occurrences involving this aircraft
| 1 July 1997 | N4395R | Hill Flying Club | 0 | Unknown, UT | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-Dec-2017 12:55 | gerard57 | Added |
| 31-Dec-2017 13:09 | Aerossurance | Updated [Time, Location] |
| 31-Dec-2017 13:28 | DynoDon | Updated [Time, Operator, Location] |
| 31-Dec-2017 17:06 | Geno | Updated [Time, Aircraft type, Cn, Location, Departure airport, Destination airport, Source] |
| 08-Jan-2018 10:21 | gerard57 | Updated [Total fatalities, Source, Narrative] |
| 14-Jan-2018 02:09 | Geno | Updated [Source, Damage, Narrative] |
| 20-Mar-2018 17:48 | rvargast17 | Updated [Damage] |
| 22-May-2020 09:26 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Damage, Narrative, Accident report, ] |
Corrections or additions? ... Edit this accident description
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