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ASN Wikibase Occurrence # 196833
Last updated: 16 July 2018
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Date:23-JUL-2017
Time:17:15
Type:Silhouette image of generic C150 model; specific model in this crash may look slightly different
Cessna 150F
Owner/operator:Private
Registration: N8661S
C/n / msn: 15061961
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Lake D'Arbonne, Union Parish, LA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:Farmerville, LA (F87)
Destination airport:Farmerville, LA (F87)
Investigating agency: NTSB
Narrative:
While on a personal flight, the airline transport pilot made several low passes over a lake in front of a friend's house. The friend and two other witnesses reported that, on its last pass, the airplane was flying at a low altitude when it pitched down slightly, impacted the surface of the lake, nosed over, and sank. The friend reported hearing the engine "sputter" followed by an increase in power before the impact, and one of the other witnesses reported that the engine was running throughout the low pass.

A postaccident examination of the wreckage did not find any preimpact anomalies that would have precluded normal operation of the airplane. Although the temperature and dew point were conducive to serious icing at glide power, the witness observations and forward bending of the propeller blades were consistent with the engine operating at cruise or climb power at impact.

A portable GPS unit found in the wreckage did not contain any data about the accident flight. However, the GPS unit did record data consistent with previous flights where an airplane flew near the accident location. Additionally, one witness stated that the pilot was friends with a neighbor and had conducted numerous low passes over the lake during the previous 4 years.

Probable Cause: The pilot's failure to maintain clearance from the lake during a low-level maneuver.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20170724X15957&key=1
https://www.google.com/maps/@?dg=dbrw&newdg=1/Lake+D\'Arbonne+State+Park,+3628+Par+Rd+4410,+Farmerville,+LA+71241/@32.7672688,-92.4935752,17z/data=!3m1!1e3!4m2!3m1!1s0x8631e18eae35254b:0x18e865ecdfc70e24?hl=en-us
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=8661S

Accident investigation:
cover
  
Investigating agency: NTSB
Status: Investigation completed
Duration: 9 months
Download report: Final report


Images:


Photo: NTSB

Revision history:

Date/timeContributorUpdates
24-Jul-2017 01:08 Geno Added
24-Jul-2017 06:25 Iceman 29 Updated [Source, Narrative]
24-Jul-2017 19:00 Geno Updated [Aircraft type, Operator, Phase, Source]
25-Jul-2017 15:46 Geno Updated [Aircraft type, Registration, Cn, Source]
10-Aug-2017 17:21 shenoka Updated [Source]
01-May-2018 13:44 ASN Update Bot Updated [Time, Operator, Nature, Departure airport, Destination airport, Source, Damage, Narrative]
01-May-2018 14:00 harro Updated [Source, Narrative, Photo, ]

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