ASN Wikibase Occurrence # 228879
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| Date: | Saturday 7 September 2019 |
| Time: | 16:00 LT |
| Type: |  SIAI Marchetti SM-1019 |
| Owner/operator: | Pacific Coast Air Museum |
| Registration: | N16XC |
| MSN: | 045 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 1639 hours |
| Engine model: | Allison 250-B15G |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Clear Lake, Lakeport, CA -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Lakeport, CA |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot of the float-equipped airplane reported that, while taking off from a lake, the airplane accelerated, became airborne and that, about 40 ft above the water, he retracted the flaps. The airplane pitched down, and the left wing dropped. He attempted to correct to no avail, and the airplane impacted the water.
The airplane sustained substantial damage to the fuselage, empennage, and both wings.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. He added that he believed P factor caused the left roll because the airplane aerodynamically stalled and would not correct despite his attempts to do so. He also stated that he had accrued 5 hours in the airplane make and model, 2 hours of which occurred in the preceding 30 days.
The pilot reported that it was a very windy, gusty day and that the wind was variable. An automated weather observation station located 15 miles west of the accident site reported that, about the time of the accident, the wind was from 300° at 14 knots, gusting to 20 knots. The airplane was departing to the south.
Probable Cause: The pilot's exceedance of the airplane's critical angle of attack during takeoff in gusting, variable wind conditions, which resulted in a loss of airplane control and subsequent impact with water.
Accident investigation:
 |
|
Sources:
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=16XC
NTSB GAA19CA528
History of this aircraft
Other occurrences involving this aircraft
| 24 April 2009 | N391RV | Private | 0 | Novato, California | |
sub |
| Runway excursion | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Sep-2019 22:14 | Geno | Added |
| 27-Mar-2021 07:38 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
| 27-Mar-2021 08:17 | harro | Updated [Destination airport, Source, Narrative] |
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