ASN Wikibase Occurrence # 43236
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Date: | Wednesday 23 February 2000 |
Time: | 14:42 |
Type: | Aerotechnik L-13SEH Vivat |
Owner/operator: | Boston Gliders, Inc |
Registration: | N64RG |
MSN: | 930429 |
Total airframe hrs: | 789 hours |
Fatalities: | Fatalities: 1 / Occupants: 2 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Plymouth, MA -
United States of America
|
Phase: | Approach |
Nature: | Training |
Departure airport: | PYM |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:Prior to departure, the flight instructor told the pilot who was receiving his biennial flight review that it was windy and 'they should fly conservatively.' The flight instructor and pilot departed, and soared the motor glider 'in strong lift conditions' in the vicinity of the airport in the power-off configuration. Upon returning to the airport, the flight instructor decided to land in the power off configuration. The pilot delayed the turn to base. Upon turning base, the pilot was uncomfortable with the approach and released control of the motor glider to the flight instructor. The flight instructor then turned the motor glider directly toward the airport and 'very heavy sinking air' was encountered. The flight instructor prepared to land short of the asphalt runway on the grass, but was unable to maintain enough lift to clear the trees bordering the airport. The motor glider descended through the trees, sheared off a large section of the right wing, and came to rest on the right side partially inverted. The speed brake handle was found in the fully extended position. The right speed brake was extended, and the left speed brake was found retracted. The landing runway was 24, and the winds were from 220 degrees at 16 gusting to 23 knots. Examination of the motor glider revealed no mechanical deficiencies.
Probable Cause: the flight instructor's inadequate compensation for the wind conditions. A factor was the flight instructor's improper use of speed brakes and the strong gusty winds with downdrafts.
Sources:
NTSB:
https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X20495&key=1 Revision history:
Date/time | Contributor | Updates |
24-Oct-2008 10:30 |
ASN archive |
Added |
21-Dec-2016 19:24 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
12-Dec-2017 18:24 |
ASN Update Bot |
Updated [Operator, Departure airport, Source, Narrative] |
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