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NTSB Report
November 2, 2007 · Smith Miniplane DSA-1 · N58MB
Alburgh, VT
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
November 2, 2007
Injury Outcomes
1 injury (1 serious injury)
Location
Alburgh, VT
Aircraft
Smith Miniplane DSA-1
Tail Number
N58MB
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
MIA08CA011
According to the pilot, he "left Franklin County State Airport (FSO) at 16:00. Flew west from FSO to practice aerobatic maneuvers. After fifteen (15) minutes of aerobatic practice [he] flew to Northern Lights airfield with [the] intention to land and observe first flight of recently assembled Steerman biplane from the air. Upon observing that the Steerman biplane was not out on the airfield ramp, [he] decided to fly west of [the] field for more aerobatic practice. After 10 minutes of aerobatic practice proper altitude diminished, and during inverted flight and while rolling to upright, [the] airplane "dished out", losing altitude and heading. As a result, [the] right wing struck tree tops and separated from [the] airplane. [The] airplane rolled and tumbled, which resulted in the left wing departing as well. [The] airplane then impacted the ground in an inverted position, bounced approximately seventy five (75) feet, impacted the ground also in an inverted position, and rolled against the tree line.
NTSB Probable Cause
The pilot's failure to maintain control of the airplane during aerobatic maneuvers which resulted in a loss of control and in-flight collision with trees.
Full Narrative
According to the pilot, he "left Franklin County State Airport (FSO) at 16:00. Flew west from FSO to practice aerobatic maneuvers. After fifteen (15) minutes of aerobatic practice [he] flew to Northern Lights airfield with [the] intention to land and observe first flight of recently assembled biplane from the air. Upon observing that the biplane was not out on the airfield ramp, [he] decided to fly west of [the] field for more aerobatic practice. After 10 minutes of aerobatic practice proper altitude diminished, and during inverted flight and while rolling to upright, [the] airplane "dished out", losing altitude and heading. As a result, [the] right wing struck tree tops and separated from [the] airplane. [The] airplane rolled and tumbled, which resulted in the left wing departing as well. [The] airplane then impacted the ground in an inverted position, bounced approximately seventy five (75) feet, impacted the ground also in an inverted position, and rolled against the tree line."
Flight
Event TypeAccident
Event Time17:00 EDT
Nearest AirportNorthern Lights (0nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSmith Miniplane DSA-1
Tail NumberN58MB
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · AEIO-320-E1B · Reciprocating · 150
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 33 · Third Class · Serious
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point55 / 34 C
Altimeter29.97 inHg
Observation Time16:50
Weather SourceWFAC