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ASN Wikibase Occurrence # 185005
Last updated: 18 July 2018
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Date:28-FEB-2016
Time:08:59
Type:Silhouette image of generic SR20 model; specific model in this crash may look slightly different
Cirrus SR20
Owner/operator:Private
Registration: N477TC
C/n / msn: 1378
Fatalities:Fatalities: 4 / Occupants: 4
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Near Navasota Municipal Airport (60R), Navasota, TX -   United States of America
Phase: Approach
Nature:Private
Departure airport:Navasota, TX (60R)
Destination airport:Navasota, TX (60R)
Investigating agency: NTSB
Narrative:
The flight instructor and the airplane owner, who did not hold a pilot certificate, were practicing takeoffs and landings in the airplane at an uncontrolled airport. Based on logbook records, this was most likely an instructional flight and the owner was most likely flying the airplane. Air traffic control radar and primary flight display data showed that they had performed two touch-and-go landings followed by two full stop landings before the accident. Shortly after taking off following the second full stop landing, while climbing through 550 ft mean sea level (msl) at an indicated airspeed of about 92 knots, the airplane entered a left bank and began to decelerate. The airplane began to descend, and the airspeed subsequently decreased below 75 knots before it began to increase. The airplane reached a 61 left-wing-down attitude at an airspeed of about 79 knots before entering a rapid roll to the right, through an inverted position. At about the same time, the airplane began a rapid pitch down, reaching a 69 nose-down attitude. The airplane briefly recovered to nearly wings level but again began to pitch down until the final recorded data point, which showed the airplane in a 65 nose-down and 45 right-wing-down attitude, at 268 ft msl, and 89 knots indicated airspeed. The airplane impacted terrain about 0.43 miles from the departure end of the runway.

Postaccident examination of the airplane did not reveal any mechanical malfunctions or failures that would have prevented normal operation. Calculations based on the airplane's weight at the time of the accident indicated that, at 1g with flaps up, the aerodynamic stall speed would have been 75 to 78 knots calibrated airspeed. The stall speed in a 60 turn (2 g) would have been 105 to 109 knots. Therefore, it is likely that the combination of a steep left bank and low airspeed resulted in an accelerated aerodynamic stall.

Probable Cause: The flight instructor's delayed remedial action to prevent a stall at an altitude that was too low to recover. Contributing to the accident was the owner/non-certificated pilot's failure to maintain control of the airplane, which resulted in an accelerated aerodynamic stall.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20160228X22433&key=1
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N477TC

https://flightaware.com/live/flight/N477TC/history/20160221/1615Z/60R/KDWH

Accident investigation:
cover
  
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 9 months
Download report: Final report


Revision history:

Date/timeContributorUpdates
28-Feb-2016 18:07 Geno Added
28-Feb-2016 18:07 Geno Updated [Aircraft type]
28-Feb-2016 18:47 harro Updated [Aircraft type]
28-Feb-2016 19:34 Geno Updated [Aircraft type, Source]
28-Feb-2016 19:46 Geno Updated [Registration, Cn, Operator, Phase, Departure airport, Destination airport, Source, Narrative]
29-Feb-2016 05:46 Geno Updated [Source, Damage, Narrative]
29-Feb-2016 07:12 jawad101 Updated [Time, Nature, Damage]
21-Dec-2016 19:30 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
16-Dec-2017 14:54 ASN Update Bot Updated [Time, Operator, Departure airport, Destination airport, Source, Narrative]
16-Dec-2017 17:06 harro Updated [Destination airport, Source, Narrative]

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