# NTSB ERA20CA294: Socata TB200, N156BB, Simsbury, CT, August 22, 2020

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Data collection · Final report
- Date: August 22, 2020, 13:50 local (17:50 UTC)
- Place: Simsbury, CT
- Coordinates: 41.915832, -72.776664 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.9158&lon=-72.7767&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Defining event: [Takeoff-rejected takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Eastern Region Aviation
- Parties: FAA
- NTSB case key (mKey): 101846
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA20CA294
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101846/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101846
- Page: https://openairdocs.org/ntsb/ERA20CA294

## Probable cause

A runway excursion following an aborted takeoff in tailwind conditions.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Socata TB200, 1 case](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=8680750), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md)
- [Object/animal/substance: tree(s)](https://openairdocs.org/ntsb-findings/03022020): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Socata TB200, 1 case](https://openairdocs.org/ntsb-findings/03022020/cases.md?model=8680750), [All aircraft, 933 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Takeoff-rejected takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Socata TB200, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=8680750), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md)

## Analysis

Prior to departing on the local flight, the pilot noted that the wind was calm and favoring one runway. He then back-taxied the airplane along the 2,205-ft-long runway for the departure. After initiating the takeoff roll, and nearing the mid-field point, the pilot noted that the windsock there had changed direction and that a tailwind was now present. The pilot then realized the airplane had not gained enough airspeed and aborted the takeoff. As the airplane approached the end of the runway, the pilot turned the airplane right to avoid a road, and it continued off the runway and eventually struck trees. The airplane’s right wing was substantially damaged. The pilot reported that there were no mechanical malfunctions or failures of the airplane that would have precluded normal operation.

## Aircraft

- Registration: [N156BB](https://openairdocs.org/deregistered/N156BB-2022-07-30), registration cancelled 2022-07-30, S/N 1375, built 1992 (OpenAirDocs)
- Reported make and model: Socata TB200 (XL)
- Registry model: [Socata TB200](https://openairdocs.org/model/socata-tb200) (registry code 8680750) (OpenAirDocs)
- Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1375
- Year built: 1992
- Airframe hours: 4710
- Engines: Lycoming IO-360 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 1, 2020, 159 hours before
- Departed: 4B9, Simsbury, CT
- Destination: 4B9, Simsbury, CT
- Airport: 4B9, Simsbury, runway 03, 2,205 × 50 ft, asphalt
- Equipment: Stall warning system, Auto-pilot, ADS-B

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review February 16, 2020; seat: left; restraint: 3-point; flight hours: 281.8 total, 38.7 in this make and model, 229.6 as pilot in command, 52.2 in the last 90 days, 14.6 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 12 knots, gusting 23
- Visibility: 10 statute miles
- Temperature: 91 °F, dew point 55 °F
- Altimeter: 29.88 inHg
- Observed at: KBDL, 4 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20200822009099A](https://openairdocs.org/incident/20200822009099A), Aug 22, 2020: Socata TB200, Simsbury, CT, Substantial damage. On August 22, 2020 at approximately 1338 pm, N156BB, a 1992 Socata TB200, s/n 1375, piloted by [privacy data omitted], certificate [privacy data omitted], and…

## Docket (4 files)

The files NTSB released with the investigation on April 19, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101846. 14.6 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 9.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10119952&FileExtension=pdf&FileName=6120.1_Redacted-Rel.pdf
- Memorandum for record - telephone interview, pilot (item 2, PDF, 1 page, 52 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10119387&FileExtension=pdf&FileName=Record%20of%20Conversation%20ERA20LA294-Rel.pdf
- Witness statements (item 3, PDF, 3 pages, 573 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10120247&FileExtension=pdf&FileName=Witness%20observation%20of%20N156BB_Redacted-Rel.pdf
- Investigative photos (item 4, PDF, 4 pages, 4.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10120081&FileExtension=pdf&FileName=investigative%20Photo%27s-Rel.pdf

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.