# NTSB CEN21LA342: Alexander Vagner Tango II, N910V, Childress, TX, July 28, 2021

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Class 4 · Limited · Final report
- Date: July 28, 2021, 11:30 local (16:30 UTC)
- Place: Childress, TX
- Coordinates: 34.433778, -100.288 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.4338&lon=-100.2880&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Central Region
- Parties: Flight Standards District Office
- NTSB case key (mKey): 103588
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN21LA342
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103588/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103588
- Page: https://openairdocs.org/ntsb/CEN21LA342

## Probable cause

The student pilot’s failure to maintain control while landing the gyroplane.

## Findings

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

- [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Alexander Vagner TANGO 2, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=05635OT), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md)
- [Performance/control parameters: lateral/bank control](https://openairdocs.org/ntsb-findings/01062023): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Alexander Vagner TANGO 2, 1 case](https://openairdocs.org/ntsb-findings/01062023/cases.md?model=05635OT), [All aircraft, 390 cases](https://openairdocs.org/ntsb-findings/01062023/cases.md)

## Sequence of events

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

- [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Alexander Vagner TANGO 2, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05635OT), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md)

## Analysis

The student pilot flew three normal traffic patterns in the gyroplane. During the fourth landing the gyroplane “began to tip to the left” and the student pilot was unable to regain control. The gyroplane subsequently impacted the runway, which resulted in substantial damage to the stabilizer, rudder, and main rotor. The student pilot reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation.

## Aircraft

- Registration: [N910V](https://openairdocs.org/deregistered/N910V-2023-09-07), registration cancelled 2023-09-07, S/N 000006, built 2017 (OpenAirDocs)
- Reported make and model: ALEXANDER VAGNER TANGO II
- Registry model: [Alexander Vagner TANGO 2](https://openairdocs.org/model/alexander-vagner-tango-2) (registry code 05635OT) (OpenAirDocs)
- Registry engine: [Yamaha ALL MDLS A/B](https://openairdocs.org/engine/yamaha-all-mdls-a-b) (registry code 80000, reciprocating) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Serial number: 000006
- Year built: 2017
- Airframe hours: 107
- Engines: Yamaha Vector Snowmobile 120 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, May 12, 2021, 9 hours before
- Departed: CDS, Childress, TX
- Airport: CDS, Childress Muni, runway 18/36, 5,949 × 75 ft, asphalt
- Equipment: None

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; injuries: minor; student; medical: sport pilot; seat: left; restraint: 4-point; flight hours: 45 total, 8 in this make and model, 8 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 8 knots
- Lowest ceiling: none
- Temperature: 88 °F, dew point 70 °F
- Altimeter: 30.11 inHg
- Observed at: KCDS
- METAR: KCDS 281553Z AUTO 17008KT FEW100 31/21 A3011 RMK AO2 SLP167 T03110206 $

## 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 20210728012079A](https://openairdocs.org/incident/20210728012079A), Jul 28, 2021: Alexander Vagner TANGO 2, Childress, TX, Substantial damage. On July 28, 2021, at 1129 CST, approximately, a 2017 Alexander Vagner tango 2 experimental amateur built gyro plane, bearing N910V, serial number 000006,…

## Docket (2 files)

The files NTSB released with the investigation on September 9, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103588. 2.1 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12613921&FileExtension=pdf&FileName=6120%20--_Redacted-Rel.pdf
- Photos of aircraft (item 2, PDF, 2 pages, 521 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12614505&FileExtension=pdf&FileName=Photos%20of%20Aircraft-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.

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