# NTSB CEN10CA439: Beers Tailwind 10, N375JX, Delta, CO, July 26, 2010

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: July 26, 2010, 12:30 local (18:30 UTC)
- Place: Delta, CO
- Coordinates: 38.786388, -108.063613 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.7864&lon=-108.0636&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Defining event: [Takeoff-rejected takeoff: Nose over/nose down](https://openairdocs.org/ntsb-events/096)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 20, 2010
- Report: Approved by Office Director
- NTSB office: Central Region
- Parties: FAA Flight Standards District Office
- NTSB case key (mKey): 76773
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN10CA439
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76773/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76773
- Page: https://openairdocs.org/ntsb/CEN10CA439

## Probable cause

A loss of control on the ground due to a malfunction of the right brake caliper.

## Findings

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

- [Aircraft](https://openairdocs.org/ntsb-findings/01020000): Aircraft › Aircraft systems · Malfunction (probable cause); cases with it: [Beers Richard B TAILWIND 10, 1 case](https://openairdocs.org/ntsb-findings/01020000/cases.md?model=05627ZQ), [All aircraft, 63 cases](https://openairdocs.org/ntsb-findings/01020000/cases.md)
- [Terrain: rough terrain](https://openairdocs.org/ntsb-findings/03021015): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Beers Richard B TAILWIND 10, 1 case](https://openairdocs.org/ntsb-findings/03021015/cases.md?model=05627ZQ), [All aircraft, 442 cases](https://openairdocs.org/ntsb-findings/03021015/cases.md)

## Sequence of events

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

- [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230); cases with it: [Beers Richard B TAILWIND 10, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05627ZQ), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md)
- [Takeoff-rejected takeoff: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Beers Richard B TAILWIND 10, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=05627ZQ), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md)

## Analysis

As the pilot reached 40 knots on his takeoff roll, the airplane started to drift off the left side of the runway. The pilot thought that he had encountered a quartering tailwind and tried to correct with right brake. The airplane then veered to the right and the pilot applied left brake and rudder. This had no effect, so the pilot reduced power. The wheels sank into soft ground and the airplane nosed over. Postaccident inspection revealed heavy black marks from both the left and right tires. The right wheel would not turn even with the brake line removed. When the brake caliper was removed, the wheel rotated freely. The caliper then appeared to function normally.

## Factual narrative

As the pilot reached 40 knots on his takeoff roll, the airplane started to drift off the left side of the runway. The pilot thought that he had encountered a quartering tailwind and tried to correct with right brake. The airplane then veered to the right and the pilot applied left brake and rudder. This had no effect, so the pilot reduced power. The wheels sank into soft ground and the airplane nosed over. Postaccident inspection revealed heavy black marks from both the left and right tires. The right wheel would not turn even with the brake line removed. When the brake caliper was removed, the wheel rotated freely. The caliper then appeared to function normally.

## Aircraft

- Registration: [N375JX](https://openairdocs.org/deregistered/N375JX-2020-12-05), registration cancelled 2020-12-05, S/N RB 001, built 2009 (OpenAirDocs)
- Reported make and model: Beers Tailwind 10
- Registry model: [Beers Richard B TAILWIND 10](https://openairdocs.org/model/beers-richard-b-tailwind-10) (registry code 05627ZQ) (OpenAirDocs)
- Registry engine: [Lycoming O-320-B2C](https://openairdocs.org/engine/lycoming-o-320-b2c) (registry code 42139, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: RB 001
- Airframe hours: 6
- Engines: Lycoming O-320 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Richard B. Beers
- Registered owner: Richard B. Beers
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Condition, July 25, 2010, 1 hours before
- Departed: AJZ, Delta, CO
- Destination: 7V2, Paonia, CO
- Flight plan: Unknown
- Airport: AJZ, Blake Field Airport, runway 03, 5,598 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; injuries: none; commercial; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review June 15, 2010; seat: left; flight hours: 210 total, 5 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: variable at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 48 °F
- Altimeter: 30.12 inHg
- Observed at: MTJ

## 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 20100726040479A](https://openairdocs.org/incident/20100726040479A), Jul 26, 2010: Beers Richa TAILWIND 10, Delta, CO, Substantial damage. Transcribed from written statement received from pilot on 07/27/2010:pilot departed runway 3 at Delta airport(ajz) at approximately 1230 Mt. Upon reaching 40…

## Docket (7 files)

The files NTSB released with the investigation on August 4, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76773. 3.5 MB in all.

- NTSB Form 6120.1-2, Pilot-Operator Aircraft Accident Report (item 1, .PDF, 401 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334245&FileExtension=.PDF&FileName=NTSB%20Form%206120.1-2,%20Pilot-Operator%20Aircraft%20Accident%20Report-Redacted.PDF
- Maps and Charts of Accident Area (item 2, .PDF, 2.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334051&FileExtension=.PDF&FileName=Maps%20and%20Charts%20of%20Accident%20Area-Master.PDF
- Weather Reports and Records (item 3, .PDF, 20 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334049&FileExtension=.PDF&FileName=Weather%20Reports%20and%20Records-Master.PDF
- Photo 1. Tire marks going off left side of runway 03. (item 4, .PDF, 45 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334055&FileExtension=.PDF&FileName=Photo%201.%20Tire%20marks%20going%20off%20left%20side%20of%20runway%2003.-Master.PDF
- Photo 2. Tire marks in the dirt. (item 5, .PDF, 83 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334056&FileExtension=.PDF&FileName=Photo%202.%20Tire%20marks%20in%20the%20dirt.-Master.PDF
- Photo 3. N375JX at accident site. Note crushed vertical stabilizer. (item 6, .PDF, 76 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334057&FileExtension=.PDF&FileName=Photo%203.%20N375JX%20at%20accident%20site.%20Note%20crushed%20vertical%20stabilizer.-Master.PDF
- Photo 4. N375JX after being righted. Note broken wing spar. (item 7, .PDF, 92 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334059&FileExtension=.PDF&FileName=Photo%204.%20N375JX%20after%20being%20righted.%20Note%20broken%20wing%20spar.-Master.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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