# NTSB DEN06CA089: Cessna TU206G, N6134X, Alamosa, CO, June 14, 2006

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: June 14, 2006, 12:00 local (18:00 UTC)
- Place: Alamosa, CO
- Coordinates: 37.384723, -105.851387
- Nearby events: https://openairdocs.org/map.md?lat=37.3847&lon=-105.8514&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report October 3, 2006
- Report: Approved by Office Director
- Parties: FAA Flight Standards District Office
- NTSB case key (mKey): 63911
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN06CA089
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63911/pdf
- Page: https://openairdocs.org/ntsb/DEN06CA089

## Probable cause

the pilot's failure to maintain aircraft control during the landing. Contributing factors include the gusty winds, the crosswind, and the pilot exceeding the maximum demonstrated crosswind component for the airplane.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight encounter with weather, landing - flare/touchdown
  - weather condition - high wind (contributing factor)
  - weather condition - crosswind (contributing factor)
- Loss of control - in flight, landing - flare/touchdown
  - aircraft control - not maintained, pilot in command (cause)
  - crosswind component - exceeded, pilot in command (contributing factor)
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - runway

## Analysis

According to the pilot, he encountered a gust of wind during the landing flare to runway 20. The pilot stated that a gust brought the left wing up and he added power to recover and the airplane "straightened out." He stated that he reduced power to land and encountered a second gust of wind, bringing the left wing up again. The right wing impacted the runway and the airplane "ground looped," resulting in substantial damage. An examination of the airplane's systems revealed no anomalies. Reported winds were 240 degrees at 27 knots, gusting 36 knots. The crosswind component was calculated to be between 17 and 23 knots. According to the pilot operating handbook, the maximum demonstrated crosswind component for this airplane is 20 knots.

## Factual narrative

According to the accident report submitted by the pilot, he encountered a gust of wind during the landing flare to runway 20 (8,519 feet by 100 feet, asphalt). The pilot stated that a gust brought the left wing up and he added power to recover and the airplane "straightened out." He stated that he reduced power to land and encountered a second gust of wind, bringing the left wing up again. The right wing impacted the runway and the airplane "ground looped." The engine separated from the airplane, the right wing tip was crushed, and the left tire separated. An examination of the airplane's systems, conducted by the FAA Inspector, revealed no anomalies. The pilot did not report any problems with the airplane or its systems.

The closest official weather observation station was San Luis Valley regional Airport/Bergman field (ALS), Alamosa, Colorado. The routine aviation weather report (METAR) for ALS, issued at 1152, reported, winds, 240 degrees at 27 knots, gusting 36 knots; visibility, 10 statute miles; sky condition, clear; temperature 27 degrees Celsius (C); dewpoint, 01 degrees C; altimeter, 30.25 inches. The crosswind component was calculated to be between 17 and 23 knots. According to the Cessna Pilot Operating Handbook, the maximum demonstrated crosswind component for this airplane is 20 knots.

## Aircraft

- Registration: [N6134X](https://openairdocs.org/deregistered/N6134X-2018-03-27), registration cancelled 2018-03-27, S/N U20605826, built 1980 (OpenAirDocs)
- Reported make and model: Cessna TU206G
- Registry model: [Cessna TU206G](https://openairdocs.org/model/cessna-tu206g) (registry code 2073357) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: U20605826
- Airframe hours: 25579
- Engines: Teledyne Continental TSIO-520-M 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 1, 2005
- Departed: PVU, PROVO, UT
- Destination: ALS, ALAMOSA, CO
- Airport: ALS, San Luis Valley Regional/Bergm, runway 20, 8,519 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review April 1, 2003; seat: left; flight hours: 549 total, 121 in this make and model, 474 as pilot in command, 25 in the last 90 days, 16 in the last 30 days, 11 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 27 knots, gusting 36
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 34 °F
- Altimeter: 30.25 inHg
- Observed at: ALS, 1 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 20060614010919A](https://openairdocs.org/incident/20060614010919A), Jun 14, 2006: Cessna TU206G, Alamosa, CO, Substantial damage. (-23) Aircraft was attempting a landing on rwy 20 at als. Winds were 32 gusting to 45 from 210 to 240 degrees. Pilot encountered a gust as he began to flare,…

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.