CIRRUS DESIGN CORP SR22 near Danbury, CT — 2011-10-17
- Date
- 2011-10-17
- Location
- Danbury, CT, USA
- Airport
- DXR
- Aircraft
- CIRRUS DESIGN CORP SR22
- Registration
- N438CP
- Category
- Airplane
- Highest injury
- Fatal
- Fatalities
- 1
- Phase of flight
- Approach
Probable cause
The pilot did not maintain clearance from a lighted tower during final approach in night visual conditions.
NTSB narrative
While on final approach in night visual conditions, the airplane struck a lighted 100-foot-tall hazard beacon tower. The purpose of the hazard beacon tower was to alert pilots to an area of higher terrain (a hill) prior to the runway. The tower was located about 3/4 mile from the runway threshold, and its top was 750 feet mean sea level (msl), which was 292 feet above the airport elevation of 458 feet msl. Two flashing red lights located at the top of the tower were operating at the time of impact. Additionally, the runway had a displaced threshold of 734 feet. To strike the tower, the pilot had to fly a lower-than-standard approach. Further, the pilot could have altered course left or right to clear the tower. Examination of the wreckage and the airplane’s non-volatile memory did not reveal any preimpact mechanical malfunctions. There was no record of the pilot previously flying to the destination airport.
Analysis
- Primary failure mode
- Controlled flight into terrain
- First missed decision gate
- Pilot could have aborted the approach upon visual contact with the tower.
NTSB coding
Evidence available
- ATC audio
- ADS-B / radar
- Photos
- 25 docket documents
Docket documents25
- ATC Transcriptsatc
- Evidence Control Formform
- Release of Aircraft Wreckage, NTSB Form 6120.15form
- Interview Summaryinterview
- Statement of Party Representatives to NTSB Investigationinterview
- Correspondence From CSC DUATSother
- Correspondence From Lockheed Martinother
- Exceprts From Pilot Logbookother
- Excerpt From Airframe Logbookother
- Excerpt From Engine Logbookother
- GPS Plotother
- Shelf Item: Audio Recording of Communications Between N438CP and DXR Towerother
- Photo: Enginephotos
- Photo: Inboard Right Wingphotos
- Photo: Main Wreckagephotos
- Photo: Obstruction Towerphotos
- Photo: Outboard Right Wingphotos
- Photo: Pieces of Red Lensephotos
- Photo: Propeller Hubphotos
- Radar Plot With GPS Plot Overlayradar
- Police Reportreport
- Recoverable Data Module Factual Report (with 8 embedded figures)report
- Recoverable Data Module Factual Report Attachment 1 - Accident Flight Tabular Datareport
- Toxicological Reportreport
- Weather Reportreport
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