ASN Wikibase Occurrence # 121544
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| Date: | Monday 4 April 2011 |
| Time: | 11:58 |
| Type: |  Cirrus SR22 GTS X G3 Turbo |
| Owner/operator: | Windy City Flyers |
| Registration: | N847C |
| MSN: | 3218 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 654 hours |
| Engine model: | Continental IO-550-N |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | South Bend, Indiana -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Wheeling, IL (PWK) |
| South Bend, IN (SBN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was performing a landing approach with a known, gusting crosswind present. A witness stated that the airplane was being “bounced around” by the wind gusts and that it “stalled and rolled to the left.” Another witness heard the accident airplane go to full power. The airplane was then in a 15- to 30-degree left bank with a nose-down attitude before it impacted the ground. The airplane’s left wing impacted the ground first, then the airplane cartwheeled one-half turn. A postaccident examination of the airplane revealed no preimpact airframe or engine anomalies that would have precluded normal operation of the airplane.
About 8 months before the accident, the airplane's annual inspection was completed, and 2 days later the airplane's recoverable data module (RDM) stopped recording data due to a failed transient voltage suppressor (TVS) and did not record data during the accident flight. The airplane underwent a 100-hour inspection about midway through the 8 month period, and the failed RDM was not detected at that time. The system does not provide a failure indication to the pilot, and there is no requirement during the 100-hour inspection to check the RDM. A likely cause of the TVS failure could have been electrical overstress: the airplane was tied down overnight, and lightning was present when the RDM stopped recording. A similar airplane sustained substantial lightning strike airframe and avionics damage while tied down and at least two other airplanes sustained lightning strikes at that time. An Air Force Research Lab report recommended that a “review of the system design be conducted to determine if a cockpit indicator could be installed to alert the pilot when data logging is not functioning."
Probable Cause: The pilot’s failure to maintain airplane control while on final approach with a gusting crosswind and the subsequent aerodynamic stall and spin during the attempted go-around.
Accident investigation:
 |
|
Sources:
NTSB
Location
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Apr-2011 11:21 | bijzets101 | Added |
| 05-Apr-2011 14:26 | harro | Updated [Source, Embed code] |
| 05-Apr-2011 20:41 | RobertMB | Updated [Aircraft type, Embed code] |
| 03-May-2011 07:26 | RobertMB | Updated [Time, Embed code, Narrative] |
| 03-May-2011 11:29 | gerard57 | Updated [Source, Embed code, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 16:49 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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