# NTSB CEN11CA564: Beech 35-C33, N12CA, Rockwall, TX, August 11, 2011 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 11, 2011, 16:00 local (21:00 UTC) - Place: Rockwall, TX - Coordinates: 32.924999, -96.434448 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=32.9250&lon=-96.4344&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 3, 2011 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA/FSDO - NTSB case key (mKey): 81461 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN11CA564 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/81461/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=81461 - Page: https://openairdocs.org/ntsb/CEN11CA564 ## Probable cause The pilot's loss of control while landing with a tailwind due to his misinterpretation of the wind conditions. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters](https://openairdocs.org/ntsb-findings/01062000): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Beech 35-C33, 1 case](https://openairdocs.org/ntsb-findings/01062000/cases.md?model=1151408), [All aircraft, 1,269 cases](https://openairdocs.org/ntsb-findings/01062000/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Beech 35-C33, 5 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=1151408), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Awareness of condition (probable cause); cases with it: [Beech 35-C33, 1 case](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=1151408), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Beech 35-C33, 3 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=1151408), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot was returning to his home airport and obtained the automated weather information from a nearby airport. The pilot misinterpreted the wind direction, which was from 010 degrees at 9 knots, as 110 degrees at 9 knots. As a result, the pilot landed long on runway 17 with a left quartering tailwind, bounced, and tried to turn onto a taxiway with too much speed. The pilot was unable to slow the airplane down and subsequently went off the end of the runway into a construction zone. A postaccident examination of the airplane revealed that the firewall and left wing spar were substantially damaged. No mechanical deficiencies that would have precluded normal operation were noted with the airplane or its systems. ## Factual narrative The private pilot was returning to his home airport and obtained the automated weather information from another airport located close by. The pilot misinterpreted the wind direction, which was 010 degrees at 9 knots as 110 degrees at 9 knots. As a result, the pilot landed long on runway 17 with a left quartering tailwind, bounced, and tried to turn onto a taxiway with too much speed. The pilot was unable to slow the airplane down and subsequently went off the end of the runway into a construction zone. A post-accident examination of the airplane revealed the firewall and left wing spar were substantially damaged. No mechanical deficiencies were noted with the airplane or its systems. ## Aircraft - Registration: [N12CA](https://openairdocs.org/deregistered/N12CA-2012-01-03), registration cancelled 2012-01-03, S/N CD-1025, built 1966 (OpenAirDocs) - Reported make and model: BEECH 35-C33 - Registry model: [Beech 35-C33](https://openairdocs.org/model/beech-35-c33) (registry code 1151408) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: CD-1025 - Engines: CONT MOTOR IO-470 SERIES 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Ballard Michael K - Registered owner: Ballard Michael K - Airworthiness certificate: Standard, Normal - Departed: HYS, Hays Municipal, KS - Destination: F46, Rockwall, TX - Flight plan: Unknown - Airport: F46, Rockwall Municipal, runway 17 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; injuries: none; private; airplane ratings: single-engine land; medical: class 3; flight hours: 191 total, 147 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 10° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 93 °F, dew point 64 °F - Altimeter: 29.88 inHg - Observed at: HQZ, 12 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 20110811017699A](https://openairdocs.org/incident/20110811017699A), Aug 11, 2011: Beech 35-C33, Rockwall, TX, Substantial damage. On August 11, 2011, N12CA, a Beech 35-C33, s/n CD-1025 landed on runway 17 at Rockwall Municipal Airport (F46) and ran off the departure end of the runway. The… ## Docket (1 files) The files NTSB released with the investigation on September 28, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=81461. 837 KB in all. - Pilot and Witness Statements (item 1, .PDF, 837 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40354321&FileExtension=.PDF&FileName=Pilot%20and%20Witness%20Statements-Redacted.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. --- 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.