# NTSB CEN14CA352: Beech 35 33, N891R, Mt. Vernon, IL, July 5, 2014 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 5, 2014, 13:25 local (18:25 UTC) - Place: Mt. Vernon, IL - Coordinates: 38.323333, -88.858612 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.3233&lon=-88.8586&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 21, 2015 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA FSDO - NTSB case key (mKey): 89638 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN14CA352 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89638/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=89638 - Page: https://openairdocs.org/ntsb/CEN14CA352 ## Probable cause The pilot's failure to ensure the landing gear was extended into the fully locked position. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Info processing/decision: expectation/assumption](https://openairdocs.org/ntsb-findings/02041525): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Beech 35-33, 1 case](https://openairdocs.org/ntsb-findings/02041525/cases.md?model=1151402), [All aircraft, 51 cases](https://openairdocs.org/ntsb-findings/02041525/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Beech 35-33, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=1151402), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The pilot reported he experienced an electrical failure while enroute to his destination. As he approached the airport and lowered the landing gear switch handle, he heard the landing gear lower and felt the airplane slow down. He received the normal indications the landing gear was down and visually confirmed it using the mirror on the left wing. The pilot reported he used the manual crank to ensure the gear was in the locked position. As the airplane touched down, the right landing gear and nose gear collapsed. The airplane sustained substantial damage to the right wing. A FAA inspector's examination of the airplane's electrical system showed system reliability. ## Factual narrative The pilot reported he experienced an electrical failure while enroute to his destination. As he approached the airport and lowered the landing gear switch handle, he heard the landing gear lower and felt the airplane slow down. He received the normal indications the landing gear was down and visually confirmed it using the mirror on the left wing. The pilot reported he used the manual crank to ensure the gear was in the locked position. As the airplane touched down, the right landing gear and nose gear collapsed. The airplane sustained substantial damage to the right wing. A FAA inspector's examination of the airplane's electrical system showed system reliability. ## Aircraft - Registration: [N891R](https://openairdocs.org/aircraft/N891R), registered now, S/N CD-15, built 1959 (OpenAirDocs) - Reported make and model: BEECH 35 33 (NO SERIES) - Registry model: [Beech 35-33](https://openairdocs.org/model/beech-35-33) (registry code 1151402) (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-15 - Year built: 1959 - Airframe hours: 5300 - Engines: CONT MOTOR I0-470 SERIES 265 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Don E Rosenthal - Registered owner: Don E Rosenthal - Airworthiness certificate: Standard, Utility - Last inspection: Annual, August 1, 2013 - Departed: MHK, MANHATTAN, KS - Destination: MVN, Mt. Vernon, IL - Airport: MVN, Mount Vernon, runway 23, 6,500 × 150 ft, asphalt - Equipment: Stall warning system, ADS-B, Auto-pilot, Electronic flight bag or handheld device, Handheld GPS ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; injuries: none; private; airplane ratings: single-engine land, multi-engine land; medical: class 3, with waivers/limitations; last flight review June 12, 2014; seat: left; flight hours: 2,700 total, 800 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 150° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 81 °F, dew point 54 °F - Altimeter: 30.23 inHg - Observed at: KMVN ## 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 20140705010299A](https://openairdocs.org/incident/20140705010299A), Jul 5, 2014: Beech 35-33, Mt. Vernon, IL, Substantial damage. On July 5, 2014 pilot [privacy data omitted] departed denver Colorado enroute to his home base airport in Mt. Vernon IL. From a telephone interview by this… ## Docket (1 files) The files NTSB released with the investigation on April 15, 2015, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=89638. 3.1 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40425132&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-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.