# NTSB GAA19CA231: Beech 76, N3733D, St Charles, MO, April 26, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 26, 2019, 12:35 local (17:35 UTC) - Place: St Charles, MO - Coordinates: 38.929721, -90.43 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.9297&lon=-90.4300&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report August 27, 2020 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 99342 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA231 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/99342/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=99342 - Page: https://openairdocs.org/ntsb/GAA19CA231 ## Probable cause The pilot receiving instruction's failure to extend the landing gear. Contributing to the accident were the pilot receiving instruction's failure to complete the landing checklist and the flight instructor's inadequate monitoring of the pilot. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230): Aircraft › Aircraft systems · Not used/operated (probable cause); cases with it: [Beech 76, 4 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md?model=1153005), [All aircraft, 416 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md) - [Action: lack of action](https://openairdocs.org/ntsb-findings/02041030): Personnel issues › Action/decision · Student/instructed pilot (probable cause); cases with it: [Beech 76, 4 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md?model=1153005), [All aircraft, 792 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md) - [Use of equip/info: use of checklist](https://openairdocs.org/ntsb-findings/02063030): Personnel issues › Task performance · Student/instructed pilot (probable cause); cases with it: [Beech 76, 3 cases](https://openairdocs.org/ntsb-findings/02063030/cases.md?model=1153005), [All aircraft, 336 cases](https://openairdocs.org/ntsb-findings/02063030/cases.md) - [Attention/monitoring: monitoring other person](https://openairdocs.org/ntsb-findings/02021535): Personnel issues › Psychological · Instructor/check pilot (probable cause); cases with it: [Beech 76, 4 cases](https://openairdocs.org/ntsb-findings/02021535/cases.md?model=1153005), [All aircraft, 200 cases](https://openairdocs.org/ntsb-findings/02021535/cases.md) - [Wind](https://openairdocs.org/ntsb-findings/03034000): Environmental issues › Conditions/weather/phenomena · Contributed to outcome; cases with it: [Beech 76, 1 case](https://openairdocs.org/ntsb-findings/03034000/cases.md?model=1153005), [All aircraft, 110 cases](https://openairdocs.org/ntsb-findings/03034000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Beech 76, 3 cases](https://openairdocs.org/ntsb-events/095/sequence.md?model=1153005), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md) - [Landing: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Beech 76, 3 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=1153005), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [Beech 76, 1 case](https://openairdocs.org/ntsb-events/490/sequence.md?model=1153005), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The flight instructor reported that, during the instructional flight, the pilot receiving instruction was practicing an engine-out landing. The landing checklist was called, but due to "wind effects," the landing gear were not extended. The airplane touched down on the runway centerline with the landing gear retracted. The airplane slid left, exited the runway, and impacted a landing light. The lower fuselage longerons were substantially damaged. ## Factual narrative The flight instructor reported that during the instructional flight accomplishing takeoffs and landings, during the seventh landing, the landing checklist was called, but due to the "wind effects", the landing gear was not extended. During the approach, the airplane was configured with the left engine operating normally while the right engine was operating to simulate zero thrust. The airplane touched down on the runway centerline with the landing gear retracted. The airplane slid to the left, exited the runway, and impacted a landing light fixture. The lower fuselage longerons were substantially damaged. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N3733D](https://openairdocs.org/aircraft/N3733D), registered now, S/N ME-362, built 1980 (OpenAirDocs) - Reported make and model: Beech 76 (No Series) - Registry model: [Beech 76](https://openairdocs.org/model/beech-76) (registry code 1153005) (OpenAirDocs) - Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: ME-362 - Year built: 1980 - Engines: Lycoming O&VO-360 SER reciprocating; Lycoming O&VO-360 SER reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Dury Aviation Services Inc - Registered owner: Dury Aviation Services Inc - Airworthiness certificate: Standard, Normal - Departed: SET, St Charles, MO - Destination: SET, St Charles, MO - Airport: SET, St Charles County Smartt, runway 27, 2,000 × 75 ft, asphalt - Equipment: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 71; injuries: none; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; seat: right - Student pilot; age 45; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: 310° at 17 knots, gusting 10 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 30 °F - Altimeter: 30.03 inHg - Observed at: KSET ## 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 20190426003429A](https://openairdocs.org/incident/20190426003429A), Apr 26, 2019: Beech 76, St. Charles, MO, Substantial damage. This was a 3.1 hour instructional flight with seven total landings. The instructor pilot simulated a engine failure by reducing the right engine thrust to… ## Docket (3 files) The files NTSB released with the investigation on July 16, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=99342. 440 KB in all. - Flight Instructor Statement (item 1, .PDF, 204 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40485414&FileExtension=.PDF&FileName=Flight%20Instructor%20Statement-Master.PDF - FAA Record of Conversation (item 2, .PDF, 92 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40485415&FileExtension=.PDF&FileName=FAA%20Record%20of%20Conversation-Master.PDF - Accident Photo (item 3, .PDF, 1 photo, 145 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40485416&FileExtension=.PDF&FileName=Accident%20Photo-Master.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.