NTSB CAROL · Event
Event WPR11CA468
Registry · N7549N
FAA Aircraft Registry record.
Make / Model
BEECH 36
Year of manufacture
1968 · 43 years old at event
Engine
CONT MOTOR IO 520 SERIES (285 hp)
Seats / Engines
6 seats · 1 engine
Last airworthiness date
19680731
ADS-B equipped
Yes — Mode-S AA2C85
Registrant of record
LAUTERBACH DENNIS R
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's inadvertent retraction of the landing gear during the landing roll.
Factual narrative
The pilot said that after landing he inadvertently selected the main landing gear lever rather than the flap lever to the retract position, which resulted in the collapse of all three landing gear and substantial damage to the undercarriage of the airplane. The pilot said that after landing he inadvertently moved the main landing gear lever rather than the flap lever to the retract position, which resulted in the collapse of all three landing gear and substantial damage to the undercarriage of the airplane. The pilot reported no anomalies with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Action/decision-Action-Incorrect action performance-Pilot - C
- C Aircraft-Aircraft systems-Landing gear system-Landing gear selector-Unintentional use/operation - C
Verbatim from NTSB's published report. Source file
NTSB_2011_WPR11CA468.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2022 · arXiv preprint
Zero Touch Coordinated UAV Network Formation for 360° Views of a Moving Ground Target in Remote VR Applications
Unmanned aerial vehicles (UAVs) with on-board cameras are widely used for remote surveillance and video capturing applications.
- Embry-Riddle Scholarly Commons 2021 · Journal article (IJAAA)
Internet of Things 36-rotor Multicopter for Ionizing Radiation Surveying
This paper presents an Internet of things 36-rotor unmanned aerial vehicle suitable for radiological surveying of buildings and facilities.
- NASA NTRS 2019 · Other - NACA Research Memorandum
Ditching Tests of Two Models of the Army B-36 Airplane
The ditching characteristics of the Army B-36 airplane were determined by testing 1/20- and 1/30-scale dynamic models in calm water in Langley tank no. 2 and at the outdoor catapult.
- NASA NTRS 2019 · Other
Differential Pressures on a Pitot-venturi and a Pitot-static Nozzle over 360 Degrees Pitch and Yaw
Measurements of the differential pressures on two navy air-speed nozzles, consisting of a Zahm type Pitot-Venturi tube and a SQ-16 two-pronged Pitot-static tube, in a tunnel air stream of fixed speed …
- NASA NTRS 2019 · Technical Memorandum (TM)
Flutter clearance of the Schweizer 1-36 deep-stall sailplane
A Schweizer 1-36 sailplane was modified for a controlled, deep-stall flight program. This modification allowed the horizontal stabilizer to pivot as much as 70 deg leading edge down.
- NASA NTRS 2026 · Technical Memorandum (TM)
Assessing National Airspace System Impact of the Hybrid Electric Turboprop Commercial Freighter
The Hybrid Electric Turboprop Commercial Freighter (HETCOF) is a large turboprop aircraft using hybrid electric propulsion designed to reduce cost and emissions for narrowbody cargo operations capable…
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