# NTSB CEN24LA183: Vans RV9, N932JT, Linn Grove, IA, May 11, 2024 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Class 4 · Limited · Final report - Date: May 11, 2024, 11:55 local (16:55 UTC) - Place: Linn Grove, IA - Coordinates: 42.8615, -95.24636 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.8615&lon=-95.2464&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) - Highest injury: Serious injuries - Injuries: 1 serious, 1 minor - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: FAA FSDO - NTSB case key (mKey): 194251 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN24LA183 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194251/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194251 - Page: https://openairdocs.org/ntsb/CEN24LA183 ## Probable cause The pilot’s mismanagement of the airplane’s approach resulting in a collision with terrain. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Attention/monitoring: task monitoring/vigilance](https://openairdocs.org/ntsb-findings/02021520): Personnel issues › Psychological · Pilot (probable cause); cases with it: [Mount William L VANS RV-9A, 1 case](https://openairdocs.org/ntsb-findings/02021520/cases.md?model=05627XP), [All aircraft, 330 cases](https://openairdocs.org/ntsb-findings/02021520/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) (defining event); cases with it: [Mount William L VANS RV-9A, 1 case](https://openairdocs.org/ntsb-events/490/sequence.md?model=05627XP), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis While approaching the private grass strip to land, the airplane collided with slightly higher terrain. The pilot reported that he had lined up with the grass strip and the airplane developed a sink rate. He increased the throttle control, however the airplane still settled and landed short in a field. In a telephone conversation with the pilot, he reported that he added power but that it was too late. In addition, prior to the day of the accident, the airplane had not flown for about 2 years. The pilot had flown the airplane for a short flight before returning to pick up the passenger for the accident flight. Examination of the airplane by the responding Federal Aviation Administration inspectors did not identify any mechanical malfunctions. The pilot did not have a current flight review and the airplane did not have a current inspection. ## Aircraft - Registration: [N932JT](https://openairdocs.org/aircraft/N932JT), registered now, S/N 90312, built 2011 (OpenAirDocs) - Reported make and model: VANS RV9 (A) - Registry model: [Mount William L VANS RV-9A](https://openairdocs.org/model/mount-william-l-vans-rv-9a) (registry code 05627XP) (OpenAirDocs) - Registry engine: [Lycoming O-235-L2C](https://openairdocs.org/engine/lycoming-o-235-l2c) (registry code 42035, 4 cycle) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 90312 - Year built: 2011 - Engines: Lycoming O-235-L2C 118 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Airport: Private grass strip ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 76; injuries: serious; private; airplane ratings: single-engine land; medical: sport pilot; seat: left; flight hours: 450 total ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 10 knots - Temperature: 72 °F, dew point 41 °F - Altimeter: 29.93 inHg - Observed at: KSLB, 16 nm away - METAR: METAR KSLB 111655Z AUTO 27010KT 10SM CLR 22/05 A2993 RMK AO2= ## 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 20240511008969A](https://openairdocs.org/incident/20240511008969A), May 11, 2024: Mount William L VANS RV-9A, Linn Grove, IA, Substantial damage. Accident involved the PIC and one passenger in an RV-9A aircraft. The aircraft was on a westerly heading for approach to final to a grass strip runway. The… ## Docket (5 files) The files NTSB released with the investigation on September 4, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194251. 2.1 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 412 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17513404&FileExtension=pdf&FileName=CEN24LA183%20NTSB%20FORM%206120_Redacted-Rel.pdf - Pilot statement (item 2, PDF, 2 pages, 186 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17512888&FileExtension=pdf&FileName=20240529-Leslie%20Mann-Pilot%20Statement_Redacted-Rel.pdf - Record of conversation pilot (item 3, PDF, 1 page, 63 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17512932&FileExtension=pdf&FileName=CEN24LA183%20ROC-Rel.pdf - Record of conversation FAA (item 4, PDF, 1 page, 87 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17514922&FileExtension=pdf&FileName=CEN24LA183%20ROC%20FAA-Rel.pdf - Photos (item 5, PDF, 3 pages, 2 photos, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17513570&FileExtension=pdf&FileName=Photos%20CEN24LA183-Rel.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.