# NTSB ERA25LA068: Diamond Aircraft Ind DA 42 NG, N508PA, Daytona Beach, FL, November 15, 2024

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: November 15, 2024, 16:39 local (21:39 UTC)
- Place: Daytona Beach, FL
- Coordinates: 29.176646, -81.065988
- Nearby events: https://openairdocs.org/map.md?lat=29.1766&lon=-81.0660&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Eastern Region Aviation
- Parties: Austrian Safety Investigation Authority, FAA/FSDO
- NTSB case key (mKey): 199390
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA25LA068
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/199390/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=199390
- Page: https://openairdocs.org/ntsb/ERA25LA068

## Probable cause

The maintenance technician’s failure to follow the manufacturer’s recommended procedures during a wheel and tire change to ensure proper clearance of the tire to the wheel well resulting in the right main wheel becoming stuck in the well and subsequent partial gear extension landing.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Malfunction (probable cause); cases with it: [Diamond Aircraft Ind DA 42 NG, 1 case](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=2990105), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md)
- [Action: forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035): Personnel issues › Action/decision · Maintenance personnel (probable cause); cases with it: [Diamond Aircraft Ind DA 42 NG, 1 case](https://openairdocs.org/ntsb-findings/02041035/cases.md?model=2990105), [All aircraft, 440 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Prior to flight: Aircraft maintenance event](https://openairdocs.org/ntsb-events/040); cases with it: [Diamond Aircraft Ind DA 42 NG, 1 case](https://openairdocs.org/ntsb-events/040/sequence.md?model=2990105), [All aircraft, 484 cases](https://openairdocs.org/ntsb-events/040/sequence.md)
- [Landing: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) (defining event); cases with it: [Diamond Aircraft Ind DA 42 NG, 2 cases](https://openairdocs.org/ntsb-events/330/sequence.md?model=2990105), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md)
- [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230); cases with it: [Diamond Aircraft Ind DA 42 NG, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=2990105), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md)

## Analysis

While on approach during a repositioning flight, the pilot selected the landing gear to the down position. The right main landing gear failed to extend and after multiple attempts to get the gear to extend, the pilot made the decision to land with the right main gear up. Video of the accident showed a smooth landing on the left main and nose with the right wing settling to the runway. The airplane exited the right side of the runway, and the right wing struck a runway light and a taxiway sign. Upon contact with the sign, the video showed the right main landing gear falling out of the wheel well. The runway excursion resulted in substantial damage to the right wing. An examination of the maintenance records found that prior to the accident flight, the right main wheel and tire was were replaced. When the gear was retracted during the landing gear examination, the tire contacted the outer diameter of the wheel well cutout and the hydraulic system forced it into the well. When selected down, the right main landing gear became stuck on the wheel well cutout and was unable to be extended. Measurement of the tire and 4 four others of the same make, model, and size showed the diameter of the tire to be 0.5 inches larger than the recommended tire. The landing gear was tested with the manufacturer’s recommended tire and the landing gear extended and retracted normally with no binding. Review of the DA-42 maintenance manual found that the minimum clearance of the tire to the outer diameter of the wheel well is was 4 millimeters. With the tire used, having a larger tread radius, this exceeded the 4-millimeter threshold and caused the tire to get stuck. The maintenance manual procedure for replacement of a wheel and tire requires required that the landing gear be retracted and adjusted for this tolerance on every tire change. The technician who changed the tire reported that he did not perform the landing gear retraction and adjustment after changing the tire.

## Aircraft

- Registration: [N508PA](https://openairdocs.org/aircraft/N508PA), registered now, S/N 42.AC079, built 2007 (OpenAirDocs)
- Reported make and model: DIAMOND AIRCRAFT IND GMBH DA 42 NG
- Registry model: [Diamond Aircraft Ind DA 42 NG](https://openairdocs.org/model/diamond-aircraft-ind-da-42-ng) (registry code 2990105) (OpenAirDocs)
- Registry engine: [Thielert TAE-125-02-99](https://openairdocs.org/engine/thielert-tae-125-02-99) (registry code 59302, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 42.AC079
- Year built: 2007
- Airframe hours: 8117.8
- Engines: Austro Engine AE300 168 horsepower reciprocating; Austro Engine AE300 168 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Operator: Phoenix East Aviation
- Registered owner: Alpha Leasing LLC
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, September 25, 2024, 92 hours before
- Departed: RYY, Kennesaw, GA
- Destination: Same as departure
- Flight plan: VFR/IFR
- Airport: DAB, Daytona Beach Intl, runway 07L, 10,500 × 150 ft, concrete
- Equipment: Electronic primary flight display, Electronic multifunction display, Electronic flight bag or handheld device, ADS-B, Stall warning system

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review April 16, 2024; seat: left; restraint: 3-point; flight hours: 1,429 total, 283 in this make and model, 1,279 as pilot in command, 247 in the last 90 days, 38 in the last 30 days, 0 in the last 24 hours
- Pilot; age 26; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review October 22, 2024; seat: right; restraint: 3-point; flight hours: 765 total, 37 in this make and model, 632 as pilot in command, 145 in the last 90 days, 26 in the last 30 days, 0 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 15 knots
- Visibility: 10 statute miles
- Temperature: 66 °F, dew point 54 °F
- Altimeter: 29.94 inHg
- Observed at: DAB
- METAR: KDAB 152153Z 01015KT 10SM SCT034 19/12 A2994 RMK AO2 SLP139 T01890122

## 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 20241115019129A](https://openairdocs.org/incident/20241115019129A), Nov 15, 2024: Diamond Aircraft Ind Gmbh DA 42 NG, Daytona, FL, Substantial damage. On November 15, 2024, at 1639 hrs. Local time a DA42 was on a relocation flight from kryy to kdab for maintenance. During the final approach to dab, crew noted…

## Docket (9 files)

The files NTSB released with the investigation on June 20, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=199390. 4.5 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 10 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18091513&FileExtension=pdf&FileName=Easton%20Foley%206120_1_Form_Redacted-Rel.pdf
- Memorandum for record a�� flying pilot statement (item 2, PDF, 1 page, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18092090&FileExtension=pdf&FileName=MOR%20Foley%20Statment-Rel.pdf
- Memorandum for record a�� non-flying pilot statement (item 3, PDF, 2 pages, 68 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18091657&FileExtension=pdf&FileName=MOR%20Bansal%20Statement-Rel.pdf
- Service instruction SI42NG-063 (item 4, PDF, 1 page, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18158302&FileExtension=pdf&FileName=SI42NG-063-Landing-Gear-Extension-Retraction-Mechansim-Rel.pdf.pdf
- Airplane maintenance manual - wheel and tire install (item 5, PDF, 2 pages, 12 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18171853&FileExtension=pdf&FileName=Airplane%20Maintenance%20Manual%20DA-42%20main%20wheel%20install-Rel.pdf
- Investigation photographs (item 6, PDF, 8 pages, 2.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18093266&FileExtension=pdf&FileName=Investigation%20Photographs-Rel.pdf
- Memorandum for record a�� accident video description (item 7, PDF, 1 page, 62 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18871279&FileExtension=pdf&FileName=MOR%20Video%20Description-Rel.pdf
- Memorandum for record a�� FAA gear exam (item 8, PDF, 2 pages, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18157973&FileExtension=pdf&FileName=Gear%20Exam%20FAA-Rel.pdf
- Memorandum for record a�� mechanics statement (item 9, PDF, 1 page, 65 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18158998&FileExtension=pdf&FileName=MOR%20Mechanics%20Statement-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.

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