# Leading edge devices

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft structures](https://openairdocs.org/ntsb-findings/0103) › [Wing structure](https://openairdocs.org/ntsb-findings/010357) › Leading edge devices
- NTSB code: 01035754
- Cases: 3
- In the probable cause: 2
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01035754/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01035754/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01035754

## Cases per year (in the probable cause / all)

- 2013: 0 / 1
- 2016: 1 / 1
- 2021: 1 / 1

## Defining events in these cases

- [Birdstrike](https://openairdocs.org/ntsb-events/901): 1 cases
- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases
- [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 1 cases

## Aircraft models (registry)

- [Boeing DHC-8-102](https://openairdocs.org/model/boeing-dhc-8-102): 1 cases
- [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f): 1 cases
- [Jeffrey D Tuttle BDK CARBON CONCEPTS](https://openairdocs.org/model/jeffrey-d-tuttle-bdk-carbon-concepts): 1 cases

## Other findings in the same cases

- [Animal(s)/bird(s)](https://openairdocs.org/ntsb-findings/03022045) (Environmental issues): 1 cases
- [Spar (on wing)](https://openairdocs.org/ntsb-findings/01035711) (Aircraft): 1 cases

## Newest cases

- [NTSB DCA22LA038](https://openairdocs.org/ntsb/DCA22LA038), Nov 29, 2021: Boeing 747-4B5F (N705CK), Miami, FL, substantial damage. Probable cause: Incorrect lubrication of the foreflap fitting assembly.
- [NTSB ANC16LA068](https://openairdocs.org/ntsb/ANC16LA068), Sep 16, 2016: Jeffery D Tuttle BDK Carbon Concepts (N8008Z), Wasilla, AK, substantial damage. Probable cause: The structural failure of both wings’ leading-edge slats, which resulted in a loss of airplane control.
- [NTSB DCA14CA031](https://openairdocs.org/ntsb/DCA14CA031), Nov 25, 2013: De Havilland DHC8 - 102 (N808EX), Philadelphia, PA, substantial damage. Probable cause: an inadvertent encounter with several birds during approach that resulted in substantial damage to the airplane.

NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted.

Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1).

NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names.

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