# Vertical stab misc structure

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft structures](https://openairdocs.org/ntsb-findings/0103) › [Empennage structure](https://openairdocs.org/ntsb-findings/010355) › Vertical stab misc structure
- NTSB code: 01035534
- Cases: 1
- In the probable cause: 1
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-findings/01035534/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01035534/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01035534

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

- 2016: 1 / 1

## Defining events in these cases

- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases

## Aircraft models (registry)

- [Air Tractor AT-502](https://openairdocs.org/model/air-tractor-at-502): 1 cases

## Other findings in the same cases

- [Maintenance, general](https://openairdocs.org/ntsb-findings/02062000) (Personnel issues): 1 cases

## Newest cases

- [NTSB CEN16LA154](https://openairdocs.org/ntsb/CEN16LA154), Apr 18, 2016: Air Tractor AT 502 (N301LA), Kilbourne, LA, destroyed, 1 fatal. Probable cause: The failure of the operator to comply with the terminating action of the airworthiness directive, which resulted in the subsequent failure and separation of the vertical stabilizer due to fatigue.

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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