# Vertical stab attach fitting

- 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 attach fitting
- NTSB code: 01035553
- Cases: 2
- In the probable cause: 2
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01035553/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01035553/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01035553

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

- 2008: 1 / 1
- 2021: 1 / 1

## Defining events in these cases

- [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 1 cases
- [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 1 cases

## Aircraft models (registry)

- [Mcdonnell Douglas Helicopter MD 900](https://openairdocs.org/model/mcdonnell-douglas-helicopter-md-900): 1 cases
- [Cessna 140](https://openairdocs.org/model/cessna-140): 1 cases

## Other findings in the same cases

- [Document/info production](https://openairdocs.org/ntsb-findings/04013020) (Organizational issues): 1 cases

## Newest cases

- [NTSB CEN21LA450](https://openairdocs.org/ntsb/CEN21LA450), Jul 22, 2021: Cessna 140 (N84BC), Caddo Mills, TX, substantial damage. Probable cause: The missing vertical stabilizer hardware, which resulted in a severe uncommanded yawing motion that necessitated an emergency landing, during which the airplane nosed over and sustained substantial…
- [NTSB WPR09IA070](https://openairdocs.org/ntsb/WPR09IA070), Dec 28, 2008: MD Helicopter MD 900 (N902AF), Kamuela, HI, incident, minor damage. Probable cause: The separation of the endplate bolts for undetermined reasons, resulting in an in-flight separation of the right endplate. Contributing to the accident was the manufacturer's failure to provide…

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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