# Interface design

- Type: NTSB finding subsection
- Path: [Organizational issues](https://openairdocs.org/ntsb-findings/04) › [Development](https://openairdocs.org/ntsb-findings/0401) › [Design](https://openairdocs.org/ntsb-findings/040110) › Interface design
- NTSB code: 04011030
- Cases: 3
- In the probable cause: 3
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-findings/04011030/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/04011030/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/04011030

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

- 2014: 1 / 1
- 2016: 1 / 1
- 2022: 1 / 1

## Defining events in these cases

- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases
- [Near midair/TCAS alert/loss of separation](https://openairdocs.org/ntsb-events/260): 1 cases
- [Ground collision](https://openairdocs.org/ntsb-events/200): 1 cases

## Aircraft models (registry)

- [Boeing 777-223](https://openairdocs.org/model/boeing-777-223): 1 cases
- [Bell Helicopter Textron 525](https://openairdocs.org/model/bell-helicopter-textron-525): 1 cases

## Other findings in the same cases

- [Availability of equipment](https://openairdocs.org/ntsb-findings/04022020) (Organizational issues): 1 cases
- [Equip certification/testing](https://openairdocs.org/ntsb-findings/04012015) (Organizational issues): 1 cases
- [Policy/procedure development](https://openairdocs.org/ntsb-findings/04011025) (Organizational issues): 1 cases
- [Equipment design](https://openairdocs.org/ntsb-findings/04011010) (Organizational issues): 1 cases
- [Vibration](https://openairdocs.org/ntsb-findings/03041045) (Environmental issues): 1 cases
- [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 1 cases
- [Task performance, general](https://openairdocs.org/ntsb-findings/02060000) (Personnel issues): 1 cases
- [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 1 cases
- [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 1 cases
- [Experience/knowledge, general](https://openairdocs.org/ntsb-findings/02030000) (Personnel issues): 1 cases

## Newest cases

- [NTSB DCA22LA175](https://openairdocs.org/ntsb/DCA22LA175), Aug 6, 2022: Boeing 777 (A7-BFH), Chicago, IL, substantial damage. Probable cause: The ground controller’s inappropriate routing of the B777 through a non-movement area, resulting in the airplane’s right wingtip contacting a light pole. Contributing to the accident was the lack of…
- [NTSB DCA16FA199](https://openairdocs.org/ntsb/DCA16FA199), Jul 6, 2016: Bell 525 (N525TA), Italy, TX, destroyed, 2 fatal. Probable cause: A severe vibration of the helicopter that led to the crew's inability to maintain sufficient rotor rotation speed (Nr), leading to excessive main rotor blade flapping, subsequent main rotor blade…
- [NTSB OPS14IA011](https://openairdocs.org/ntsb/OPS14IA011), Aug 16, 2014: Boeing 777 - 236 (N773AN), Shemya, AK, incident, no damage. Probable cause: The air traffic controller’s failure to identify a conflict between two aircraft and to issue an adequate clearance, which resulted in a loss of required separation. Contributing to the incident was…

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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