# Task 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) › Task design
- NTSB code: 04011015
- Cases: 3
- In the probable cause: 3
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/04011015/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/04011015/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/04011015

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

- 2008: 1 / 1
- 2009: 1 / 1
- 2016: 1 / 1

## Defining events in these cases

- [Uncontained engine failure](https://openairdocs.org/ntsb-events/343): 1 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 1 cases
- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases

## Aircraft models (registry)

- [Boeing 777-232](https://openairdocs.org/model/boeing-777-232): 1 cases
- [Boeing 767-323](https://openairdocs.org/model/boeing-767-323): 1 cases
- [Boeing 757-225](https://openairdocs.org/model/boeing-757-225): 1 cases

## Other findings in the same cases

- [Oversight of maintenance](https://openairdocs.org/ntsb-findings/04032020) (Organizational issues): 1 cases
- [Emergency proc training](https://openairdocs.org/ntsb-findings/04031030) (Organizational issues): 1 cases
- [Adequacy of documents/info](https://openairdocs.org/ntsb-findings/04022045) (Organizational issues): 1 cases
- [Equipment manufacture](https://openairdocs.org/ntsb-findings/04013010) (Organizational issues): 1 cases
- [Lack of communication](https://openairdocs.org/ntsb-findings/02063510) (Personnel issues): 1 cases
- [Use of policy/procedure](https://openairdocs.org/ntsb-findings/02063032) (Personnel issues): 1 cases
- [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 1 cases
- [Delayed action](https://openairdocs.org/ntsb-findings/02041025) (Personnel issues): 1 cases
- [Turbine section](https://openairdocs.org/ntsb-findings/01057250) (Aircraft): 1 cases
- [Compressor section](https://openairdocs.org/ntsb-findings/01057230) (Aircraft): 1 cases

## Newest cases

- [NTSB DCA17FA021](https://openairdocs.org/ntsb/DCA17FA021), Oct 28, 2016: Boeing 767 (N345AN), Chicago, IL, substantial damage. Probable cause: The failure of the high-pressure turbine (HPT) stage 2 disk, which severed the main engine fuel feed line and breached the right main wing fuel tank, releasing fuel that resulted in a fire on the…
- [NTSB ENG09IA002](https://openairdocs.org/ntsb/ENG09IA002), Jan 2, 2009: Boeing 777 (N864DA), Atlanta, GA, incident, minor damage. Probable cause: The fan blade fractured due to a fatigue crack that was the result of the combination of the breakdown of the fan blade lubrication system and residual fatigue life usage following the last overhaul…
- [NTSB DCA08IA048](https://openairdocs.org/ntsb/DCA08IA048), Mar 22, 2008: Boeing 757-200 (N921UW), Richmond, VA, incident, minor damage. Probable cause: The installed wing panel clips failed due to fatigue, likely caused by the incorrect installation of the fasteners in response to SB 757-57-0027. Contributing to the incorrect installation was the…

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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