# Plates/skins (nacelle/pylon)

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft structures](https://openairdocs.org/ntsb-findings/0103) › [Nacelles/pylons structure](https://openairdocs.org/ntsb-findings/010354) › Plates/skins (nacelle/pylon)
- NTSB code: 01035414
- Cases: 1
- In the probable cause: 1
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01035414/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01035414/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01035414

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

- 2016: 1 / 1

## Defining events in these cases

- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 1 cases

## Aircraft models (registry)

- [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4): 1 cases

## Other findings in the same cases

- [Compressor section](https://openairdocs.org/ntsb-findings/01057230) (Aircraft): 1 cases
- [Fuselage main structure](https://openairdocs.org/ntsb-findings/01035310) (Aircraft): 1 cases

## Newest cases

- [NTSB DCA16FA217](https://openairdocs.org/ntsb/DCA16FA217), Aug 27, 2016: Boeing 737-700 (N766SW), Pensacola, FL, substantial damage. Probable cause: A low-cycle fatigue crack in the dovetail of fan blade No. 23, which resulted in the fan blade separating in flight and impacting the fan case. This impact caused the fan blade to fracture into…

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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