# Ribs/bulkheads (on wing)

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft structures](https://openairdocs.org/ntsb-findings/0103) › [Wing structure](https://openairdocs.org/ntsb-findings/010357) › Ribs/bulkheads (on wing)
- NTSB code: 01035712
- Cases: 4
- In the probable cause: 1
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01035712/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01035712/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01035712

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

- 2009: 0 / 1
- 2012: 0 / 2
- 2023: 1 / 1

## Defining events in these cases

- [Birdstrike](https://openairdocs.org/ntsb-events/901): 2 cases
- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases
- [Abnormal runway contact](https://openairdocs.org/ntsb-events/090): 1 cases

## Aircraft models (registry)

- [Piper PA-32-301](https://openairdocs.org/model/piper-pa-32-301): 1 cases
- [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200): 1 cases
- [Cessna 172N](https://openairdocs.org/model/cessna-172n): 1 cases
- [Jones Jay D CASSUTT M 11](https://openairdocs.org/model/jones-jay-d-cassutt-m-11): 1 cases

## Other findings in the same cases

- [Animal(s)/bird(s)](https://openairdocs.org/ntsb-findings/03022045) (Environmental issues): 2 cases
- [Plates/skins (on wing)](https://openairdocs.org/ntsb-findings/01035730) (Aircraft): 2 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 1 cases
- [Landing flare](https://openairdocs.org/ntsb-findings/01062041) (Aircraft): 1 cases
- [Lateral/bank control](https://openairdocs.org/ntsb-findings/01062023) (Aircraft): 1 cases
- [Spar (on wing)](https://openairdocs.org/ntsb-findings/01035711) (Aircraft): 1 cases

## Newest cases

- [NTSB WPR23LA128](https://openairdocs.org/ntsb/WPR23LA128), Mar 12, 2023: Jones Jay D Cassutt M 11 (N55XJ), Castroville, CA, substantial damage. Probable cause: A failure of the outboard trailing edge rib in the left wing, which resulted in a separation of the left aileron and a loss of control.
- [NTSB WPR12LA377](https://openairdocs.org/ntsb/WPR12LA377), Aug 28, 2012: Piper PA-28R-200 (N4922T), Everett, WA, substantial damage. Probable cause: A hard landing likely made by the private pilot on a solo flight that preceded the dual instructional flight during which the wing damage became obvious.
- [NTSB ANC12CA063](https://openairdocs.org/ntsb/ANC12CA063), Jun 28, 2012: Piper PA-32-301 (N8470Y), King Salmon, AK, substantial damage. Probable cause: An in-flight collision with a bird during cruise flight.
- [NTSB WPR09CA182](https://openairdocs.org/ntsb/WPR09CA182), Apr 4, 2009: Cessna 172S (N4915F), Snohomish, WA, substantial damage. Probable cause: An in-flight collision with a crow.

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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