# Attitude gyro & indication

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › [Navigation system](https://openairdocs.org/ntsb-findings/010234) › Attitude gyro & indication
- NTSB code: 01023421
- Cases: 5
- In the probable cause: 4
- Fatal cases: 4
- All cases: https://openairdocs.org/ntsb-findings/01023421/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01023421/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01023421

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

- 2008: 1 / 1
- 2009: 0 / 1
- 2012: 2 / 2
- 2022: 1 / 1

## Defining events in these cases

- [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 3 cases
- [Flight instrument malf/fail](https://openairdocs.org/ntsb-events/334): 1 cases
- [Inflight upset](https://openairdocs.org/ntsb-events/271): 1 cases

## Aircraft models (registry)

- [Raytheon C90A](https://openairdocs.org/model/raytheon-c90a): 1 cases
- [Piper PA-28-160](https://openairdocs.org/model/piper-pa-28-160): 1 cases
- [Piper PA-24-250](https://openairdocs.org/model/piper-pa-24-250): 1 cases
- [Cessna 551](https://openairdocs.org/model/cessna-551): 1 cases
- [Cessna P337H](https://openairdocs.org/model/cessna-p337h): 1 cases

## Other findings in the same cases

- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 2 cases
- [Directional gyro & indication](https://openairdocs.org/ntsb-findings/01023422) (Aircraft): 2 cases
- [Autopilot system](https://openairdocs.org/ntsb-findings/01022210) (Aircraft): 2 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 1 cases
- [Oversight of personnel](https://openairdocs.org/ntsb-findings/04032010) (Organizational issues): 1 cases
- [Training, general](https://openairdocs.org/ntsb-findings/04031000) (Organizational issues): 1 cases
- [Dark](https://openairdocs.org/ntsb-findings/03036020) (Environmental issues): 1 cases
- [Rain](https://openairdocs.org/ntsb-findings/03035035) (Environmental issues): 1 cases
- [Clouds](https://openairdocs.org/ntsb-findings/03035025) (Environmental issues): 1 cases
- [CRM/MRM techniques](https://openairdocs.org/ntsb-findings/02063540) (Personnel issues): 1 cases

## Newest cases

- [NTSB ANC23FA008](https://openairdocs.org/ntsb/ANC23FA008), Dec 15, 2022: Raytheon C90A (N13GZ), Kaupo, HI, substantial damage, 3 fatal. Probable cause: Guardian Flight’s inadequate pilot training and performance tracking, which failed to identify and correct the pilot’s consistent lack of skill, and which resulted in the pilot’s inability to…
- [NTSB ERA13FA088](https://openairdocs.org/ntsb/ERA13FA088), Dec 16, 2012: Piper PA-28-160 (N5714W), Parkton, NC, substantial damage, 1 fatal. Probable cause: The failure of the instrument-rated pilot to maintain control of the airplane while in instrument meteorological conditions after reporting a gyro malfunction. Contributing to the accident was the…
- [NTSB CEN12FA164](https://openairdocs.org/ntsb/CEN12FA164), Feb 21, 2012: Piper PA-24-250 (N7147P), Albany, TX, substantial damage, 2 fatal. Probable cause: The loss of flight instrumentation due to a failed vacuum pump while flying a night without a discernable horizon, which resulted in the pilot's spatial disorientation and an in-flight loss of…
- [NTSB CEN09LA281](https://openairdocs.org/ntsb/CEN09LA281), May 5, 2009: Cessna 551 (N740JB), Stillwater, OK, substantial damage. Probable cause: The pilot's loss of control for undetermined reasons.
- [NTSB NYC08FA215](https://openairdocs.org/ntsb/NYC08FA215), Jun 15, 2008: Cessna P337H (N15EM), Cape Elizabeth, ME, destroyed, 2 fatal. Probable cause: The pilot's improper decision to continue the flight in instrument meteorological conditions after experiencing an attitude indicator malfunction.

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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