# Instrument approach procedure

- Type: NTSB finding subsection
- Path: [Environmental issues](https://openairdocs.org/ntsb-findings/03) › [Operating environment](https://openairdocs.org/ntsb-findings/0301) › [Air traffic/operating proc](https://openairdocs.org/ntsb-findings/030140) › Instrument approach procedure
- NTSB code: 03014035
- Cases: 1
- In the probable cause: 1
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-findings/03014035/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/03014035/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/03014035

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

- 2021: 1 / 1

## Defining events in these cases

- [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 1 cases

## Aircraft models (registry)

- [Piper PA46-500TP](https://openairdocs.org/model/piper-pa46-500tp): 1 cases

## Other findings in the same cases

- [Below approach minima](https://openairdocs.org/ntsb-findings/03035070) (Environmental issues): 1 cases
- [Missed approach procedure](https://openairdocs.org/ntsb-findings/03014045) (Environmental issues): 1 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 1 cases
- [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 1 cases

## Newest cases

- [NTSB CEN22FA069](https://openairdocs.org/ntsb/CEN22FA069), Dec 11, 2021: Piper PA46-500TP (N744Z), Steamboat Springs, CO, substantial damage, 1 fatal. Probable cause: The pilot’s failure to adhere to the published instrument approach procedure, which resulted in controlled flight into terrain.

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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