# Compressor bleed control

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft power plant](https://openairdocs.org/ntsb-findings/0105) › [Engine bleed air system](https://openairdocs.org/ntsb-findings/010575) › Compressor bleed control
- NTSB code: 01057530
- Cases: 1
- In the probable cause: 1
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01057530/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01057530/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01057530

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

- 2011: 1 / 1

## Defining events in these cases

- [Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150): 1 cases

## Aircraft models (registry)

- [Bombardier CL-600-2C11](https://openairdocs.org/model/bombardier-cl-600-2c11): 1 cases

## Other findings in the same cases

- [Equipment manufacture](https://openairdocs.org/ntsb-findings/04013010) (Organizational issues): 1 cases
- [Design of document/info](https://openairdocs.org/ntsb-findings/04011020) (Organizational issues): 1 cases
- [Equipment design](https://openairdocs.org/ntsb-findings/04011010) (Organizational issues): 1 cases

## Newest cases

- [NTSB ENG12IA004](https://openairdocs.org/ntsb/ENG12IA004), Oct 23, 2011: Bombardier CL600 2C10 (N751EV), Atlanta, GA, incident, no damage. Probable cause: The Start Operability Bleed Valve (OBV) fuel return adapter-fitting fractured and separated in cyclic fatigue, which allowed fuel to spill onto a hot engine case that ignited the undercowl fire. 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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