# Pressure

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft power plant](https://openairdocs.org/ntsb-findings/0105) › [Eng oil sys (airframe furnish)](https://openairdocs.org/ntsb-findings/010579) › Pressure
- NTSB code: 01057931
- Cases: 6
- In the probable cause: 5
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-findings/01057931/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01057931/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01057931

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

- 2008: 0 / 1
- 2010: 1 / 1
- 2013: 1 / 1
- 2014: 1 / 1
- 2019: 1 / 1
- 2024: 1 / 1

## Defining events in these cases

- [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 2 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 2 cases
- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 1 cases
- [Structural icing](https://openairdocs.org/ntsb-events/210): 1 cases

## Aircraft models (registry)

- [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r): 1 cases
- [Piper PA-32R-300](https://openairdocs.org/model/piper-pa-32r-300): 1 cases
- [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200): 1 cases
- [Lancair LC41-550FG](https://openairdocs.org/model/lancair-lc41-550fg): 1 cases
- [Cirrus Design SR22T](https://openairdocs.org/model/cirrus-design-sr22t): 1 cases
- [Morrison Joseph Q2](https://openairdocs.org/model/morrison-joseph-q2): 1 cases

## Other findings in the same cases

- [Rough terrain](https://openairdocs.org/ntsb-findings/03021015) (Environmental issues): 2 cases
- [Oil](https://openairdocs.org/ntsb-findings/01071020) (Aircraft): 2 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 1 cases
- [Manufacture/production, general](https://openairdocs.org/ntsb-findings/04013000) (Organizational issues): 1 cases
- [Conducive to structural icing](https://openairdocs.org/ntsb-findings/03031025) (Environmental issues): 1 cases
- [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 1 cases
- [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 1 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 1 cases
- [Delayed action](https://openairdocs.org/ntsb-findings/02041025) (Personnel issues): 1 cases
- [Recip eng oil sys](https://openairdocs.org/ntsb-findings/01058550) (Aircraft): 1 cases

## Newest cases

- [NTSB CEN25LA053](https://openairdocs.org/ntsb/CEN25LA053), Dec 2, 2024: Piper PA-28R-200 (N41997), Boscobel, WI, substantial damage. Probable cause: The ice obstruction of the engine oil breather tube and alternate air outlet, which resulted in a failure of the crankcase oil seal and loss of engine oil. Contributing to the accident was the…
- [NTSB CEN19LA159](https://openairdocs.org/ntsb/CEN19LA159), May 30, 2019: Lancair LC41 (N2514F), Cleburne, TX, substantial damage. Probable cause: A total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect.
- [NTSB ERA15LA062](https://openairdocs.org/ntsb/ERA15LA062), Nov 28, 2014: Cirrus Design SR22T (N227RR), Hampton, SC, substantial damage. Probable cause: The pilot’s improper decision to descend the airplane at an airspeed greater than the published best glide speed following an erroneous oil pressure indication, which resulted in an off-airport…
- [NTSB ERA13FA256](https://openairdocs.org/ntsb/ERA13FA256), May 27, 2013: Piper PA-32R-300 (N4489F), Macon, GA, destroyed, 2 fatal. Probable cause: A total loss of engine power due to oil starvation for reasons that could not be determined due to extensive postcrash fire and heat damage to the engine components.
- [NTSB WPR10CA181](https://openairdocs.org/ntsb/WPR10CA181), Mar 26, 2010: Morrison Joseph Q2 (N142BP), Frazier Park, CA, substantial damage. Probable cause: A partial loss of engine power likely due to the failure of the oil pump.
- [NTSB SEA08LA133](https://openairdocs.org/ntsb/SEA08LA133), May 11, 2008: Thrush S-2R (N8860Q), Holtville, CA, substantial damage. Probable cause: The loss of oil pressure for undetermined reasons.

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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