# Mounts

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft power plant](https://openairdocs.org/ntsb-findings/0105) › [Power plant](https://openairdocs.org/ntsb-findings/010571) › Mounts
- NTSB code: 01057120
- Cases: 5
- In the probable cause: 5
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-findings/01057120/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01057120/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01057120

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

- 2011: 3 / 3
- 2014: 1 / 1
- 2015: 1 / 1

## Defining events in these cases

- [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 3 cases
- [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 1 cases
- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 1 cases

## Aircraft models (registry)

- [Piper PA 46-350P](https://openairdocs.org/model/piper-pa-46-350p): 2 cases
- [Piper PA-28R-180](https://openairdocs.org/model/piper-pa-28r-180): 1 cases
- [Mooney M20J](https://openairdocs.org/model/mooney-m20j): 1 cases
- [Aerovodochody L-29 DELFIN](https://openairdocs.org/model/aerovodochody-l-29-delfin): 1 cases

## Other findings in the same cases

- [Directional control](https://openairdocs.org/ntsb-findings/01062020) (Aircraft): 2 cases
- [Nose/tail landing gear](https://openairdocs.org/ntsb-findings/01023220) (Aircraft): 2 cases
- [Rough terrain](https://openairdocs.org/ntsb-findings/03021015) (Environmental issues): 1 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 1 cases
- [Scheduled/routine inspection](https://openairdocs.org/ntsb-findings/02061520) (Personnel issues): 1 cases
- [Magneto/distributor](https://openairdocs.org/ntsb-findings/01057414) (Aircraft): 1 cases
- [Rudder misc structure](https://openairdocs.org/ntsb-findings/01035544) (Aircraft): 1 cases

## Newest cases

- [NTSB ERA15LA289](https://openairdocs.org/ntsb/ERA15LA289), Jul 23, 2015: Piper PA-28R-180 (N4631J), Fort Lauderdale, FL, substantial damage. Probable cause: The undetected fatigue cracks in the engine and nose landing gear (NLG) strut mount assembly, which prevented the proper alignment of the NLG after it was extended and the pilots from being able to…
- [NTSB CEN14LA196](https://openairdocs.org/ntsb/CEN14LA196), Apr 11, 2014: Piper PA 46-350P (N1972M), West Chicago, IL, substantial damage. Probable cause: The failure of the nose gear actuator attachment to the engine mount due to overstress, which resulted in the loss of directional control during landing.
- [NTSB WPR11LA313](https://openairdocs.org/ntsb/WPR11LA313), Jun 26, 2011: Piper PA 46-350P (N9246M), Flagstaff, AZ, substantial damage. Probable cause: Fatigue failure of an engine mount attachment foot, which resulted in collapse of the nose landing gear during landing. Contributing to the accident was the failure of the owner/operator to adhere to…
- [NTSB WPR11LA265](https://openairdocs.org/ntsb/WPR11LA265), Jun 18, 2011: Aerovodochody L-29 Delfin (N37KF), Reno, NV, substantial damage. Probable cause: The failure of a modified engine mount to keep the engine properly aligned, which resulted in partial failure of the rudder support structure due to the deflection of the jet engine exhaust.
- [NTSB WPR11FA114](https://openairdocs.org/ntsb/WPR11FA114), Jan 29, 2011: Mooney M20J (N50BJ), Furnace Creek, CA, substantial damage, 1 fatal. Probable cause: The magneto clamps were not securely fastened to the mount, which led to a partial loss of engine power and a subsequent forced landing on unsuitable 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.