# Incident 20111202027739I: Md Helicopters Inc 500N, Mesa, AZ, December 2, 2011

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 2, 2011, 14:00 local time
- Place: Mesa, AZ
- Damage: Minor damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 33.4223° N, 111.8226° W: Placed by OpenAirDocs: center of Mesa, AZ, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.4223&lon=-111.8226&mi=10
- Aircraft: N70512, registered now (https://openairdocs.org/aircraft/N70512) (OpenAirDocs)
- Registry model: MD Helicopters 500N (registry code 3030001, https://openairdocs.org/model/md-helicopters-500n) (OpenAirDocs)
- Registry engine: Allison 250-C20 series (registry code 03020, https://openairdocs.org/engine/allison-250-c20-series) (OpenAirDocs)
- Reported make and model: MD HELICOPTERS INC 500N
- Reported engine: ALLISON 250-C20 SER
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 11,000 total, 116 in this make and model, 116 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20111202027739I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

FACTORY INSTRUCTIONAL TRAINING FLIGHT (RECURRENT). ON THIRD STRAIGHT IN FULL DOWN AUTOROTATION, RIGHT REAR LANDING GEAR STRUT FAILED AT PIVOTING BOLT HOLE, CAUSING PARTIAL COLLAPSE OF REAR LANDING GEAR LEGS.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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