# NTSB CHI05CA215: Rosner Acro Sport II, N89CJ, Princeton, MN, August 7, 2005

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: August 6, 2005, 20:00 local (Aug 7, 2005, 01:00 UTC)
- Place: Princeton, MN
- Coordinates: 45.537223, -93.513885
- Nearby events: https://openairdocs.org/map.md?lat=45.5372&lon=-93.5139&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 28, 2006
- Report: Approved by Office Director
- NTSB case key (mKey): 62307
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI05CA215
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62307/pdf
- Page: https://openairdocs.org/ntsb/CHI05CA215

## Probable cause

The airplane nosed over during landing as a result of the pilot's failure to maintain control of the airplane when he applied excessive braking.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Nose over, landing - roll
  - brakes(normal) - excessive, pilot in command (cause)
  - terrain condition - ground

## Analysis

The amateur-built airplane sustained substantial damage when it nosed over during landing.  The pilot reported that he made a normal approach and did a three-point landing.  He applied brakes immediately after touchdown.  He reported that as he increased the brake pressure, he felt the tail start to come up.  The airplane nosed over and came to rest inverted.  The pilot reported that he had 58 flight hours in the make and model of the accident airplane.

## Factual narrative

On August 6, 2005, at 2000 central daylight time, an amateur-built Rosner Acro Sport II, N89CJ, sustained substantial damage when it nosed over during landing on runway 09 (1,320 feet by 135 feet, turf) at Reynolds Field (MN91), Princeton, Minnesota.  The pilot was not injured.  The Title 14 Code of Federal Regulations Part 91 personal flight departed Milaca (18Y), Minnesota, at 1945 and was en route to MN91.  Visual meteorological conditions prevailed.  No flight plan was filed.

The pilot reported that he made a normal approach and did a three-point landing.  He applied brakes immediately after touchdown.  He reported that as he increased the brake pressure, he felt the tail start to come up.  The airplane nosed over and came to rest inverted.  The pilot evacuated the airplane without injury.  The pilot reported that he had 58 flight hours in the make and model of the accident airplane.

## Aircraft

- Registration: [N89CJ](https://openairdocs.org/deregistered/N89CJ-2016-12-08), registration cancelled 2016-12-08, S/N 197, built 1990 (OpenAirDocs)
- Reported make and model: Rosner Acro Sport II
- Registry model: [Rosner Frank A ACRO SPORT II](https://openairdocs.org/model/rosner-frank-a-acro-sport-ii) (registry code 05646EV) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 197
- Engines: Lycoming O-360-A3A reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Paul Minear
- Airworthiness certificate: Special, Experimental (Special)
- Departed: 18Y, Milaca, MN
- Destination: MN91, Princeton, MN
- Airport: MN91, Reynolds Field, runway 09

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; injuries: none; private; airplane ratings: single-engine land; medical: class 3; flight hours: 210 total, 58 in this make and model, 6 in the last 90 days, 6 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20050806024819A](https://openairdocs.org/incident/20050806024819A), Aug 6, 2005: Amtr ACROSPORTII, Princeton, MN, Substantial damage. (-23) The pilot [privacy data omitted] operated his acro sport 2 (89CJ) on August 6th starting at 1130. After 3.3 flight hours and 20 landings the pilot…

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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