# NTSB NYC91LA190: Piper PA-22-150, N2315P, Thomasville, PA, July 28, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 28, 1991, 16:17 local (20:17 UTC)
- Place: Thomasville, PA
- Coordinates: 39.919937, -76.869819 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9199&lon=-76.8698&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 10, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 36973
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91LA190
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36973/pdf
- Page: https://openairdocs.org/ntsb/NYC91LA190

## Probable cause

THE PILOT'S IMPROPER USE OF FLIGHT CONTROLS DURING THE LANDING ROLL, WHICH RESULTED IN A LOSS OF AIRPLANE CONTROL. FACTORS RELATED TO THE ACCIDENT WERE: THE LOOSE NOSE WHEEL SHIMMY DAMPENER AND THE PILOT'S LACK OF FLIGHT EXPERIENCE IN THIS MAKE AND MODEL OF AIRPLANE.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - landing gear,main gear strut - vibration (contributing factor)
  - flight controls - improper use of, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
  - aircraft control - not maintained, pilot in command
- Nose over, landing - roll

## Analysis

THE PILOT STATED THAT THE LANDING WAS NORMAL, BUT THAT A 'VOILENT NOSE WHEEL SHIMMY' OCCURRED AS THE AIRPLANE SLOWED. HE SAID, '[THE AIRPLANE] VEERED SHARPLY TO THE LEFT, [AND] UPENDED.' THE FAA INSPECTORS FOUND THE NOSEWHEEL SHIMMY DAMPENER LOOSE. THE PILOT HAD A TOTAL FLIGHT TIME OF 37 HOURS IN THIS MAKE AND MODEL OF AIRPLANE.

## Aircraft

- Registration: [N2315P](https://openairdocs.org/aircraft/N2315P), registered now, S/N 22-2726, built 1955 (OpenAirDocs)
- Reported make and model: PIPER PA-22-150
- Registry model: [Piper PA-22-150](https://openairdocs.org/model/piper-pa-22-150) (registry code 7102210) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 22-2726
- Engines: LYCOMING O-320-A2A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Richard Miller
- Registered owner: Richard Miller
- Last inspection: Unknown, January 2, 2000
- Airport: THU, York, runway 34, 4,190 × 100 ft

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 855 total, 37 in this make and model, 837 as pilot in command, 14 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Lowest ceiling: none

## 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 19910728030369A](https://openairdocs.org/incident/19910728030369A), Jul 28, 1991: Piper PA22150, York, PA, Substantial damage. Nose wheel shimmy on landing rollout. Lost control, cartwheeled. Flipped over. Shimmy damper loose. Incorrect input

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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