# NTSB MKC85LA094: Piper PA-39, N8943Y, Peculiar, MO, April 29, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 29, 1985, 17:00 local (22:00 UTC)
- Place: Peculiar, MO
- Coordinates: 38.720985, -94.450401 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.7210&lon=-94.4504&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33935
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC85LA094
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33935/pdf
- Page: https://openairdocs.org/ntsb/MKC85LA094

## 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
  - terrain condition - wet
  - directional control - not maintained, pilot in command (cause)
- Gear collapsed, landing - roll
  - terrain condition - ground

## Analysis

DURING THE LANDING ROLL AT THE PLT'S PVT AIR STRIP WITH A RUNWAY CONSISTING OF WET SOD, THE BRAKES WERE APPLIED TO STOP THE ACFT. THE BRAKING WAS INEFFECTIVE AND THE ACFT DEPARTED THE SIDE OF THE RUNWAY. AFTER DEPARTING THE RUNWAY THE MAIN GEAR AND NOSE GEAR COLLAPSED. THE ACFT SUFFERED SUBSTANTIAL DAMAGE IN THE ENSUING GEAR COLLAPSE.

## Aircraft

- Registration: [N8943Y](https://openairdocs.org/deregistered/N8943Y-2005-06-09), registration cancelled 2005-06-09, S/N 39-104, built 1971 (OpenAirDocs)
- Reported make and model: PIPER PA-39
- Registry model: [Piper PA-39](https://openairdocs.org/model/piper-pa-39) (registry code 7103902) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 39-104
- Airframe hours: 2176
- Engines: LYCOMING IO-320-B1A 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Richard B. West
- Airworthiness certificate: Standard, Normal
- Departed: GAG, GAGE, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 3,730 total, 484 in this make and model, 3,658 as pilot in command, 19 in the last 90 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 15 statute miles
- Lowest ceiling: 2,000 ft overcast

## 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 19850429015199A](https://openairdocs.org/incident/19850429015199A), Apr 29, 1985: Piper PA39, Peculiar, MO, Substantial damage. Brakes were ineffective on wet grass runway. Directional control lost and gear collapsed in rough off runway side.

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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