# NTSB DEN89FA020: Piper PA-60-601P, N6069U, Laketown, UT, October 20, 1988

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: October 20, 1988, 15:30 local (21:30 UTC)
- Place: Laketown, UT
- Coordinates: 41.810134, -111.370643 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.8101&lon=-111.3706&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report November 7, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 17568
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN89FA020
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17568/pdf
- Page: https://openairdocs.org/ntsb/DEN89FA020

## Sequence of events

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

- Loss of control - in flight, cruise
  - incapacitation(other cardiovascular), pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PLT DEPARTED SALT LAKE CITY ON A PLEASURE FLT TO BEAR LAKE TO OVERFLY A HOME THAT HE OWNED. WITNESSES NEAR THE ACC SITE STATED THEY SAW THE ACFT CIRCLE OVER THE HOUSE AND THEN DEPART THE AREA OVER A RIDGE OF MTNS. THE ACFT TURNED OUT OVER THE LAKE AND WAS IN STRAIGHT AND LEVEL FLT SHORTLY BEFORE IT DESCENDED AT A STEEP ANGLE INTO THE WATER. THE AUTOPSY PERFORMED ON THE PLT REVEALED CORONARY ARTERIOSCLEROSIS. THE ASST MEDICAL EXAMINER STATED IN THE AUTOPSY REPORT THE PLT 'MAY HAVE BEEN RENDERED INCAPACITATED BY AN ACUTE CARDIAC ARRHYTHMIA.'

## Aircraft

- Registration: [N6069U](https://openairdocs.org/deregistered/N6069U-1989-09-11), registration cancelled 1989-09-11, S/N 61P06757963317 (OpenAirDocs)
- Reported make and model: PIPER PA-60-601P
- Registry model: [Piper AEROSTAR 601P](https://openairdocs.org/model/piper-aerostar-601p) (registry code 7106012) (OpenAirDocs)
- Category: Airplane
- Airframe hours: 971
- Engines: LYCOMING IO-540-S1A5 290 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Diesel Service And Sales Co.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, May 5, 1988, 18 hours before
- Departed: SLC, SALT LAKE CITY, UT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 66; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 12,150 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 7 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 75 °F

## 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 19881020046969A](https://openairdocs.org/incident/19881020046969A), Oct 20, 1988: Piper STCPA60, Laketown, UT, Destroyed, 1 fatal. Aircraft was seen to dive into a lake at a high speed. Autopsy shows pilot had coronary arteriosclerosis.

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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