Ryan-Navion A accident near Lakeport, New York, September 14, 1986
On September 14, 1986 at about 6:45 pm local time, a Ryan-Navion A, registered N5146K, was substantially damaged in an accident near Lakeport, New York. It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 14, 1986 · about 6:45 pm local time
- Place
- Lakeport, New York · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Ryan-Navion A
- Registration
- N5146K · no longer on the register · serial 4-2046
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE ROCKER BOX COVER ON THE #6 CYLINDER HAD THE TOP AND BOTTOM SCREWS LOOSE AND THE CENTER SCREW MISSING, CAUSING OIL TO LEAK FROM THE BOTTOM OF THE ROCKER BOX COVER.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land; instrument: airplane
- Flight time: 777 hours in all; 204 in this make and model; 29 in the last 90 days; 647 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: unk
The aircraft
- Airframe total time: 4,488 hours
- Last inspection: annual inspection, November 12, 1985
- Maximum gross weight: 3,233 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental E225 SERIES (piston); 0 hours total
The flight
- Departed from: NK03 Durhamville NY at 6:45 pm
- Destination: Cicero NY
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 250° at 10 knots, gusting 15
- Visibility: 20 statute miles
- Sky: not recorded; clear
- Temperature: 64°F (18°C), dew point 57°F (14°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.