Cessna 185 accident near Mulchatna River, Alaska, September 20, 1989
On September 20, 1989 at about 11:25 am local time, a Cessna 185, registered N4443R, was substantially damaged in an accident near Mulchatna River, Alaska. 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
IMPROPER PLANNING/DECISION BY THE PILOT, WHICH RESULTED IN FUEL EXHAUSTION DUE TO AN INADEQUATE SUPPLY OF FUEL. FACTORS RELATED TO THE ACCIDENT WERE: LOSS OF FUEL THAT HAD SIPHONED (LEAKED) FROM THE AIRCRAFT BEFORE TAKEOFF AND TREE(S) OVERHANGING THE FAST MOVING RIVER.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 20, 1989 · about 11:25 am local time
- Place
- Mulchatna River, Alaska
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 185 · all 185s on the register
- Registration
- N4443R · registry record · serial 18502957
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
BEFORE TAKING OFF FROM AN UNNAMED LAKE, THE PLT NOTED FUEL HAD SIPHONED FROM THE FUEL TANKS, BUT HE THOUGHT HE HAD ENOUGH FUEL TO GET TO PORT ALSWORTH, AK. EN ROUTE, THE ENG LOST POWER & A FORCE LANDING WAS MADE ON A SWIFT MOVING RIVER. AFTER LANDING, THE RIVER SWEPT THE FLOATPLANE REARWARED INTO AN OVER HANGING TREE, WHICH CAUSED IT TO NOSE OVER. A PERSON AT THE DEPARTURE POINT STATED THAT JUST PRIOR TO THE FLT, HE SAW FUEL DRIPPING FROM THE WING AND A SLICK ON THE WATER.
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: private
- Ratings: single-engine land; single-engine sea
- Flight time: 160 hours in all
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 3,100 lb
- Seats: 4
- Landing gear: fixed
- Engine: Continental IO-520 (piston); 0 hours total
The flight
- Destination: Port Alsworth AK
- Flight plan: none
- Runway 0
Weather at the time
- Light: night, dark
- Sky: not recorded; not recorded
- Temperature: 0°F (-18°C), dew point 0°F (-18°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.