Cessna 170 accident near Mi.70 Glenn Hwy, Alaska, August 13, 1987
On August 13, 1987 at about 5:00 am local time, a Cessna 170, registered N4091V, was substantially damaged in an accident near Mi.70 Glenn Hwy, Alaska. It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was 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
- August 13, 1987 · about 5:00 am local time
- Place
- Mi.70 Glenn Hwy, Alaska
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 170 · all 170s on the register
- Registration
- N4091V · no longer on the register · serial 18423
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT STATED THE WEATHER WAS DETERIORATING WITH VISIBILITY LESS THAN ONE MILE AND RAINSHOWERS. THE PILOT ELECTED TO MAKE A PRECAUTIONARY LANDING ON A STATE HIGHWAY. DURING THE LANDING ROLL THE AIRCRAFT STRUCK A ROAD SIGN WITH THE RIGHT WING OF THE AIRCRAFT.
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
- Flight time: 125 hours in all; 125 in this make and model; 63 in the last 90 days; 20 in the last 30 days; 80 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 1,365 hours
- Last inspection: annual inspection, August 15, 1987; 140 hours since
- Maximum gross weight: 2,200 lb
- Seats: 4
- Landing gear: fixed
- Engine: Continental O-300 (piston); 0 hours total
The flight
- Departed from: TKJ Tok AK
- Destination: 215 Birchwood AK
- Flight plan: VFR
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 1 statute miles
- Sky: not recorded
- Temperature: 19°F (-7°C), dew point 18°F (-8°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 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.