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Accidents · NTSB ANC87LA002 · Preliminary: the investigation is not finished

Teal TSC-1A2 accident near Lewis River, Alaska, October 8, 1986

On October 8, 1986 at about 2:30 am local time, a Teal TSC-1A2, registered N87857, was substantially damaged in an accident near Lewis River, 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 November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
October 8, 1986 · about 2:30 am local time · cases in 1986
Place
Lewis River, Alaska
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Teal TSC-1A2
Registration
N87857 · registry record · serial 32
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

THE PLT STATED THAT HE LANDED THE AMPHIBIOUS ACFT ON THE LEWIS RIVER WITH THE GEAR IN THE EXTENDED POSITION. SHORTLY AFTER TOUCHDOWN, THE ACFT NOSED OVER ON ITS TOP. FAA RECORDS SHOWED THE PLT HAD A TOTAL FLYING TIME OF APRX 710 HRS.

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: 710 hours in all
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Last inspection: annual inspection
  • Maximum gross weight: 750 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320 (piston); 0 hours total

The flight

  • Departed from: MRI Anchorage AK at 9:00 pm
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 40 statute miles
  • Sky: clear
  • Temperature: 50°F (10°C), dew point 19°F (-7°C)
  • Altimeter: 29.00 inHg

Injuries

FatalSeriousMinorNone
Crew1

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.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/ANC87LA002.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.