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Accidents · NTSB ANC90LA059 · Final report

Piper PA-18 accident near Cordova, Alaska, April 15, 1990

On April 15, 1990 at about 3:00 pm local time, a Piper PA-18, registered N6MX, was substantially damaged in an accident near Cordova, Alaska (Galena Bay airport). 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 PILOT'S IMPROPER PLANNING/DECISION, WHICH RESULTED IN A NOSE-OVER OF THE AIRCRAFT WHEN IT ENCOUNTERED A WAVE FROM A BOAT DURING THE TAKEOFF RUN.

Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.

What the record shows

Date
April 15, 1990 · about 3:00 pm local time
Place
Cordova, Alaska · Galena Bay · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18 · all PA-18s on the register
Registration
N6MX · registry record · serial 186650
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT RPRTD THAT DURING THE TAKEOFF RUN, THE FLOAT PLANE HAD JUST COME UP ON THE STEP, WHEN IT HIT THE WAKE OF A BOAT. THE PLANE BALLOONED IN THE AIR BEFORE IT HAD SUFFICIENT SPEED TO FLY. THE ACFT THEN CONTACTED THE WATER, THE FLOATS DUG IN & THE PLANE NOSED OVER.

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; single-engine sea; instrument: airplane
  • Flight time: 497 hours in all; 297 in this make and model; 36 in the last 90 days; 36 in the last 30 days; 405 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: unk

The aircraft

  • Airframe total time: 2,900 hours
  • Last inspection: annual inspection, April 11, 1990; 36 hours since
  • Maximum gross weight: 1,750 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320 (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 45 statute miles
  • Sky: clear
  • Temperature: 50°F (10°C), dew point 36°F (2°C)
  • Altimeter: 30.00 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.

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC90LA059.