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Accidents · NTSB CHI86FER09 · Preliminary: the investigation is not finished

Piper PA-22-150 accident near Lino Lakes, Minnesota, May 23, 1986

On May 23, 1986 at about 8:00 pm local time, a Piper PA-22-150, registered N5710D, was destroyed in an accident near Lino Lakes, Minnesota (Surfside Seaplane airport). It was a personal flight under general aviation rules (Part 91). 1 person was killed and 1 person was seriously injured. 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
May 23, 1986 · about 8:00 pm local time
Place
Lino Lakes, Minnesota · Surfside Seaplane · map
Type
Accident
Injuries
1 person was killed and 1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Piper PA-22-150 · all PA-22-150s on the register
Registration
N5710D · no longer on the register · serial 22-4406
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

THIS AIRCRAFT WAS OVERLOADED ON TAKEOFF WITH EXTRA FUEL, CAMPING EQUIPMENT, A PASSENGER, AN OUTBOARD MOTOR, TOOLS AND THE LIKE. IN ADDITION THE CENTER OF GRAVITY WAS PROBABLY OUT OF SAFE LIMITS. AN ADDITIONAL FACTOR AFFECTING TAKEOFF AND TURN PERFORMANCE WAS A FOLDABLE BOAT ATTACHED EXTERNALLY TO THE AIRFRAME, WHICH CREATED DRAG. WHEN THE PILOT TURNED TO ALND SHORTLY FOLLOWING THE TAKEOFF, THE AIRCRAFT STALLED INTO THE WATER. THE PILOT WAS NOT FLOATPLANE RATED AND DID NOT HAVE A CURRENT MEDICAL CERTIFICATE. THE FLOATPLANE CONFIGURATION ON THIS AIRCRAFT WAS NOT APPROVED, NOR WAS THE INSTALLATION OF A LARGER ENGINE. THE PLTS FLT TIME WAS NOT REPORTED OR AVAILABLE.

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
  • Medical certificate: Class 2 (expired)
  • Seat: frt

The aircraft

  • Last inspection: annual inspection
  • Maximum gross weight: 2,000 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-360-AID (piston); 0 hours total

The flight

  • Departed from: Lino Lakes MN at 8:00 pm
  • Destination: Red Lake Ontar
  • Flight plan: none
  • Runway 0, 5,500 ft

Weather at the time

  • Light: daylight
  • Wind: from 150° at 7 knots
  • Visibility: 15 statute miles
  • Sky: broken clouds at 4,000 ft; ovct at 12,000 ft
  • Temperature: 63°F (17°C), dew point 46°F (8°C)
  • Altimeter: 30.00 inHg

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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.