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Accidents · NTSB CHI91LA179 · Final report

Lake LA-4-200 accident near Battle Creek, Michigan, June 1, 1991

On June 1, 1991 at about 5:10 pm local time, a Lake LA-4-200, registered N2596P, was substantially damaged in an accident near Battle Creek, Michigan. It was an instructional 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

AIRCRAFT CONTROL BY THE DUAL STUDENT WAS NOT MAINTAINED, REMEDIAL ACTION BY THE CFI WAS DELAYED, WHICH RESULTED IN A STALL/MUSH. A FACTOR RELATED TO THE ACCIDENT WAS ROUGH WATER CAUSED BY A POWER BOAT WAKE.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 1, 1991 · about 5:10 pm local time
Place
Battle Creek, Michigan
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Lake LA-4-200 · all LA-4-200s on the register
Registration
N2596P · registry record · serial 879
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

THE CFI SAID THAT WHILE TAXIING ON STEP THE ACFT ENCOUNTERED A POWER BOATS WAKE AND BECAME AIRBORNE. THE STUDENT PILOT REDUCED THE POWER, AND THE ACFT PITCHED DOWN. THE CFI TOOK OER THE CONTROLS, BUT WAS UNABLE TO ARREST THE DESCENT AND THE ACFT STRUCK THE WATER NOSE DOWN, AT ABOUT A 30 DEGREE ANGLE. THE ACFT NOSE FILLED WITH WATER AND SANK.

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: airline transport pilot, flight instructor, commercial pilot
  • Ratings: multi-engine land; multi-engine sea; single-engine land; single-engine sea; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: glider; instructor: gyroplane; instructor: instrument airplane; instrument: airplane; rotorcraft: glider; rotorcraft: gyroplane; rotorcraft: helicopter
  • Flight time: 2,100 hours in all; 25 in this make and model; 85 in the last 90 days; 30 in the last 30 days; 1,850 as pilot in command; 1,300 on instruments
  • Medical certificate: Class 1 (valid medical--no waivers/lim.)
  • Seat: unk

The aircraft

  • Last inspection: inspection type not recorded; 0 hours since
  • Maximum gross weight: 2,600 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming IO-360-A1B (piston); 0 hours total
  • Operator: Brook Aero, INC

The flight

  • Flight plan: none
  • Runway 0
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 200° at 3 knots
  • Visibility: 6 statute miles
  • Sky: broken clouds at 2,500 ft; not recorded at 2,500 ft
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)
  • Observation at 5:30 pm from BTL, 1 miles away

Injuries

FatalSeriousMinorNone
Crew2

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.