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Accidents · NTSB CHI84LA092 · Preliminary: the investigation is not finished

Beech B-19 accident near Crystal Lake, Illinois, January 22, 1984

On January 22, 1984 at about 7:10 pm local time, a Beech B-19, registered N173S, was substantially damaged in an accident near Crystal Lake, Illinois (Lake In The Hills airport). 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

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
January 22, 1984 · about 7:10 pm local time
Place
Crystal Lake, Illinois · Lake In The Hills · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Beech B-19 · all B-19s on the register
Registration
N173S · no longer on the register · serial MB-788
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

THE ACFT HIT A SNOW BANK DURING AN APPROACH FOR LANDING. THE PLT ADDED POWER AND MADE A GO-AROUND. THE CFI TOOK CONTROL OF THE ACFT AND MADE THE FINAL LANDING WHEN THE MAIN LANDING GEAR COLLAPSED.

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: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instrument: airplane
  • Flight time: 766 hours in all; 2 in this make and model; 50 in the last 90 days; 652 as pilot in command
  • Medical certificate: Class 1 (valid medical--no waivers/lim.)
  • Seat: rgt

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 2,250 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-320-E3D (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 26, 3,000 ft by 50 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 190° at 13 knots
  • Visibility: 10 statute miles
  • Sky: broken clouds at 22,000 ft; scat at 3,000 ft
  • Temperature: 23°F (-5°C), dew point 10°F (-12°C)
  • Altimeter: 30.00 inHg
  • Observation at 6:51 pm from ORD, 22 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.