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Accidents · NTSB NYC89LA103 · Final report

Beech A100 accident near Johnstown, Pennsylvania, March 22, 1989

On March 22, 1989 at about 3:20 pm local time, a Beech A100, registered N23605, was substantially damaged in an accident near Johnstown, Pennsylvania (Johnstown airport). It was a positioning 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

FAILURE OF THE DOWN LOCK PLATE, WHICH ALLOWED THE LANDING GEAR TO COLLAPSE.

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

What the record shows

Date
March 22, 1989 · about 3:20 pm local time
Place
Johnstown, Pennsylvania · Johnstown · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Beech A100 · all A100s on the register
Registration
N23605 · registry record · serial B-236
Damage
Substantial damage
Flight
Positioning flight · general aviation rules (Part 91)

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

DURING A LANDING ROLL OUT, THE LEFT MAIN LANDING GEAR COLLAPSED. AN EXAM REVEALED THAT THE LANDING GEAR DOWN LOCK PLATE WAS BROKEN, WHICH ALLOWED THE MAIN LANDING GEAR TO COLLAPSE INTO THE WHEEL WELL.

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
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 6,245 hours in all; 388 in this make and model; 74 in the last 90 days; 20 in the last 30 days; 4,625 as pilot in command; 2,943 on instruments
  • Medical certificate: Class 1 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 4,614 hours
  • Last inspection: approved inspection programme, March 17, 1989; 18 hours since
  • Maximum gross weight: 11,500 lb
  • Seats: 10
  • Landing gear: retractable
  • Engine: P&W PT6A-28 (turboprop); 0 hours total

The flight

  • Departed from: AGC West Mifflin PA at 2:45 pm
  • Flight plan: IFR
  • Runway 33, 5,486 ft by 150 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 310° at 5 knots
  • Visibility: 12 statute miles
  • Sky: not recorded; scat at 1,200 ft
  • Temperature: 23°F (-5°C), dew point 19°F (-7°C)
  • Altimeter: 30.00 inHg

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.