# NTSB NYC89LA103: Beech A100, N23605, Johnstown, PA, March 22, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 22, 1989, 10:20 local (15:20 UTC)
- Place: Johnstown, PA
- Coordinates: 40.309341, -78.840133 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.3093&lon=-78.8401&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 29, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 36387
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC89LA103
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36387/pdf
- Page: https://openairdocs.org/ntsb/NYC89LA103

## Probable cause

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

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Airframe/component/system failure/malfunction, landing - roll
  - landing gear,gear locking mechanism - failure,total (cause)
- Main gear collapsed, landing - roll

## Analysis

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.

## Aircraft

- Registration: [N23605](https://openairdocs.org/aircraft/N23605), registered now, S/N B-236, built 1977 (OpenAirDocs)
- Reported make and model: BEECH A100
- Registry model: [Beech A100](https://openairdocs.org/model/beech-a100) (registry code 1152915) (OpenAirDocs)
- Category: Airplane
- Serial number: B-236
- Airframe hours: 4614
- Engines: P&W PT6A-28 1628 horsepower turbo prop
- Damage: Substantial damage
- Flight: Positioning, Part 91
- Operator: Corporate Jet
- Registered owner: Snavely Forest Products
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, March 17, 1989, 18 hours before
- Departed: AGC, WEST MIFFLIN, PA
- Flight plan: IFR
- Airport: JST, Johnstown, runway 33, 5,486 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 6,245 total, 388 in this make and model, 4,625 as pilot in command, 74 in the last 90 days, 20 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 5 knots
- Visibility: 12 statute miles
- Temperature: 23 °F, dew point 19 °F
- Altimeter: 30.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19890322065769A](https://openairdocs.org/incident/19890322065769A), Mar 22, 1989: Beech A100, Johnstown, PA, Substantial damage. Down lock plate broke on landing. Allowed left main gear to collapse. Aircraft veered off runway,damaged left wing.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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