# NTSB ATL83IA053: Piper PA-23-250, N501BC, Washington, DC, December 5, 1982

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: December 5, 1982, 10:40 local (15:40 UTC)
- Place: Washington, DC
- Location: 38.8951° N, 77.0364° W: Placed by OpenAirDocs: center of Washington, DC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8951&lon=-77.0364&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report December 5, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72967
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL83IA053
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72967/pdf
- Page: https://openairdocs.org/ntsb/ATL83IA053

## Sequence of events

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

- Main gear collapsed, landing - roll
  - reason for occurrence undetermined (cause)

## Analysis

THE PILOT REPORTED THAT HE HAD 3 GREEN LIGHTS AFTER EXTENDING THE LANDING GEAR. DURING LANDING ROLL, THE LEFT MAIN LDG GR COLLAPSED FOR AN UNDETERMINED REASON. THE LANDING GEAR HANDLE WAS FOUND IN THE DOWN POSITION.

## Aircraft

- Registration: [N501BC](https://openairdocs.org/aircraft/N501BC), registered now, S/N 27-7305157, built 1973 (OpenAirDocs)
- Reported make and model: PIPER PA-23-250
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 27-7305157
- Airframe hours: 3803
- Engines: LYCOMING IO540C435 250 horsepower reciprocating
- Damage: Minor damage
- Fire: Unknown
- Flight: Personal, Part 91
- Operator: Mars Aerospace, Inc.
- Registered owner: Mars Aerospace, Inc.
- Departed: ISP, ISLIP, NY
- Destination: DCA, WASHINGTON, DC
- Flight plan: IFR
- Airport: Dca, runway 18, 6,869 × 0 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 564 total, 408 in this make and model, 366 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 10 knots
- Visibility: 12 statute miles
- Lowest ceiling: 1,200 ft overcast
- Temperature: 156 °F

## FAA reports on this event (1)

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

- [Incident 19821205065689I](https://openairdocs.org/incident/19821205065689I), Dec 5, 1982: Piper PA23250, Washington, DC, Minor damage. Left main gear collapsed on the landing roll. No gear defects. Indicates pilot error. No pilot papers onboard.

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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