# NTSB MIA87IA011: Cessna 310R, N2638N, West Palm Beach, FL, October 18, 1986

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: October 18, 1986, 12:48 local (16:48 UTC)
- Place: West Palm Beach, FL
- Coordinates: 26.660968, -80.090476 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=26.6610&lon=-80.0905&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 6 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31786
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87IA011
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31786/pdf
- Page: https://openairdocs.org/ntsb/MIA87IA011

## Sequence of events

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

- Main gear collapsed, landing - flare/touchdown
  - landing gear,main gear - failure,total (cause)
  - procedures/directives - exceeded, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

WHILE ON AN ON-DEMAND AIR-TAXI FLIGHT THE PILOT NOTED THAT AT TOUCHDOWN THE RT MAIN GEAR WAS COLLAPSING. HE EXECUTED A GO-AROUND AND ATTEMPTED TO LOWER THE GEAR MANUALLY, BUT COULD NOT. THE PILOT THEN SHUT DOWN THE RIGHT ENGINE AND FEATHERED THE RIGHT PROPELLER AND LANDED. THE RIGHT GEAR COLLAPSED UPON LANDING ROLL. EXAMINATION REVEALED THAT THE ADJUSTABLE SCREW ON THE DOWNLOCK BRACE FAILED IN BENDING OVERLOAD.

## Aircraft

- Registration: [N2638N](https://openairdocs.org/deregistered/N2638N-2007-10-11), registration cancelled 2007-10-11, S/N 310R1664, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 310R
- Registry model: [Cessna T310R](https://openairdocs.org/model/cessna-t310r) (registry code 2074246) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 310R1664
- Airframe hours: 1175
- Engines: CONTINENTAL TSIO-520-BB 285 horsepower reciprocating
- Damage: Minor damage
- Flight: Part 135
- Registered owner: Chandelle Aviation
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 26, 1986, 26 hours before
- Departed: X04, ORLANDO, FL
- Flight plan: VFR
- Airport: PBI, West Palm Beach, runway 9L, 7,989 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 2,130 total, 65 in this make and model, 1,920 as pilot in command, 285 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 30° at 14 knots, gusting 20
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 61 °F
- Altimeter: 30.00 inHg
- Observed at: PBI

## 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 19861018081789I](https://openairdocs.org/incident/19861018081789I), Oct 18, 1986: Cessna T310R, West Palm Beach, FL, Minor damage. Returned to departure point with suspected gear problem. Right main collapsed on landing. Downlock screw had failed

## Other investigations on N2638N (2)

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.

- [NTSB MIA89LA075](https://openairdocs.org/ntsb/MIA89LA075), Jan 28, 1989: Cessna T310R (N2638N), Pensacola, FL, substantial damage. Probable cause: FAILURE OF THE PILOT TO MAINTAIN THE PROPER AIRSPEED DURING THE APPROACH RESULTING IN LANDING SHORT OF THE RUNWAY AND FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING THE LANDING ROLL.
- [NTSB MIA85LA157](https://openairdocs.org/ntsb/MIA85LA157), Apr 24, 1985: Cessna T310R (N2638N), Boca Raton, FL, substantial damage

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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