# NTSB LAX96LA260: Cessna P210N, N4844K, San Bernardino, CA, June 27, 1996

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 27, 1996, 16:00 local (23:00 UTC)
- Place: San Bernardino, CA
- Location: 34.0954° N, 117.2349° W: Placed by OpenAirDocs at SAN BERNARDINO INTL (SBD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0954&lon=-117.2349&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 10, 1996
- Report: Approved by Office Director
- NTSB case key (mKey): 29496
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX96LA260
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/29496/pdf
- Page: https://openairdocs.org/ntsb/LAX96LA260

## Probable cause

failure of the landing gear to go and/or remain in a down-and-locked condition for undetermined reason(s).

## Sequence of events

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

- Main gear collapsed, landing - roll
  - gear down and locked - not attained (cause)

## Analysis

The pilot said he put the landing gear down before entering the traffic pattern. He proceeded downwind and went through a prelanding checklist. He said the main gear was seen to be down, and the green gear down light had illuminated. He proceeded from base to final and to touchdown. The pilot reported that as the airplane touched down, the main gear partially collapsed, and the gear warning horn sounded. The airplane slid to the right, dragging the right wing tip and the right elevator tip. Afterwards, the landing gear system was functionally tested on the ground and in the air numerous times. No repairs or adjustments were required to the landing gear extension system.

## Factual narrative

On June 27, 1996, about 1600 hours Pacific daylight time, a Cessna P210N, N4844K, was substantially damaged after a landing gear collapsed while landing at the San Bernardino International Airport, San Bernardino, California.  The pilot was not injured.  Visual meteorological conditions prevailed for the personal flight and no flight plan was filed.  The flight originated at Upland, California, on the day of the accident at 1530 hours.

The pilot reported that prior to landing he went through the prelanding checklist.  He stated that the main gear was observed to be down and the green gear down light was on.  The pilot stated that as he touched down the main gear collapsed and the gear warning horn sounded.  The nose gear did not collapse.

Afterwards, the landing gear system was functionally tested on the ground and in the air numerous times.  There were no repairs or adjustments required.

## Aircraft

- Registration: [N4844K](https://openairdocs.org/aircraft/N4844K), registered now, S/N P21000344, built 1979 (OpenAirDocs)
- Reported make and model: Cessna P210N
- Registry model: [Cessna P210N](https://openairdocs.org/model/cessna-p210n) (registry code 2073454) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: P21000344
- Airframe hours: 3977
- Engines: Continental TSIO-520 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Francis Eugene Ferguson
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 24, 1996, 50 hours before
- Departed: CCB, UPLAND, CA
- Destination: SBD, CA
- Airport: SBD, San Bernardino Int'L, runway 24, 10,000 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 70; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 3,475 total, 2,700 in this make and model, 3,475 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 4 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 90 °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).

- [Accident 19960627015559A](https://openairdocs.org/incident/19960627015559A), Jun 27, 1996: Cessna P210N, San Bernadino, CA, Substantial damage. Main gear collapsed on landing. No gear defects found. Pilot reported had green gear down lights.

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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