# NTSB LAX90DUG06: Sabelino KR-2, N359GS, Chino, CA, May 26, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: May 26, 1990, 09:38 local (16:38 UTC)
- Place: Chino, CA
- Coordinates: 34.000804, -117.680519 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0008&lon=-117.6805&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 26535
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX90DUG06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26535/pdf
- Page: https://openairdocs.org/ntsb/LAX90DUG06

## Probable cause

FAILURE OF THE BRAKE SYSTEM FOR UNDETERMINED REASONS RESULTING IN THE PILOT LOSING DIRECTIONAL CONTROL DURING LANDING AND VEERING OFF THE RUNWAY.

## 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,normal brake system - failure,partial (cause)
  - landing gear,normal brake system - undetermined (cause)
- Loss of control - on ground/water, landing - roll
  - directional control - not possible, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ground

## Analysis

THE PILOT OF A HOMEBUILT MADE A NORMAL LANDING AND ROLLOUT. AT A SPEED OF ABOUT 25 TO 30 MPH THE AIRCRAFT SUDDENLY VEERED OFF THE RUNWAY DESPITE FULL APPLICATION OF RIGHT BRAKE AND RIGHT RUDDER. THE WINDS WERE NOT REPORTED. THE ACCIDENT REPORT INDICATED AN UNSPECIFIED FAILURE OR MALFUNCTION WITH THE BRAKE ASSEMBLY.

## Aircraft

- Registration: [N359GS](https://openairdocs.org/deregistered/N359GS-1991-12-23), registration cancelled 1991-12-23, S/N 3026 (OpenAirDocs)
- Reported make and model: SABELINO KR-2
- Registry model: [Sabeline Agustin C KR 2](https://openairdocs.org/model/sabeline-agustin-c-kr-2) (registry code 05648YN) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 3026
- Engines: REVMASTER 2100-D 75 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Augustin C. Sabelino
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, November 30, 1989
- Airport: CNO, Chino, runway 26, 3,856 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left

## Weather

- Conditions: Visual (VMC), Day

## 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 19900526017539A](https://openairdocs.org/incident/19900526017539A), May 26, 1990: Amtr KR2, Chino, CA, Substantial damage. Veered off runway and overturned in soft dirt. Home built test flight.

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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