# NTSB LAX88DUG03: Stolp-Starduster Too SA-300-A, N1300S, Chino, CA, May 5, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: May 4, 1988, 19:15 local (May 5, 1988, 02:15 UTC)
- Place: Chino, CA
- Coordinates: 33.999713, -117.679298 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.9997&lon=-117.6793&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 11, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25717
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88DUG03
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25717/pdf
- Page: https://openairdocs.org/ntsb/LAX88DUG03

## Sequence of events

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

- Main gear collapsed, takeoff - roll/run
  - landing gear,main gear strut - failure,total (cause)
- On ground/water encounter with terrain/water, takeoff - roll/run
  - terrain condition - runway

## Analysis

DURING THE GROUND RUN FOR TAKE OFF, THE LEFT MAIN GEAR STRUT BROKE. THE MAIN LANDING GEAR COLLAPSED RESULTING IN SUBSTANTIAL DAMAGE. THE REASON FOR THE STRUT FAILURE WAS UNDETERMINED.

## Aircraft

- Registration: [N1300S](https://openairdocs.org/aircraft/N1300S), registered now, S/N 13, built 1967 (OpenAirDocs)
- Reported make and model: STOLP-STARDUSTER TOO SA-300-A
- Registry model: [Stolp-Starduster Too SA 300-A](https://openairdocs.org/model/stolp-starduster-too-sa-300-a) (registry code 86601TQ) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 13
- Airframe hours: 500
- Engines: CONTINENTAL O-470-R 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mattson, Jack R.
- Registered owner: Jack R Mattson
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, July 7, 1987, 4 hours before
- Airport: CNO, Chino, runway 21, 6,204 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; private; airplane ratings: multi-engine land, single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 787 total, 4 in this make and model, 783 as pilot in command, 4 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Lowest ceiling: none

## 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 19880504013029A](https://openairdocs.org/incident/19880504013029A), May 4, 1988: Amtrso STARDUSTER2, Chino, CA, Substantial damage. Left main gear broke off on takeoff roll. Homebuilt turned left and collapsed the right main gear also.

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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