# NTSB LAX83LA358: Laister LK10, N53619, Jacumba, CA, July 24, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 24, 1983, 15:00 local (22:00 UTC)
- Place: Jacumba, CA
- Location: 32.6358° N, 116.1907° W: Placed by OpenAirDocs: center of Jacumba, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.6358&lon=-116.1907&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23800
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA358
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23800/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA358

## Sequence of events

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

- Undershoot, approach - vfr pattern - final approach
  - weather condition - gusts (contributing factor)
  - weather condition - windshear (contributing factor)
  - distance - misjudged, dual student (cause)
  - altitude - misjudged, dual student (cause)
  - airspeed - misjudged, dual student (cause)
  - supervision - inadequate, pilot in command(cfi) (cause)
  - lack of recent experience in type of aircraft, pilot in command(cfi) (contributing factor)
- On ground/water collision with object, approach - vfr pattern - final approach

## Analysis

THE ACFT STRUCK A BUSH DURING A LANDING SHORT OF THE RWY. THE INSTRUCTOR IN THE REAR SEAT NOTED THAT THE AIRSPEED INDICATOR AT THAT POSITION DID NOT REGISTER BELOW 60 MPH BY DESIGN. THE INSTRUCTOR HAD NO RECENT EXPERIENCE IN THIS MAKEOF ACFT AND HAD NO FEELING FOR AIRSPEED IN IT. HE SAW THE ACFT WAS LOW AND SLOW AND REACHED TO CLOSE THE DIVE BRAKES AS THE ACFT STARTED TO SETTLE. THE ACFT IMPACTED A BUSH WITH THE LEFT WING AND GROUNDLOOPED COMING TO REST SHORT OF RWY 25.THE INSTRUCTOR OBSERVED THAT THERE WERE WIND SHEAR CONDITIONS AT THE TIME AND GUSTS TO 20 KTS.

## Aircraft

- Registration: [N53619](https://openairdocs.org/aircraft/N53619), registered now, S/N 48 (OpenAirDocs)
- Reported make and model: LAISTER LK10
- Registry model: [Laister-Kauffman LK-10A](https://openairdocs.org/model/laister-kauffman-lk-10a) (registry code 5090204) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Serial number: 48
- Airframe hours: 717
- Engines: unknown
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Fronius Fronius
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 1, 1983, 9 hours before
- Airport: L78, Jacumba, runway 25, 2,985 × 133 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; flight instructor, commercial; airplane ratings: multi-engine land; medical: class 3, valid medical--no waivers/lim.; seat: rear; flight hours: 419 total, 71 in this make and model, 400 as pilot in command, 13 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 10 knots, gusting 20
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 100 °F, dew point -0 °F

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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