# NTSB LAX84LA296: Ginn Thorp T-18, N11HG, Lancaster, CA, May 17, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: May 17, 1984, 09:45 local (16:45 UTC)
- Place: Lancaster, CA
- Coordinates: 34.720741, -118.150177 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.7207&lon=-118.1502&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24265
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA296
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24265/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA296

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - fuel system,ram air/induction air - deteriorated (cause)
  - fuel system,carburetor - disabled (cause)
- Forced landing, landing
- Nose over, landing
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE ACFT LOST POWER AND NOSED OVER DURING A FORCED LANDING ON DESERT TERRAIN. AN INSPECTION OF THE ENGINE SHOWED THAT THE AUTOMOTIVE TYPE FILTER HAD DISINTEGRATED AND HAD BEEN INGESTED IN THE CARBURETOR. THE FILTER WAS 4 YEARS OLD. AFTER THE FILTER WAS REMOVED THE ENGINE RAN SUCCESSFULLY.

## Aircraft

- Registration: [N11HG](https://openairdocs.org/deregistered/N11HG-2007-02-28), registration cancelled 2007-02-28, S/N 437, built 1974 (OpenAirDocs)
- Reported make and model: GINN THORP T-18
- Registry model: [Ginn THORP T-18](https://openairdocs.org/model/ginn-thorp-t-18) (registry code 8951050) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 437
- Airframe hours: 664
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Howard & Elaine Ginn
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, March 18, 1984
- Departed: WJF, LANCASTER, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; private; airplane ratings: single-engine land; medical: class 3, expired; flight hours: 425 total, 406 in this make and model, 391 as pilot in command, 4 in the last 90 days

## Weather

- Conditions: Visual (VMC), Dawn
- Wind: 240° at 14 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °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 19840517017489A](https://openairdocs.org/incident/19840517017489A), May 17, 1984: Amtrth THORPT18, Lancaster, CA, Substantial damage. Automotive type engine air filter disintegrated into the carburetor stopped engine. Air filter installed for 4 yrs.

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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