# NTSB Accident LAX97LA092
> **Crane THORP T-18** · 1997-01-25 · SAN DIEGO, CA, USA · FATL
## Event
- **NTSB number:** LAX97LA092
- **Event ID:** 20001208X07319
- **Type:** Accident
- **Date:** 1997-01-25
- **Location:** SAN DIEGO, CA, USA
- **Coordinates:** 32.550853, -117.040031
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Crane
- **Model:** THORP T-18
- **Registration:** N40918
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Installation by the pilot/owner of an unairworthy check valve in the fuel system of the amateur built aircraft, which resulted in inadequate fuel flow to the engine and subsequent engine failure.  A factor in the accident was the owner's operation of the aircraft with known deficiencies.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX97LA092) · AI Analytics · CC0 1.0*