# NTSB Accident LAX91LA414
> **LET L-13** · 1991-09-29 · ADELANTO, CA, USA · NONE
## Event
- **NTSB number:** LAX91LA414
- **Event ID:** 20001212X18140
- **Type:** Accident
- **Date:** 1991-09-29
- **Location:** ADELANTO, CA, USA
- **Coordinates:** 34.659194, -117.509162
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** LET
- **Model:** L-13
- **Registration:** N86661
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

IMPROPER PLANNING/DECISION BY THE PILOT.  LOSS OF THERMAL LIFT WAS A RELATED FACTOR.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX91LA414) · AI Analytics · CC0 1.0*