# NTSB Accident LAX92LA042
> **BEECH D18S** · 1991-11-10 · HILO, HI, USA · NONE
## Event
- **NTSB number:** LAX92LA042
- **Event ID:** 20001212X18473
- **Type:** Accident
- **Date:** 1991-11-10
- **Location:** HILO, HI, USA
- **Coordinates:** 19.68983, -155.079071
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 11
- **Total aboard:** 11
## Aircraft
- **Make:** BEECH
- **Model:** D18S
- **Registration:** N4193
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE AIRCRAFT'S LACK OF SINGLE ENGINE PERFORMANCE TO MAINTAIN ALTITUDE AFTER THE ENGINE LOST POWER.  FACTORS RELATED TO THE ACCIDENT WERE: DISPLACEMENT/MECHANICAL INTERFERENCE WITHIN THE ACCESSORY DRIVE GEAR SYSTEM OF THE LEFT ENGINE, FAILURE OF THE LEFT ENGINE ACCESSORY DRIVE GEAR SHAFT, AND THE FAA'S INADEQUATE CERTIFICATION/APPROVAL OF THE OPERATOR, IN ORDER TO ASSURE COMPLIANCE WITH 14 CFR 135 CONCERNING THE ENGINE-OUT CAPABILITY.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX92LA042) · MORVS · CC0 1.0*