# NTSB Accident NYC91FA199
> **BEECH C23** · 1991-08-04 · PLEASANTVILLE, NJ, USA · FATL
## Event
- **NTSB number:** NYC91FA199
- **Event ID:** 20001212X17943
- **Type:** Accident
- **Date:** 1991-08-04
- **Location:** PLEASANTVILLE, NJ, USA
## Injuries
- **Highest injury:** FATL
- **Fatal:** 3
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** BEECH
- **Model:** C23
- **Registration:** N9375S
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

A POWER LOSS DUE TO A FAILED CRANKSHAFT, WHILE OPERATING OVER UNSUITABLE TERRAIN.  FACTORS RELATED TO THE ACCIDENT WERE, THE NIGHT CONDITIONS, THE FAILURE OF MAINTENANCE PERSONNEL TO DETECT THE CRACKS USING MAGNAFLUX INSPECTIONS, THE LACK OF ADEQUATE PROCEDURES/DIRECTIONS ON DETECTION OF CRACKS, AND THE LACK OF QUALIFICATIONS/CERTIFICATION FOR OPERATORS CONDUCTING NONDESTRUCTIVE TESTING.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC91FA199) · AI Analytics · CC0 1.0*