# NTSB Accident SEA91LA014
> **CESSNA 402B** · 1990-11-08 · POCATELLO, ID, USA · NONE
## Event
- **NTSB number:** SEA91LA014
- **Event ID:** 20001212X24701
- **Type:** Accident
- **Date:** 1990-11-08
- **Location:** POCATELLO, ID, USA
- **Coordinates:** 42.929576, -112.180267
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** 402B
- **Registration:** N1683T
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE LOSS OF ENGINE POWER DUE TO A BURNED PISTON RESULTING FROM ARCING AND PARTIAL FAILURE OF THE LEFT MAGNETO BECAUSE OF IMPROPER OVERHAUL, THE CONTAMINATION OF THE RIGHT MAGNETO AND IMPROPER ADJUSTMENT OF THE FUEL SYSTEM AT THE LAST MAJOR ENGINE OVERHAUL; POOR INFLIGHT PLANNING BY THE PILOT INS SELECTING THE WRONG RUNWAY; AND THE PREMATURE EXTENSION OF THE FLAPS AND LADNING GEAR CAUSING THE AIRCRAFT TO UNDERSHOOT THE RUNWAY.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA91LA014) · AI Analytics · CC0 1.0*