# NTSB Accident SEA92LA072
> **PIPER PA-23-160** · 1992-04-10 · MISSOULA, MT, USA · NONE
## Event
- **NTSB number:** SEA92LA072
- **Event ID:** 20001211X14523
- **Type:** Accident
- **Date:** 1992-04-10
- **Location:** MISSOULA, MT, USA
- **Coordinates:** 46.850719, -113.989509
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** PA-23-160
- **Registration:** N3494P
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

PARTIAL BLOCKAGE OF THE LEFT ENGINE INDUCTION AIR FILTER, INABILITY TO MAINTAIN THE PROPER RATE OF DESCENT, AND DELAYED EXTENSION OF THE LANDING GEAR.  FACTORS CONTRIBUTING TO THE ACCIDENT WERE ICING CONDITIONS, WING ICE, AND ROUGH/UNEVEN TERRAIN.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA92LA072) · AI Analytics · CC0 1.0*