# NTSB Accident LAX94LA091
> **CESSNA P210N** · 1994-01-10 · SAN MARTIN, CA, USA · SERS
## Event
- **NTSB number:** LAX94LA091
- **Event ID:** 20001206X00637
- **Type:** Accident
- **Date:** 1994-01-10
- **Location:** SAN MARTIN, CA, USA
- **Coordinates:** 37.100238, -121.599792
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** CESSNA
- **Model:** P210N
- **Registration:** N5384W
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

the pilot's improper aircraft preflight inspection, and his failure to use pitot heat during the takeoff in icing conditions, which led to a blocked pitot tube.  The blockage resulted in erroneous airspeed indications during the initial climb, which induced the pilot to reduce the aircraft pitch attitude to a point where the aircraft entered an uncorrected descent to ground impact.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX94LA091) · AI Analytics · CC0 1.0*