# NTSB Accident SEA97LA030
> **Cessna 421B** · 1996-11-19 · OLYMPIA, WA, USA · NONE
## Event
- **NTSB number:** SEA97LA030
- **Event ID:** 20001208X07119
- **Type:** Accident
- **Date:** 1996-11-19
- **Location:** OLYMPIA, WA, USA
- **Coordinates:** 46.970031, -122.870567
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 3
## Aircraft
- **Make:** Cessna
- **Model:** 421B
- **Registration:** N8005Q
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAWN
- **Weather:** IMC
## Probable cause

inoperative deicing equipment, due to multiple wing boot holes and malfunctioning control/shuttle valves; subsequent build-up of airframe (wing) ice; and failure of the pilot to maintain adequate airspeed during the flare for landing. Factors relating to the accident included: the adverse weather (icing) conditions, and inadequate maintenance concerning the deicing equipment.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA97LA030) · AI Analytics · CC0 1.0*