# NTSB Accident SEA97LA186
> **Cessna 172M** · 1997-08-05 · LANGLEY, WA, USA · NONE
## Event
- **NTSB number:** SEA97LA186
- **Event ID:** 20001208X08746
- **Type:** Accident
- **Date:** 1997-08-05
- **Location:** LANGLEY, WA, USA
- **Coordinates:** 48.039451, -122.439247
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Cessna
- **Model:** 172M
- **Registration:** N73158
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A failed exhaust valve.  Factors were tailwind and excessive airspeed during the ensuing forced landing.  .

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA97LA186) · AI Analytics · CC0 1.0*