# NTSB Accident SEA99LA101
> **Cessna 172P** · 1999-07-03 · AUBURN, WA, USA · SERS
## Event
- **NTSB number:** SEA99LA101
- **Event ID:** 20001212X19363
- **Type:** Accident
- **Date:** 1999-07-03
- **Location:** AUBURN, WA, USA
- **Coordinates:** 47.310756, -122.220878
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Cessna
- **Model:** 172P
- **Registration:** N531PC
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Total mechanical failure of the hydraulic tappet.  A factor was an overdue major overhaul per manufacturer's recommendations.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA99LA101) · AI Analytics · CC0 1.0*