# NTSB Accident ANC97TA148
> **Piper PA-18-150** · 1997-09-13 · SAINT MARY'S, AK, USA · NONE
## Event
- **NTSB number:** ANC97TA148
- **Event ID:** 20001208X08780
- **Type:** Accident
- **Date:** 1997-09-13
- **Location:** SAINT MARY'S, AK, USA
- **Coordinates:** 62.05989, -163.290298
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Piper
- **Model:** PA-18-150
- **Registration:** N7054
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The excessive pressure in the brake system resulting from heating of the recently serviced hydraulic fluid in the brake master cylinders, and the resultant locked brakes and inability to maintain directional control of the airplane.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC97TA148) · AI Analytics · CC0 1.0*