# NTSB Accident ANC95LA075
> **HUGHES 500D** · 1995-06-12 · KETCHIKAN, AK, USA · MINR
## Event
- **NTSB number:** ANC95LA075
- **Event ID:** 20001207X03585
- **Type:** Accident
- **Date:** 1995-06-12
- **Location:** KETCHIKAN, AK, USA
- **Coordinates:** 55.609596, -131.580261
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 4
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** HUGHES
- **Model:** 500D
- **Registration:** N549SW
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

AN AIR LEAK AT A 'B' NUT FITTING ON A PNEUMATIC PC TUBE TO THE POWER TURBINE GOVERNOR.  COMPANY MAINTENANCE PERSONNEL DID NOT DETECT A LEAK AFTER PERFORMING MAINTENANCE ON THE GOVERNER AND P2 AIR LINE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC95LA075) · AI Analytics · CC0 1.0*