# NTSB Incident ANC00IA063
> **Piper PA-31-350** · 2000-06-01 · TANANA, AK, USA · NONE
## Event
- **NTSB number:** ANC00IA063
- **Event ID:** 20001212X21136
- **Type:** Incident
- **Date:** 2000-06-01
- **Location:** TANANA, AK, USA
- **Coordinates:** 65.18048, -152.069778
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 5
- **Total aboard:** 5
## Aircraft
- **Make:** Piper
- **Model:** PA-31-350
- **Registration:** N3536B
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

An in-flight oil leak due to the deterioration of oil filter adapter plate gasket material, and the supplier's distribution of inadequate material.  A factor associated with the accident was the engine manufacturer's inadequate quality control.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC00IA063) · AI Analytics · CC0 1.0*