# Incident 20030411004349I: Snias AS350B2, Juneau, AK, April 11, 2003

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: April 11, 2003, 17:45 local time
- Place: Juneau, AK
- Phase of flight: Normal Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: HXSA
- Location: 58.3019° N, 134.4197° W: Placed by OpenAirDocs: center of Juneau, AK, within about 29 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=58.3019&lon=-134.4197&mi=10
- Aircraft: N6302Y, registered now (https://openairdocs.org/aircraft/N6302Y) (OpenAirDocs)
- Registry model: Eurocopter AS 350 B2 (registry code 8680950, https://openairdocs.org/model/eurocopter-as-350-b2) (OpenAirDocs)
- Registry engine: Turbomeca ARRIEL-1SER (registry code 60030, https://openairdocs.org/engine/turbomeca-arriel-1ser) (OpenAirDocs)
- Reported make and model: SNIAS AS350B2
- Reported engine: TMECA ARRIEL1D1
- People aboard: 7
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20030411004349I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) EXPERIENCED GRADUAL LOSS OF OIL PRESSURE IN FLIGHT. DECLARED EMERGENCY AND MADE PRECAUTIONARY LANDING ON THE BEACH. DISCOVERED THAT REAR BEARING SCAVENGE LINE WAS BLOCKED. ENGINE WAS REPLACED AND AIRCRAFT RETURNED TO SERVICE. THIS ENGINE INCORPORATES FACTORY MODIFICATIONS TO THE REAR BEARING LUBRICATION SYSTEM THAT IS SUPPOSED TO MAKE IT UNNECESSARY TO PERFORM PERIODIC CLEANING AND INSPECTION OF REAR BEARING FOR COKING. THIS IS THE SECOND OCCURRENCE FOR THIS OPERATOR OF OIL SYSTEM BLOCKAGE AS A RESULT OF COKING OF THE REAR BEARING ON THE MODIFIED ENGINES. THIS OPERATOR HAS DECIDED TO RETURN TO 1000 HOUR INTERVALS FOR CLEANING OF REAR BEARING AS REQUIRED FOR UNMODIFIED ENGINES. A SERVICE DIFFICULTY REPORT HAS BEEN SUBMITTED DETAILING THE PROBLEMS ASSOCIATED WITH THE REAR BEARING COKING OF MODIFIED ENGINES.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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