Cobham RJ1H near Adelaide on Aug 30th 2018, two engines vibrated

Last Update: September 20, 2018 / 17:43:22 GMT/Zulu time

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Incident Facts

Date of incident
Aug 30, 2018


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A Cobham Aviation Avro RJ-100, registration VH-NJY performing flight NC-219 from Prominent Hill,SA to Port Augusta,SA (Australia), was enroute at FL250 when the crew received an engine vibration warning concerning engine #4 (LF507, right outboard), the engine was vibrating at 1.8 units (limit 1.2 units), at the same time the crew noticed ice build up at the wind screen. The crew worked the related checklists, before the checklist was completed the vibrations ceased. Shortly afterwards another engine vibration occurred, this time engine #2 (left inboard) showed 2.1 units of vibrations. Considering the weather conditions and icing conditions the crew decided to descend the aircraft to FL190 into warmer air, the vibrations ceased. In consultation with dispatch the crew decided to divert to Adelaide,SA (Australia), where the aircraft landed without further incident.

The Australian TSB reported they had opened an investiation but now discontinued the investigation as there was no indications of a systemic safety issue. The ATSB reported signficiant weather with severe turbulence and icing was forecast along the route. The flight crew was aware of the SIGMET, the actual conditions were matching the SIGMET. The crew had activated engine anti-ice prior to the occurrence, this and fuselage anti-ice systems were working properly.
Aircraft Registration Data
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Date of Registration
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Airworthyness Category
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TCDS Ident. No.
Aircraft Model / Type
AVRO 146-RJ100
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Engine Count
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Main Owner
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Main Operator
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Incident Facts

Date of incident
Aug 30, 2018


Flight number

Aircraft Registration

ICAO Type Designator

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