Oman CAA IR(H) Practice Questions - Oman Civil Aviation Authority Instrument Rating Helicopter Theoretical Knowledge Examination Exam

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Under Oman CAA airworthiness regulations for IFR helicopter transport operations, what emergency electrical supply duration is required for the emergency standby attitude indicator?

At least 30 minutes following a total failure of the main electrical generation system At least 15 minutes to allow rapid visual descent At least 60 minutes for offshore flights exceeding 50 NM At least 10 minutes provided dual batteries are installed

Correct Answer:

At least 30 minutes following a total failure of the main electrical generation system

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