When should notification of an aircraft accident be made to the NTSB if there was substantial damage and no injuries?

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When weather information indicates that abnormally high barometric pressure exists, or will be above _____ inches of mercury, flight operations will not be authorized contrary to the requirements published in NOTAMs.

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Regulations which refer to the “operational control” of a flight are in relation to

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Portable electronic devices which may cause interference with the navigation or communication system may not be operated on a U.S.- registered civil aircraft being flown

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