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pdf Gfa ad 516 issue 1 Popular

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Gfa ad 516 issue 1

RECORDING OF FLYING TIME

Based on fatigue tests performed in Poland the life time of the KR-03A is limited to 5000 hours. Since aerobatic manoeuvres lead to significantly higher loads compared to conventional flying, these manoeuvres also have a different impact on the total life time of the sailplane. Therefore, the manufacturer introduced a different recording procedure for the glider log book to determine a more accurate fatigue status of the sailplane. Flying hours have to be determined according to Bulletin No. BE-35/KR-03A/99. The basic implementation is that aerobatic flying time has got 5 times higher fatigue loads compared to conventional flying time. Thus, every time aerobatics are performed the actual flying time has to be multiplied by 6 in the log book (ie. 15 Minutes aerobatic flying have to be recorded as 6 x 15 = 90 Minutes in the log book). Older records have to be re-calculated allocating the recorded flying time for aerobatic flying plus 5 times this time (ie. 15 Minutes of aerobatic flying in the log book have to be multiplied by 5 and then added to the original time 5 x 15 + 15 = 90 Minutes). Conventional flights have to be recorded as per usual. WSK Mandatory Bulletin No. BE-35/KR-03A/99 which herewith becomes part of this AD.