In the database, under the series "Sikorsky UH-60A Black Hawk", we have variances in the format for the serial numbers.
For example
78-22982 70.0045
78-22986 70-049 (as Scramble)
78-22991 70054 (as Joe Baugher)
Is anyone able to shed any light upon the reason for these differences please?
Malcolm Clarke.