Compiled Laws, Chapter 750. Michigan Penal Code § 750.44

Sec. 44.An aeronaut or passenger who, while in flight over a thickly inhabited area or over a public gathering engages in trick or acrobatic flying or in any acrobatic feat or, except while in landing or taking off, flies at such a low level as to endanger the persons on the surface beneath, or drop or release any object or thing that may endanger life or injure property except when necessary to the personal safety of the aeronaut or passenger, is guilty of a misdemeanor punishable by imprisonment for not more than 1 year or a fine of not more than $1,000.00.