материалы проверки по факту невыплаты ???

[upahill]

Федеральная инспекция труда (Рострудинспекция) по Приморскому краю направила в транспортную прокуратуру края материалы проверки по факту невыплаты морякам зарплаты за несколько месяцев."

probe materials on(upon)??
"За несколько месяцев" куда впаять?

Federal Labour Inspectorate of Primorsky Krai has submitted probe materials(?) on several months’ sailors back pay to the regional transportation prosecutor's office??

Помогите, не справляюсь!

[%&$]

Option:
The Federal Labour Inspectorate of/based/located in the Primorsky Krai has submitted evidence gained/obtained as a result of resulting from the probe into the matter of sailors' several months back pay/pay arrears to the Regional Transportation Prosecutor's office.

[upahill]

Большое спасибо %&$!

[summertime knives]

findings of its probe