The rules that use the category "<specific_aircraft_type-pl>" are:

<flight_id-not_creatable-pl>

<flight_noun-pl> of <digit-pl> <specific_aircraft_type-pl>

<flight_noun-pl> of <specific_aircraft_type-pl>

<flight_id-not_creatable>

<flight_noun> of <digit-pl> <specific_aircraft_type-pl>

<flight_noun> of <specific_aircraft_type-pl>

<flight_id-not_creatable-sing>

<flight_noun-sing> of <digit-pl> <specific_aircraft_type-pl>

<flight_noun-sing> of <specific_aircraft_type-pl>