The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Rocky Mountain Airways

Holds 3 approved modifications, most of them for the Dehavilland DHC-7. FAA spelling: Rocky Mountain Airways.

Approved modifications 3 · newest first

1982-08-31SA1514NM · Modification to the flap position indicator system. · DHC-7-100, DHC-7-102
1981-12-08SA219RM · Installation of two quick-removal poles in left side of aft baggage compartment to separate skis from baggage. · DHC-7-1, DHC-7-100, DHC-7-101
1978-01-23ST128RM · Installation of ground proximity warning system, Collins FPC-75. · DHC-7-100

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.