Who holds what · as the FAA records the name

Graviner (Colnbrook) LTD.

Named as the FAA publishes it on its approvals.

Approved to make 4 classes of equipment. FAA spelling: Graviner (Colnbrook) Ltd..

Equipment approvals technical standard order authorisations

1990-01-01TSO-C11D · Powerplant Fire Detection Instruments (Thermal and Flame Contact Types) · *, *, * · other and general

TSO-C11A · Fire Detectors (Thermal Sensing And Flame Contact) · *, *, * · other and general

TSO-C11B · Fire Detectors (Thermal Sensing And Flame Contact) · *, *, * · other and general

TSO-C57A · Headsets And Speakers · *, *, * · other and general

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