News

In a marked upturn in activity for Flight Conditions and Permit to fly approvals  requests, STC Twenty One Limited has processed approvals for both fixed wing and rotary wing flight…

As you will be aware the use of Halon has been phased out across the aircraft industry due to its harmful effects to the environment and the damage to the…

STC Twenty One Ltd is proud to announce this week that we have finished the certification for two Boeing 737 -800 aircraft to install and activate a CPDLC modification. CPDLC…

STC Twenty One Ltd made history today (8th April 2021) after successfully receiving the UK CAA’s first issued STC Certificate since the UK withdrawal from the EU. The STC approves…

About our AML STC ADS-B Out – Automatic Dependant Surveillance-Broadcast Mandate due date: 7th June 2020 (Europe, EASA) 1st January 2020 (USA, FAA) What is ADS-B? ADS-B is a broadcasting…

STC Twenty-One is delighted to receive the STC for Alternate Cargo Nets on a Saab 340 A & B. This will allow STC Twenty-One to use different bay configurations. This…