ST02717LA
Upgrade of T3CAS and installation of ACSS SafeRoute+TM ADS-B In System. Held by Aviation Communication and Surveillance Systems (Acss) LLC, which holds 40 approved modifications in all. Last revised June 4, 2025. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS
- Models
- A321-251NX, A321-252NX, A321-253NX, A321-271NX, A321-272NX, A321-253NY
- Type certificates
- A28NM, A28NM, A28NM, A28NM, A28NM, A28NM
- On this site
- Airbus A321 929 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 7, 2026.