ST02641LA
Installation of the Aviation Communication & Surveillance Systems (ACSS) Surveillance Processor (TCAS Change 7.1), TCAS Directional Antennas, NXT-800 Mode S/ADS-B Out Transponders and Gables Engineering ATC/TCAS Control Panel systems. Held by Aviation Communication and Surveillance Systems (Acss) LLC, which holds 40 approved modifications in all. Last revised January 29, 2021. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company
- Models
- 737-300 Series, 737-400 Series
- Type certificates
- A16WE, A16WE
- On this site
- Boeing 737 2,887 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.