ST00094AT
Installation of TRA-67 Mode S transponder and CAS-81 Traffic Alert and Collision Avoidance System (TCAS II). Held by Honeywell International INC, which holds 599 approved modifications in all. Last revised January 4, 2022. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- DC-8-62
- Type certificate
- 4A25
- 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 21, 2026.