SA1628GL
Installation of Bendix TCAS II system comprised of the following P/N's: TPA-81A, TCAS processor; KFS-578A, TCAS control; two MST-67A, Mode S Transpondrs; two IVA-81A, TA/VSI: two ANT-81A, TCAS antenna; and four Dorne and Margolin DMNI 50-2, Mode S ant ennae. (550 S/N 550-0001 THRU 550-0626). Held by Elliott Aviation Technical Products, which holds 57 approved modifications in all. Last revised July 12, 1991. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company
- Models
- 550
- Type certificate
- A22CE
- On this site
- Cessna 550 Citation II 500 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.