SA5209NM
Installation of Honeywell TCAS II system. STC SA4596NM-D required for provisions installment. STC SA5207NM and SA5208NM required for Mode S transponder and VSI/TRA displays installation. Held by Learjet INC, which holds 538 approved modifications in all. Last revised May 2, 2008. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Short Brothers PLC
- Models
- SD3-60
- Type certificate
- A41EU
- On this site
- Short Bros SD3 41 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 20, 2026.