SA5604SW
Installation of dual Sperry AZ-800 Air Data Systems with dual IDC 534-35405-212 airspeed/mach indicators and dual IDC 527-48707-004 reverting altimeters or alternate Sperry Airspeed and altimeter indicators. Held by Textron Aviation INC, which holds 723 approved modifications in all. Last revised January 25, 2017. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bombardier Inc.; Bombardier Inc.
- Models
- CL-600-1A11 (CL-600), CL-600-2A12 (CL-601)
- Type certificates
- A21EA, A21EA
- On this site
- Bombardier CL-600 Challenger and CRJ 1,655 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 21, 2026.