ST00067DE
Installation of a Single Honeywell FMZ-800 Flight Management System with TSO C-129 Class C3 Global Positioning System (GPS) Sensor Unit for GPS enroute, termincal, and non-precision approach operation. Held by Learjet INC, which holds 538 approved modifications in all. Last revised March 7, 2002. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- ATR - GIE Avions de Transport Régional; ATR - GIE Avions de Transport Régional
- Models
- ATR42-320, ATR72-212
- Type certificates
- A53EU, A53EU
- On this site
- Aerospatiale/Aeritalia ATR 42 16 registered
Aerospatiale ATR 72 9 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 26, 2026.