ST11861AT
Installation of a new Control Wheel Push-to-Talk (PTT) switch with three positions and latchable in accordance with the MDL shown in the attached AML No. ST11861AT. Held by Fedex Express, which holds 11 approved modifications in all. Last revised December 12, 2024. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; The Boeing Company; The Boeing Company
- Models
- 757-200 Series, A300 B4-605R, A300 B4-622, A300 B4-622R, A300 F4-605R, 767-300F Series, 777F Series
- Type certificates
- A2NM, A35EU, A35EU, A35EU, A35EU, A1NM, T00001SE
- On this site
- Airbus A300 120 registered
Boeing 757 440 registered
Boeing 767 584 registered
Boeing 777 358 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 19, 2026.