ST01758WI
Installation of the Honeywell Aircraft Communications Addressing and Reporting System (ACARS) Communications Management Unit (CMU) with Protected Mode - Controller Pilot Data Link Communications (PM-CPDLC) and data link recording features, the Honeywell Very High Frequency (VHF) Communications Radio and the Honeywell Digital Flight Data Recorder (DFDR). Held by Honeywell International INC, which holds 599 approved modifications in all. Last revised March 26, 2020. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 757-200 Series
- Type certificate
- A2NM
- On this site
- Boeing 757 440 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.