FAA · Supplemental Type Certificate
STC ST04752NY
Replacement of Dual Analog Radio Altimeter Transceivers with Dual 5G Tolerant Collins Aerospace or Honeywell Digital Radio Altimeters Transceivers and Dual Shadin Digital-to-Analog Converters. S
What is an STC?
A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.
Applicable aircraft (9)
- A16WE The Boeing Company · 737-300 Series
- A16WE The Boeing Company · 737-400 Series
- A16WE The Boeing Company · 737-500 Series
- A6WE The Boeing Company · DC-9-81 (MD-81)
- A6WE The Boeing Company · DC-9-82 (MD-82)
- A6WE The Boeing Company · DC-9-83 (MD-83)
- A6WE The Boeing Company · DC-9-87 (MD-87)
- A6WE The Boeing Company · MD-88
- A6WE The Boeing Company · MD-90-30
Certification basis — 14 CFR
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗