FAA · Supplemental Type Certificate
STC ST11853IB
Antenna Removal must be in accordance with Boeing Ireland Limited Change / Repair Approval Number BIL-00243-APP, Revision 00, dated September 16, 2024, or later EASA approved revisions. This change deactivates and removes a Global Communications Suite (GCS) system installed by FAA Supplemental Type Certificate (STC) ST02908NY (EASA STC 10059775).
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 (1)
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 ↗