FAA · Supplemental Type Certificate
STC ST01554AT
Increasing data recording parameters to 17/18 parameters on digital flight data recorders (DFDR), for L-3 Com (formerly Loral/Fairchild) DFDR, and Allied Signal DFDR part numbers identified by this STC,
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 ↗