FAA · Supplemental Type Certificate
STC SA3825WE
Installation of replacement flexible fuel cell in wings. (U206 S/N U206-04074) (P206 S/N P206-0001 - P206-00647) (206 S/N 206-0001 thru 206-0137 except 206-0094; S/N 206-0094; 206-0138 thru206-0275)
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 (3)
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗