CFI A&P
Exploring the world one toilet at a time.
A friend of mine has asked me to help steer him in the direction of developing their own STC, well technically modifying an existing STC but the modification is extensive enough that it meets the criteria of major alteration. I understand the academic process of getting a DER and the FSDO involved, but what can my friend expect to encounter with this?
Stolen picture for attention:
Stolen picture for attention: