hrs N7S0A PlillsbNlily ad Rgwa:m Usk 22 Jan 2010 Dar • Keystone Helicopter Corporation has installed Garmin GDL 69/69A system in accordance with STC# SR02424NY-D dated January 21. 2010. Instructions for Continued Airworthiness are found in report no. IC01421. Flight manual supplement FM01421 has