Status Subject Contact; Detail Letov Reference information LF 107 LUNAK M Continued Airworthiness M Flight envelope Flight envelope General overhaul in accordance with procedures approved by CAA-CZ in 1992 restricted flight envelope (aerobatics prohibited) Revised BGA limitations and reinstatement of aerobatic status after inspection BGA 054/04/2013 Airworthiness directive information not available TNS 5-2010 5-2010 Page 1 BGA Compendium 09/13