Hot Air Check Valve - Inspection and Modification
Hot Air Check Valve - Inspection and Modification, 20 Amdt 1, 8/1978, CASA, GAF-N22-020.pdf, GAF-N22, Aircraft below 5700 kg, UNDER, UNDER, 7689, Nomad TC (GAF) N22 and N24 Series Aeroplanes, AD/GAF-N22/, 98.00