Commercial PTS

Question 1

Required Airworthiness and certificates for Airplane

Answer 1

A-AD's (once, reoccurring, immediately)
V-VOR (30 days)
I-100hr/Annual (12 cal. Months)
A-Altimeter (24 Cal. Months)
T-Transponder (24 Cal. Months)
E-ELT(12 Cal. Months/half of it's battery life, or 1 cumulative hour is used)
S-Static Source (24 calendar months)