List the tail numbers of all the aircraft that arrived on time at Meadows Field airport in August of 2018?
tail number refers to TAIL_NUM; arrived on time refers to ARR_DELAY < = 0; Meadows Field airport refers to Description = 'Bakersfield, CA: Meadows Field'; in August of 2018 refers to FL_DATE like '2018/8%';
SELECT T2.TAIL_NUM FROM Airports AS T1 INNER JOIN Airlines AS T2 ON T1.Code = T2.DEST WHERE T2.FL_DATE LIKE '2018/8%' AND T1.Description = 'Bakersfield, CA: Meadows Field' AND T2.DEST = 'BFL' AND T2.ARR_DELAY <= 0 GROUP BY T2.TAIL_NUM