14 cfr part 61 July 8, 2019 16 32 64 128 14 cfr part 61 private pilot 14 cfr part 61.153 14 cfr part 61 subpart e 14 cfr part 61.113 14 cfr part 61.56 14 cfr part 61.23 14 cfr part 61.57 14 cfr part 61.15 14 cfr part 61.64 14 cfr part 61.51 14 cfr part 61.197 14 cfr part 61.3 14 cfr part 61.53 14 cfr part 61.129 14 cfr part 61.65