Normal category airplane
An aircraft that is certificated under 14 CFR part 23 that is not certificated under the acrobatic, utility, or commuter category.
Aviation Maintenance Technician Handbook — Powerplant, p. G-19
An aircraft that is certificated under 14 CFR part 23 that is not certificated under the acrobatic, utility, or commuter category.
Aviation Maintenance Technician Handbook — Powerplant, p. G-19