Federal Aviation Administration, DOT Section 121.400 (2) At least one floor level exit remains open to provide for passenger egress; and (3) The number of flight attendants on board is at least half the number required by Section 121.391, rounded down to the next lower number in the case of fractions, but never fewer than one. (c) If only one flight attendant is on the airplane during passenger boarding or deplaning, that flight attendant must be located in accordance with the certificate holder-s FAA-approved operating procedures. If more than one flight attendant is on the airplane during passenger boarding or deplaning, the flight attendants must be evenly distributed throughout the airplane cabin, in the vicinity of the floor-level exits, to provide the most effective assistance in the event of an emergency. (d) The time spent by any crewmember conducting passenger boarding or deplaning duties is considered duty time. [Doc. No. FAA-2009-0022, 75 FR 68198, Nov. 5, 2010] Section 121.395 Aircraft dispatcher: Domestic and flag operations. Each certificate holder conducting domestic or flag operations shall provide enough qualified aircraft dispatchers at each dispatch center to ensure proper operational control of each flight. [Doc. No. 28154, 61 FR 2611, Jan. 26, 1996] Section 121.397 Emergency and evacuation duties. emergency (a) Each certificate holder shall, for each type and model of airplane, assigned to each category of required crewmember, as appropriate, the necessary functions to be performed in an emergency or a situation requiring emergency evacuation. The certificate holder shall show those functions are realistic, can be practically accomplished, and will meet any reasonably anticipated emergency including the possible incapacitation of individual crewmembers or their inability to reach the passenger cabin because of shifting cargo in combination cargopassenger airplanes. (b) The certificate holder shall describe in its manual the functions of each category of required crewmembers under paragraph (a) of this section. [Doc. No. 2033, 30 FR 3206, Mar. 9, 1965, as amended by Amdt. 121-7, 30 FR 6727, May 18, 1965] Subpart N - Training Program SOURCE: Docket No. 9509, 35 FR 90, Jan. 3, 1970, unless otherwise noted. Section 121.400 Applicability and terms used. (a) This subpart prescribes the requirements applicable to each certificate holder for establishing and maintaining a training program for crewmembers, aircraft dispatchers, and other operations personnel, and for the approval and use of training devices in the conduct of the program. (b) For the purpose of this subpart, airplane groups are as follows: (1) Group I. Propeller driven, including - (i) Reciprocating powered; and (ii) Turbopropeller powered. (2) Group II. Turbojet powered. (c) For the purpose of this subpart, the following terms and definitions apply: (1) Initial training. The training required for crewmembers and dispatchers who have not qualified and served in the same capacity on another airplane of the same group. (2) Transition training. The training required for crewmembers and dispatchers who have qualified and served in the same capacity on another airplane of the same group. (3) Upgrade training. The training required for crewmembers who have qualified and served as second in command or flight engineer on a particular airplane type, before they serve as pilot in command or second in command, respectively, on that airplane. (4) Differences training. The training required for crewmembers and dispatchers who have qualified and served on a particular type airplane, when the Administrator finds differences training is necessary before a crewmember serves in the same capacity on a particular variation of that airplane. (5) Programmed hours. The hours of training prescribed in this subpart 155 VerDate Sep<11>2014 08:20 May 17, 2019 Jkt 247048 PO 00000 Frm 00165 Fmt 8010 Sfmt 8010 Y:\SGML\247048.XXX 247048