Federal Aviation Administration, DOT § 91.609

§ 91.607 Emergency exits for airplanes inscribe an ellipse 19 × 26 inches, eight carrying passengers for hire. additional occupants. (a) Notwithstanding any other provi- (3) For each additional window exit sion of this chapter, no person may op- that is not located over a wing but that erate a large airplane (type certificated otherwise complies with paragraph under the Civil Air Regulations effec- (b)(2) of this section, five additional oc- tive before April 9, 1957) in passenger- cupants. carrying operations for hire, with more (4) For each airplane having a ratio than the number of occupants— (as computed from the table in para- (1) Allowed under Civil Air Regula- graph (a) of this section) of maximum tions § 4b.362 (a), (b), and (c) as in effect number of occupants to number of on December 20, 1951; or exits greater than 14:1, and for each (2) Approved under Special Civil Air airplane that does not have at least Regulations SR–387, SR–389, SR–389A, one full-size, door-type exit in the side or SR–389B, or under this section as in of the fuselage in the rear part of the effect. cabin, the first additional exit must be a floor-level exit that complies with However, an airplane type listed in the paragraph (b)(1) of this section and following table may be operated with must be located in the rear part of the up to the listed number of occupants cabin on the opposite side of the fuse- (including crewmembers) and the cor- lage from the main entrance door. responding number of exits (including However, no person may operate an emergency exits and doors) approved airplane under this section carrying for the emergency exit of passengers or more than 115 occupants unless there is with an occupant-exit configuration such an exit on each side of the fuse- approved under paragraph (b) or (c) of lage in the rear part of the cabin. this section. (c) No person may eliminate any approved exit except in accordance with Maximum num- Corresponding ber of occupants number of exits the following: Airplane type including all authorized for (1) The previously authorized max- crewmembers passenger use imum number of occupants must be re- B–307 ...... 61 4 duced by the same number of addi- B–377 ...... 96 9 tional occupants authorized for that C–46 ...... 67 4 exit under this section. CV–240 ...... 53 6 CV–340 and CV–440 53 6 (2) Exits must be eliminated in ac- DC–3 ...... 35 4 cordance with the following priority DC–3 (Super) ...... 39 5 schedule: First, non-over-wing window DC–4 ...... 86 5 exits; second, over-wing window exits; DC–6 ...... 87 7 DC–6B ...... 112 11 third, floor-level exits located in the L–18 ...... 17 3 forward part of the cabin; and fourth, L–049, L–649, L–749 87 7 floor-level exits located in the rear of L–1049 series ...... 96 9 the cabin. M–202 ...... 53 6 M–404 ...... 53 7 (3) At least one exit must be retained Viscount 700 series ... 53 7 on each side of the fuselage regardless of the number of occupants. (b) Occupants in addition to those au- (4) No person may remove any exit thorized under paragraph (a) of this that would result in a ratio of max- section may be carried as follows: imum number of occupants to approved (1) For each additional floor-level exits greater than 14:1. exit at least 24 inches wide by 48 inches (d) This section does not relieve any high, with an unobstructed 20-inch- person operating under part 121 of this wide access aisleway between the exit chapter from complying with § 121.291. and the main passenger aisle, 12 additional occupants. § 91.609 Flight data recorders and (2) For each additional window exit cockpit voice recorders. located over a wing that meets the re- (a) No holder of an air carrier oper- quirements of the airworthiness stand- ating certificate or an operating cer- ards under which the airplane was type tificate may conduct any operation certificated or that is large enough to under this part with an aircraft listed

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in the holder’s operations specifica- that indicates the date of failure, and a tions or current list of aircraft used in placard is located in view of the pilot air transportation unless that aircraft to show that the flight recorder or complies with any applicable flight re- cockpit voice recorder is inoperative. corder and cockpit voice recorder re- (ii) For not more than an additional quirements of the part under which its 15 days, provided that the requirements certificate is issued except that the op- in paragraph (b)(5)(i) are met and that erator may— a certificated pilot, or a certificated (1) Ferry an aircraft with an inoper- person authorized to return an aircraft ative flight recorder or cockpit voice to service under § 43.7 of this chapter, recorder from a place where repair or certifies in the aircraft maintenance replacement cannot be made to a place records that additional time is required where they can be made; to complete repairs or obtain a replace- (2) Continue a flight as originally ment unit. planned, if the flight recorder or cock- (c)(1) No person may operate a U.S. pit voice recorder becomes inoperative civil registered, multiengine, turbine- after the aircraft has taken off; powered airplane or rotorcraft having a (3) Conduct an airworthiness flight passenger seating configuration, ex- test during which the flight recorder or cluding any pilot seats of 10 or more cockpit voice recorder is turned off to that has been manufactured after Octo- test it or to test any communications ber 11, 1991, unless it is equipped with or electrical equipment installed in the one or more approved flight recorders aircraft; or that utilize a digital method of record- (4) Ferry a newly acquired aircraft ing and storing data and a method of from the place where possession of it is readily retrieving that data from the taken to a place where the flight re- storage medium, that are capable of recorder or cockpit voice recorder is to cording the data specified in appendix be installed. E to this part, for an airplane, or ap- (b) Notwithstanding paragraphs (c) pendix F to this part, for a rotorcraft, and (e) of this section, an operator of this part within the range, accuracy, other than the holder of an air carrier and recording interval specified, and or a commercial operator certificate that are capable of retaining no less may— than 8 hours of aircraft operation. (1) Ferry an aircraft with an inoperative flight recorder or cockpit voice (2) All airplanes subject to paragraph recorder from a place where repair or (c)(1) of this section that are manufac- replacement cannot be made to a place tured before April 7, 2010, by April 7, where they can be made; 2012, must meet the requirements of (2) Continue a flight as originally § 23.1459(a)(7) or § 25.1459(a)(8) of this planned if the flight recorder or cock- chapter, as applicable. pit voice recorder becomes inoperative (3) All airplanes and rotorcraft sub- after the aircraft has taken off; ject to paragraph (c)(1) of this section (3) Conduct an airworthiness flight that are manufactured on or after test during which the flight recorder or April 7, 2010, must meet the flight data cockpit voice recorder is turned off to recorder requirements of § 23.1459, test it or to test any communications § 25.1459, § 27.1459, or § 29.1459 of this or electrical equipment installed in the chapter, as applicable, and retain at aircraft; least the last 25 hours of recorded in- (4) Ferry a newly acquired aircraft formation using a recorder that meets from a place where possession of it was the standards of TSO–C124a, or later re- taken to a place where the flight revision. corder or cockpit voice recorder is to (d) Whenever a flight recorder, re- be installed; or quired by this section, is installed, it (5) Operate an aircraft: must be operated continuously from (i) For not more than 15 days while the instant the airplane begins the the flight recorder and/or cockpit voice takeoff roll or the rotorcraft begins recorder is inoperative and/or removed lift-off until the airplane has com- for repair provided that the aircraft pleted the landing roll or the rotorcraft maintenance records contain an entry has landed at its destination.

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(e) Unless otherwise authorized by (2) If transport category, meets the the Administrator, after October 11, requirements of § 25.1457(a)(3), (a)(4), 1991, no person may operate a U.S. civil and (a)(5) of this chapter. registered multiengine, turbine-pow- (i) All airplanes or rotorcraft re- ered airplane or rotorcraft having a quired by this section to have a cockpit passenger seating configuration of six voice recorder and flight data recorder, passengers or more and for which two that are manufactured on or after pilots are required by type certifi- April 7, 2010, must have a cockpit voice cation or operating rule unless it is recorder installed that also— equipped with an approved cockpit (1) Is installed in accordance with the voice recorder that: requirements of § 23.1457 (except for (1) Is installed in compliance with § 23.1457(a)(1) and (2), (b), (c), (d)(1)(i), paragraphs (a)(6) and (d)(5)); § 25.1457 (2) and (3), (e), (f), and (g); § 25.1457(a)(1) (except for paragraphs (a)(6) and (d)(5)); and (2), (b), (c), (d)(1)(i), (2) and (3), (e), § 27.1457 (except for paragraphs (a)(6) (f), and (g); § 27.1457(a)(1) and (2), (b), and (d)(5)); or § 29.1457 (except for para- (c), (d)(1)(i), (2) and (3), (e), (f), and (g); graphs (a)(6) and (d)(5)) of this chapter, or § 29.1457(a)(1) and (2), (b), (c), (d)(1)(i), as applicable; and (2) and (3), (e), (f), and (g) of this chap- (2) Retains at least the last 2 hours of ter, as applicable; and recorded information using a recorder (2) Is operated continuously from the that meets the standards of TSO–C123a, use of the checklist before the flight to or later revision. completion of the final checklist at the (3) For all airplanes or rotorcraft end of the flight. manufactured on or after April 6, 2012, (f) In complying with this section, an also meets the requirements of approved cockpit voice recorder having § 23.1457(a)(6) and (d)(5); § 25.1457(a)(6) an erasure feature may be used, so that and (d)(5); § 27.1457(a)(6) and (d)(5); or at any time during the operation of the § 29.1457(a)(6) and (d)(5) of this chapter, recorder, information recorded more as applicable. than 15 minutes earlier may be erased (j) All airplanes or rotorcraft re- or otherwise obliterated. quired by this section to have a cockpit (g) In the event of an accident or oc- voice recorder and a flight data re- currence requiring immediate notifica- tion to the National Transportation corder, that install datalink commu- Safety Board under part 830 of its regu- nication equipment on or after April 6, lations that results in the termination 2012, must record all datalink messages of the flight, any operator who has in- as required by the certification rule ap- stalled approved flight recorders and plicable to the aircraft. approved cockpit voice recorders shall (k) An aircraft operated under this keep the recorded information for at part under deviation authority from least 60 days or, if requested by the Ad- part 125 of this chapter must comply ministrator or the Board, for a longer with all of the applicable flight data period. Information obtained from the recorder requirements of part 125 appli- record is used to assist in determining cable to the aircraft, notwithstanding the cause of accidents or occurrences such deviation authority. in connection with the investigation under part 830. The Administrator does [Doc. No. 18334, 54 FR 34318, Aug. 18, 1989, as not use the cockpit voice recorder amended by Amdt. 91–226, 56 FR 51621, Oct. record in any civil penalty or certifi- 11, 1991; Amdt. 91–228, 57 FR 19353, May 5, 1992; Amdt. 91–300, 73 FR 12564, Mar. 7, 2008; cate action. Amdt. 91–304, 73 FR 73178, Dec. 2, 2008; Amdt. (h) All airplanes required by this sec- 91–300, 74 FR 32800, July 9, 2009; Amdt. 91–313, tion to have a cockpit voice recorder 75 FR 17045, Apr. 5, 2010] and a flight data recorder, that are manufactured before April 7, 2010, must § 91.611 Authorization for ferry flight by April 7, 2012, have a cockpit voice with one engine inoperative. recorder that also— (a) General. The holder of an air car- (1) Meets the requirements of rier operating certificate or an oper- § 23.1457(d)(6) or § 25.1457(d)(6) of this chapter, as applicable; and ating certificate issued under part 125

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