31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

Figure 1 MINIMUM ACCESS SPACE REQUIRED BY PARAGRAPH 4.1.14.1.3 Where all forward facing or all aft facing seats are arranged such thatthere is a single access route from the aisle to a Type IV emergencyexit, then the projected exit aperture shall not be obstructed from theexit to the aisle (see Figure 2 and paragraph 5.4 of this Notice)NOTES:(1) Some incursion into the projection area of the emergency exit hatch,including its trim, may be acceptable so long as it can be shown that theincursion does not impair the rapid removal of the exit hatch.(2) The outboard armrest must not protrude across the exit aperture norimpede the removal of the exit hatch.4.1.4 Seats may only be located in line with a Type IV exit such that the seatback is within the projected exit aperture provided there is a spaceimmediately adjacent to the exit. Such a space shall project inboardfrom the exit a distance no less than the width of a passenger seat andbe so arranged as to provide two access routes between seat rows fromthe cabin aisle to the exit. (See paragraph 5.4 of this Notice.)30 May 2006 AN-79 P.4