Se sidan 9 av TCDS A.064 BILAGA - Airbus A318, A319, A320, A321 - Särskilda villkor
TCDS A.064 ANNEX - Airbus A318, A319, A320, A321 - Special Conditions
EQUIVALENT SAFETY FINDING E-2107: Passenger Extension to 180 APPLICABILITY: A320 REQUIREMENTS: JAR 25.807 ADVISORY MATERIAL: N/AStatement of Issue:
An application was made on September 30, 1992 to JAA for certification of maximum number of passengers of 180.
Paragraph 25.807(c)(1) of JAR specifies for passenger seating configuration, the number and types of Emergency Exits for each side of the fuselage. The maximum seating capacity allowable under JAR 25.807(c)(1) for A320 exit configuration is 179 (2 Type I and 2 Type III).
However, the exits size for front and rear doors on the A320 is such (32x73 inches) that they are oversized Type I and therefore can be considered as a non standard exit arrangement.
The same exit size is being used on a derivative of the A320, for which Latin Square Tests have been conducted in order to establish an appropriate rating for that kind of exits. These tests have shown that, when associated with the performance of the slide installed at these exits, a rating of 55 passengers is appropriate.
It should also be noted that the full scale emergency evacuation demonstration of the A320 with 179 passengers has demonstrated compliance with JAR 25.803(c) with sufficient margin to justify 180 passengers.
Under those conditions, a maximum capacity of 180 passengers is requested for the A320.
JAA Conclusion: Based upon the demonstrated higher rating for the floor level exits and the adequate margins for 179 passengers shown in the 90 seconds demonstration, and used as a basis to show compliance to JAR 25.803(c), the JAA accept 180 passengers as the maximum capacity for the A320 on the basis of an Equivalent Safety Finding.