See Page 9 of TCDS A.064 ANNEX - Airbus A318, A319, A320, A321 - Special Conditions
TCDS A.064 ANNEX - Airbus A318, A319, A320, A321 - Special Conditions
EQUIVALENT SAFETY FINDING E-2107: Passenger Extension to 180
REQUIREMENTS: JAR 25.807
ADVISORY MATERIAL: N/A
Statement 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.
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.