14 C.F.R. § 29.815 Main aisle width.
Title 14 - Aeronautics and Space
The main passenger aisle width between seats must equal or exceed the values in the following table: [Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29–12, 41 FR 55472, Dec. 20, 1976]
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart D—Design and Construction
Personnel and Cargo Accommodations
§ 29.815 Main aisle width.
------------------------------------------------------------------------ Minimum main passenger aisle width ------------------------- Passenger seating capacity Less than 25 Inches 25 inches and more from floor from floor (inches) (inches)------------------------------------------------------------------------10 or less.................................... 12 1511 through 19................................. 12 2020 or more.................................... 15 20------------------------------------------------------------------------\1\ A narrower width not less than 9 inches may be approved when substantiated by tests found necessary by the Administrator.
