Variances to the provisions of this Part may be granted by the Zoning Hearing Board. In addition to the requirements as established by this chapter and the Pennsylvania Municipalities Planning Code, 53 P.S. § 10101 et seq., the following shall also be considered and required:
A. The application shall be submitted to the Federal Aviation Administration and the Pennsylvania Bureau of Aviation for review. The application shall not be approved if either entity provides a written statement that the proposal would interfere with the operation of air navigation facilities and/or the safe efficient use of navigable air space.
B. Comments of the Airport Manager. A copy of the application shall be furnished to the Airport Manager for advice as to the aeronautical effects of the proposal. The Board is only required to consider comments received prior to the Board's last hearing on the matter. An unfavorable report by the Airport Manager or failure to respond shall not bind the Board, but may be a factor in its decision.