« Back to Advisory Circulars Main Page

25.729-1 - Transport Airplane Landing Gear Retracting Mechanism

Date Issued
December 28, 2011
Responsible Office

This advisory circular (AC) describes an acceptable means for showing compliance with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) 25.729 regarding the landing gear retracting mechanism requirements. It will be incorporated into AC 25-21, “Certification of Transport Airplane Structure” and 25-22, “Certification of Transport Airplane Mechanical Systems” at a later date.