Assess if maintenance has any impact on overall reliability. Study and analyze the relationships between reliability and scheduled maintenance. Solution The Effects of Maintenance on Reliability By Bill Brinkley AP / IA Manager of Reliability and Development USAirways Express / Piedmont Airlines Publisher\'s Note: I will caution you that a) Bill Brinkley comes from the commercial Aviation industry where reliability is not optional and b) he pulls no punches when speaking to industrial maintenance professionals. I an interested in hearing what you can take away from this paper that was presented at IMC-2007. You can email me your comments or you canpost them here. In an airline environment, maintenance is king. An aircraft receives about 17 man-hours of maintenance for every flight hour. That may seem excessive - unless you are the one riding in that aircraft. So.