Citing the potential effect on the relationship between maintenance, repair and overhaul providers and their customers, as well as the proposal’s overall scope, nine associations have asked the FAA for 90 more days to comment on the agency’s proposed repair station rule changes. The trade groups say members have noted major concerns with the new rule, which would radically revamp FAR Part 145. “Among those concerns is the impact the proposal would have on customer and repair station interfaces (particularly repair stations with airline clientele), making coordination among and between the undersigned associations invaluable to this rulemaking process,” the groups say in their joint letter, submitted Aug. 3. The groups also note that “a great many” repair stations are small businesses without dedicated staffers assigned to analyzing regulatory changes. The letter’s signatories were the Aeronautical Repair Station Association, Aerospace Industries Association, Aircraft Electronics Association, Aircraft Owners and Pilots Association, Airlines for America, Helicopter Association International, National Air Carrier Association, National Air Transportation Association, and Regional Airline Association. FAA issued its proposed Part 145 rewrite on May 21. The original comment period’s closing date is Aug. 20.