Interpretation ID: aiam3005
BFGoodrich Company
Dept. 7089
Bldg. 24C
500 South Main Street
Akron
OH 44318;
Dear Mr. Haines: This responds to a January 15, 1979, request from Mr. A. J. Burt t permit adjustment of foundation brakes during the burnish procedures in S6.1.8 and S6.2.6 of Standard No. 121, *Air Brake Systems*, for any reason. At present, such adjustments can only be made to control brake temperature, as stated in our January 24, 1979, letter to Mr. Burt.; The National Highway Traffic Safety Administration is unaware of reason other than control of brake temperature which would justify adjustments during burnish. Accordingly, we decline to grant your request. The NHTSA would, of course, be willing to consider any data or other information you have which would indicate that the present interpretation of burnish procedures may be too narrow in this respect.; Sincerely, Frank Berndt, Chief Counsel