TY - BOOK CN - TD 4.210: CY - Washington, D.C. : CY - [Springfield, Va. : DA - 1993- ID - 238663 KW - Aviation mechanics (Persons) KW - Aeronautics N1 - Shipping list no.: 94-0371-M (v. 1), 98-0439-M (v. 2). PB - Office of Aviation Medicine, Federal Aviation Administration ; PB - National Technical Information Service, distributor, PP - Washington, D.C. : PP - [Springfield, Va. : PY - 1993- T1 - Human factors in aviation maintenancephase three, progress report / TI - Human factors in aviation maintenancephase three, progress report / ER -