1. 1Excerpts and photos from the NTSB report can be viewed at http://www.aloha.net/∼icarus/
2. 2“FAA Orders Inspections”, Aviation Week & Space Technology, 3 November, 1997, p. 41.
3. 3Bahr, B., “Automated inspection for aging aircraft”, International Workshop on Inspection and Evaluation of Aging Aircraft, May 18‐21, 1992, Albuquerque, NM, sponsored by the Federal Aviation Administration, hosted by Sandia National Laboratories.
4. 4Backes, P.G., Jet Propulsion Laboratory (JPL), California Institute of Technology, Pasadena, CA 91109. Personal communication. See http:// robotics.jpl.nasa.gov/tasks/macs/homepage.html.
5. 5Backes, P.G., Bar‐Cohen, Y. and Joffe, B., “The multifunction automated crawling system (MACS)”, Proceedings of the 1997 IEEE International Conference on Robotics and Automation, Albuquerque, NM, April, 1977, pp. 335‐40.