ng: have an aircraft type rating, have a flight instructor's. — log book-endorse:lent. of"possesi a "Letter of Authorizatton"-lssued by an -FAA • . General Aviation'or Air Carrier Operations Itspector. 'A. This aircraft shall not be flown Unless it is maintained and operated in accordance with"BOeing Low Utilization Program, I/A/W FAR 91.169(f)(4