The most common cause of compressor stalls in early versions of the Pratt & Whitney JT9D engines powering the 747-100/200 was the use of excessive reverse when the airplane had slowed too much for the degree of reverse used. This was exacerbated if it was a high-time engine. Typically a compressor stall in these engines back then was not written up.
COPYRIGHT 2004 The Gale Group Inc. Human intelligence, or HUMINT, is the gathering of information through human contact. It is, along with signals intelligence and imagery intelligence (SIGINT and IMINT respectively), one of the three traditional means of intelligence gathering.
MASINT is technically derived intelligence thatâwhen collected, processed, and analyzed by dedicated MASINT systemsâresults in intelligence that detects and classifies targets, and identifies or describes signatures (distinctive characteristics) of fixed or dynamic target sources.