Airworthiness Directive · Amendment 39-12547 · Boeing Model 747-200C and -200F Series Airplanes
Boeing Model 747-200C and -200F Series Airplanes
Model 747-200C and "200F series airplanes, as listed in Boeing Alert Service Bulletin 747-38A2073, Revision 2, dated April 26, 2001; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747-200C and -200F series airplanes, that requires installation of drip shields over certain shelves in the main equipment bay. This action is necessary to prevent water from dripping through floor panels of the main deck cargo bay onto wire bundles and electronic components, which could lead to the loss of function of multiple electronic components and, consequently, could reduce the flight crew's ability to operate in adverse conditions. This action is intended to address the identified unsafe condition.
