This quote is also from my addendum (supplement) to my first report: Please make PSD engineering add this essential BAC spec to all PSD drawings that install duct hose, all TAI (Thermal Anti-Ice) boot installation drawings in the struts, and all pneumatic duct boot installation drawings in the struts. Also make BCAG issue the necessary Service Bulletins to inspect all of the installations that required this spec to be added, to ensure that these critical parts to cooling of engine accessories, in the case of the duct hoses, and fire protection of the struts and engines, in the case of the boots, are installed in the correct position on the ducts to ensure retention in service, have their band clamps positioned correctly to ensure they won’t slip off and loosen and/or perform no function in service, and have the band clamps torqued to the correct value (as who knows where the mechanics at PSD got the torque from to install them), per the spec. I think I’m pretty much the only inspector that inspects to this spec, so you can be sure that any installations that I didn’t buy off were not inspected per the (process specification I.D.) specification requirements, and need a Service Bulletin. I remember the sad state these accessory cooling duct hoses were installed in when I first started inspecting on the 747/767 EBU (Engine Build Up) line. Some band clamps were installed on top of the bead, some were loose, some were not even picking up the metal duct underneath the duct hose at all, if I remember correctly. (Yet more evidence that points to why I later called myself "The Last Inspector" when starting my web site.) Comments are closed.
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Author:The Last Inspector Archives
April 2018
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