[ARC5] An interesting marking on ARA set sn 4839

[Craig]

GFE/GFAE is equipment purchased by government contract and then 
delivered either directly to the government or to another contractor for 
installation into an end item. The PV1/PV2 stamps were most likely to 
help segregate same p/n GFE when delivered to Lockheed, as they were 
working multiple lines and contracts within the same facility at the 
time. Record keeping and GFE/GFAE segregation gets complicated when you 
build end items that are essentially identical, but for different 
contracting agencies and are not working under a single procurement 
organization. We currently build similar aircraft for multiple 
governments, but thru a single procurement organization, with them 
having total responsibility for all acceptance and DD-250 approval.

Craig