Ebug
Aerospace
- Sep 27, 2007
- 8
Hello gentlemen. I need some help.
I recently change employers and have come to realize that the way my previous employer taught me to interpret BAC finish codes might not have been correct.
Both employers are DoD contractors and this question applies to DoD work only. Aicraft owned by the DoD and not new manufacture for Boeing.
If you take a look at any BAC finish code...say F3.20 for example. It says...
Anodize in accordance with MIL-M-45202, Type II, Class A, Grade 1 or Class D or chemical treat in accordance with MIL-M-3171, Type III. (Boeing application use: MIL-M-45202, Type II, Class A, Grade 1 or Class D or BAC5734 for anodize, MIL-M3171, Type III or BAC5609 for chemical treatment.)
In this example, the section "Boeing application use:" section is very similar to the previous information; but on others it is very different.
I was taught that only parts that were for new Boeing Manufacture used the section labled "Boeing application use:"
My question to you is...what is the correct way to interpret these codes?
I thank you for any light you can shed on this topic.
Rob
I recently change employers and have come to realize that the way my previous employer taught me to interpret BAC finish codes might not have been correct.
Both employers are DoD contractors and this question applies to DoD work only. Aicraft owned by the DoD and not new manufacture for Boeing.
If you take a look at any BAC finish code...say F3.20 for example. It says...
Anodize in accordance with MIL-M-45202, Type II, Class A, Grade 1 or Class D or chemical treat in accordance with MIL-M-3171, Type III. (Boeing application use: MIL-M-45202, Type II, Class A, Grade 1 or Class D or BAC5734 for anodize, MIL-M3171, Type III or BAC5609 for chemical treatment.)
In this example, the section "Boeing application use:" section is very similar to the previous information; but on others it is very different.
I was taught that only parts that were for new Boeing Manufacture used the section labled "Boeing application use:"
My question to you is...what is the correct way to interpret these codes?
I thank you for any light you can shed on this topic.
Rob
