Home : Articles

Aviation: Take Control of CORROSION

| July 7, 2020


Aircraft multipin electrical connectors are the electrical interface between the aircraft and avionics systems. 

The failure of just one electrical connector could lead to a minor system failure at best, or a catastrophic failure at worst. Corrosion to electrical connectors is a serious concern and is an issue that is regularly overlooked. The difference between avionic and airframe corrosion is that relatively small amounts of corrosion in avionic equipment can cause intermittent malfunction or, worse, complete failure. 

While it’s not a common practice among Soldiers, using an avionics grade MIL-PRF-81309, Type III corrosion preventive compound (CPC), assists in displacing any moisture present and prevents corrosion inside connectors. Using the incorrect CPCs degrades system performance and can cause failures. So use the right CPC. 

When electronic system problems arise, reseating cannon plugs is a temporary fix. Refer to your aircraft’s IETM or Chap 6 of TM 1-1500-344-23-2. Only use MIL-PRF-81309, Type III, Avionics Grade inside connectors. NSN 8030-00- 546-8637 brings a 12-oz aerosol can.

For further corrosion assistance, contact the AMCOM Corrosion Program Office Hotline at (256) 313-0209. You can also visit the website:
Using correct CPC on avionics is beneficial if done correctly.
Using correct CPC on avionics
is beneficial, if done correctly.

The search bar below allows you to search all articles that appear in the "article stream" in the center column. The search bar in the blue banner at the top of the pagepowered by Bingsearches the entire website.

Click here to subscribe to PS Magazine Newsletters & Updates