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Found this in an old box of 'stuff'. Picked it up somewhere in SEA. May have been TSN. I think it may have had something to do with the airdrops at An Loc. I wasn't on any of those missions, so not sure. Can anyone remember how this was used? Sorry about the poor quality of the picture.

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That is a Safety Pin for the Extraction Force Coupling (EFTC) Actuator Arm on a heavy equipment platform.

Pulling that pin while the EFTC Actuator Arm is not secured to the platform usually results in someone getting 175 lbs. of pressure in the chin.

Now adays. that pin is a push-to-release type.

It would appear that back then, the pin was removed prior to completion of the pre-slowdown checklist. Now, it's removed and stowed during the JAI process, before flight.

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