AAD Maintenance Information

Modern AADs are computerized devices with a pyrotechnic loop cutter. While the cutter cannot be reasonably tested (without firing it), 2 of the 3 major brands impose a requirement to periodically do a functional test on the processing and control units. Batteries don't last forever and need replaced on a manufacturer specified schedule. Thus, skydivers and riggers need to meet these requirements to stay “legal”.

Riggers are caught in a legal conundrum. When an Inspection and Repack (I&R) is performed, some AAD maintenance may come due within the time period before the next I&R is required. While a few riggers may complete the I&R with a notation on the data card, most will simply require that any AAD maintenance is done, if it is required before the next required inspection. This is consistent with common practice of riggers and the common understanding that an I&R should last 180 days (longer in some countries).

The various requirements from the different manufacturers create a lot of confusion. This page attempts to spell out the details in plain English, so the average person can understand it. Plug in the information about your AAD and it will tell you the required maintenance dates.

A few older AADs may still remain in service, including the FXC Astra, FXC Model 12000, the Sentinel MK 2000, or even the CAP 3. While they may still work well in limited applications, this page does not attempt to comment on AADs that are simply not up to modern standards.