Apparatus, system, and method for diagnosing initiators in airbag systems

1. A method for diagnosing a plurality of aircraft airbag initiators in an aircraft airbag system, the method comprising:

providing a diagnostic circuit per aircraft seat, each diagnostic circuit electrically connected between an aircraft crash sensing means and one of the plurality of aircraft airbag initiators, the diagnostic circuit being in a normally off condition and enabled by a user activation;

providing a power supply, independent of aircraft power, electrically connected to each diagnostic circuit;

providing a momentary switch;

providing a visual indicator providing feedback to the user of a health of each of the plurality of aircraft airbag initiators, the visual indicator configured to be operative once the user has activated the diagnostic circuit;

receiving a signal indicating user activation of the momentary switch; and

responsive to receiving the signal:

completing a circuit for the diagnostic circuit to function, indicating to the user that the diagnostic circuit is functioning;

regulating a current into the diagnostic circuit to prevent an aircraft airbag initiator from firing during diagnostic evaluation;

boosting the signal to a window comparator;

detecting a voltage by the window comparator; and

providing feedback to the user about the voltage.

2. The method of claim 1 further comprising using an FET switch to prevent back-flow of electrical current.

3. The method of claim 1 further comprising using diodes to prevent back-flow of electrical current.

4. The method of claim 1 wherein providing the momentary switch comprises providing a pushbutton.