Crash Position Indicator
... that shortly after it was introduced, the Crash Position Indicator was credited with saving the life of a critically injured airman?
... that shortly after it was introduced, the <b id="mwEeY"><a class="mw-redirect" href="./Crash_Position_Indicator" id="mwEec" rel="mw:WikiLink" title="Crash Position Indicator">Crash Position Indicator</a></b> was credited with saving the life of a critically injured airman?