Fly-it-and watch-it attitude resulted in fractured link of silent chain, loss of antltorque control and crash.
Ted Kontos, U. S. Army Agency for Aviation Safety (USAAAVS) Publications and Graphics Division
1976-11
<a rel="nofollow" class="external text" href="http://www.rucker.army.mil/avjournal/1970/1976/AVN_DIG_1976_11.pdf">Spotlight On Maintenance</a> (United States Army Aviation Digest, November 1976, Vol. 22, No 1,) page 5.