. 14 4/ : S-76A/WC i• i.J..eyeare re*. Kier- Insiaaalioa et ReplaeAmeni LED External Lights installed on a Sikorsky S-76A431C in accordance with Keystone Helicopter Insialtation Drawing List IDL01696 Rev K. dated 01/15/2010 or later FAA approved revision. 1.7..[J..rseraer geeease...: *I. Keystone Helios*: Instructions for Continued Ai