conducted 1st set of deck landing trials with USMC KC-130F 798 off Jacksonville, FL
conducted 2nd set of deck landing trials with USMC KC-130F 798, 90nm E of Boston. Findings led to C-2 Greyhound COD programme.
Yankee Station Departed Norfolk VA with her air wing (including a detachment from HS-2) on 6 Jun 1967, for Gulf of Tonkin off Vietnam, arrived 25 Jul. On 29 Jul a weapons release accident caused a huge fire on deck amongst an armed and fuelled strike force. 135 lost their lives bringing the blaze under control. Steamed to Subic Bay for temporary repairs and returned to Norfolk on 15 Sep.
Partition of Cyprus detached from US 6th Fleet in Mediterannean and ordered off Cyprus to support and if neccesary evacuate US Nationals in aftermath of Turkish invasion of the island. Operated with support of USS Inchon, HS-3 embarked.
Mayport designation changed to CV-59 and moved to Mayport Naval Station, FL