Dear Mr. Hudson,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located a series titled After Action Reports, 1965 - 1972 in the Records of the U.S. Forces in Southeast Asia (Record Group 472) that includes 63 file units for the 1st Cavalry Division; and 1 file unit for Air Assaults/Assault Helicopter Companies. We also located a series titled Aviation Unit Records, ca. 1965 - ca. 1973 in Record Group 472 that includes an organizational history for 1965-1973, daily journals for April 1958 to March 1971, and command reports for 1968 of the 277th Aviation Battalion/277th AHB (Boxes 491-502). For access and/or copies, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org.
Morning reports for Army units dated 1960-1974 are in the custody of NARA's National Personnel Records Center in St. Louis. Please complete a GSA Standard Form 180 and mail it to NARA's National Personnel Records Center, (Military Personnel Records), 1 Archives Drive, St. Louis, MO 63138-1002.
In addition, we located a website for the 227th AHB, 1st Cavalry Division that may be useful.
We hope this is helpful. Best of luck with your research!