Dear Ms. Jenkins,
Thank you for posting your request on the History Hub!
We searched the National Archives Catalog and located the series World War II Command Files, 1971-2004 in the Records of the Office of the Chief of Naval Operations (Record Group 38) that include two file units on Carrier Aircraft Service Units in the Pacific Theater, one specifically citing the CASU 34. For access to these file units, please contact the National Archives at College Park- Textual Reference (RDT2) via email at firstname.lastname@example.org.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT2. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your research.