JS1386: Certification Proposal for the use of the Boeing Spare Engine Pod on the Quiet 707-300B (ADV)/C Airplane, 1989-02-17, Box: 15, Folder: 25. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/766917 Accessed June 15, 2026.