JS1246: Quiet 707 FAA Approved Flight Manual Supplement 707-300C Series and 707-300B (Advanced) Series Operating with Intermixed P & W JT3D-3B and JT3D-3C Engines, 1986-04-22 - 1986-05-01, Box: 11 , Folder: 14. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/766774 Accessed June 14, 2026.