JS1407: FAA Approved Airplane Flight Manual Supplement for a Beech C-90 King Air with Dual Bendix M-4D Autopilot and Collins FD-112C Flight Director System, 1990-06-06, Box: 16, Folder: 6. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/766938 Accessed June 15, 2026.