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COLONIAL AIRLINES, INC. Transmittal No.4 May 14, 1948 To: Operations Manual Holders VOLUME ONE From: Vice President, Operations [[three columns]] | TAB | REMOVE | INSERT | | --- | --- | --- | | Enroute | Page 3 | Page 3 Deletes Par.13,Page 3 | | Enroute | None | Pages 10a, 10b Adds Sunrise Tables | | Enroute | Pages 15,16 | Pages 15,16 Altitude Corrections | | Procedure Plates | Baltimore, Md. | Baltimore, Md. New Plate | | Procedure Plates | Baltimore, Md. Approach Proc. | None Deleted | | Procedure Plates | Charleston, S.C. | Charleston, S.C. New Plate | | Procedure Plates | Charleston, S.C. Approach Proc. | None Deleted | | Procedure Plates | Hartford, Conn. | Hartford, Conn. New Plate | | Procedure Plates | Hartford, Conn. Approach Proc. | None Deleted | | Procedure Plates | Martinsburg, W.Va. | Martinsburg, W.Va. New Plate | | Procedure Plates | Martinsburg, W.Va. Approach Proc. | None Deleted | | Procedure Plates | Rochester, N.Y. | Rochester, N.Y. New Plate | | Procedure Plates | Rochester, N.Y. Approach Proc. | None Deleted | Calco stack compass locator frequency 347 Kc identification (V) was decommissioned May 6. Please change your Newark approachplate. On page 11 of TAB ENROUTE, change BDF to BAF for Westfield, Mass. Washington Airport Traffic Control Tower Operations Letter #4, Washington Air Route Traffic Control Center Operations Letter #8, Effective April 30, 1948, Subject: ADF holding procedures Washington, D.C. has been postponed until further notice. Glens Falls radio beacon identification changed from GB to GFL (eff. 4/29/48) ********************************************************************* I HAVE RECEIVED TRANSMITTAL NO. 4, FLIGHT SECTION - VOLUMNE ONE, AND HAVE COMPLIED WITH INSTRUCTIONS. ______________________________ SIGNATURE OF HOLDER RETURN TO OFFICE OF MANUAL EDITOR, LAGUARDIA FIELD, N.Y.