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TELEGRAPHIC MESSAGE PRECEDENCE: SECURITY CLASSIFICATION Federal Aviation Administration NORMAL 800 Independence Avenue, SW
Unclassified
ACTION: ROUTINE W a s h i n g t o n , D C 2 0 5 9 1 FILE: ACCOUNTING CLASSIFICATION DATE PREPARED: 3 / 1 6 /202 6 FOR INFORMATION CALL NAME PHONE NUMBER TYPE OF MESSAGE BECKY MCDOWELL ( 202 ) - 2 6 7 - 4196 _ SINGLE _ BOOK _ X _ MULTI ADDRESS MESSAGE TO BE TRANSMITTED (Use double spacing and all capital letters) To: KRWA NOUS2 171450 GENOT RWA 26/13 N JO 7340.904 GG ALRGNS 1/500/530 AMC-1 AMA-500 ACT-1 ALATFO XVM EFFECTIVE: 3/24/2026 CANCELLATION: 3/24/2027 SUBJECT: ICAO THREE LETTER DESIGNATOR (3LD) “WKR” AND ASSOCIATED CALL SIGN “MOWER” THE FOLLOWING ADDITION TO JO 7340.2, CONTRACTIONS, CHAPTER 3, SECTIONS 1, 2, AND 3 IS APPROVED FOR “WKR” / “MOWER”: ADD: TELEPHONY: MOWER DESIGNATOR (IDENTIFIER): WKR COMPANY/AGENCY: WALKER MANUFACTURING COMPANY COUNTRY: UNITED STATES P A G E NO. NO. OF PGS Security Classification
Unclassified
PLEASE DIRECT ANY QUESTIONS TO BECKY MCDOWELL AT 202-267-4196 OR BECKY.MCDOWELL@FAA.GOV.
Digitally signed by
BRIAN M
BRIAN M MURPHY Date: 2026.03.17
MURPHY
07:55:14 -04'00' BRIAN MURPHY MANAGER, AJV-A31 AERONAUTICAL DATA TEAM P A G E NO. NO. OF PGS Security Classification
Unclassified
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