C E R T A L E R T 

ADVISORY       CAUTIONARY      NON-DIRECTIVE

FOR INFORMATION, CONTACT Edward Dorsett, AAS-300 (202) 267.8792

DATE: 	May 26, 2004	No. 04-04	
TO: 	Airport Operators, FAA Airport Certification Safety Inspectors, FAA Program Managers	
TOPIC: 	Runway Threshold Markings.	

Advisory Circular 150/5340-1H, Standards for Airport Markings, describes the purpose, location, color and characteristics of Runway Threshold Markings in Section 2, paragraph 9.  (Excerpt from AC 150/5340-1H, Figure 1 shown)

The purpose of this CERTALERT is to remind Airport Operators, Airport Certification Safety Inspectors, and Program Managers that paragraph 9(d) states the threshold markings may have either the characteristics in (1) Configuration A or (2) Configuration B, but after January 1, 2008, only those characteristics in (2) Configuration B will be acceptable.  While this date is still several years away, part 139 airport operators should start taking the necessary steps to make the conversions, especially on runways that are new, being reconstructed, or having an overlay.

____________OSB___________________                              5/26/2004
Benedict D. Castellano, Manager
Airport Safety and Operations, AAS-300