Title: CM - Time Stamp Addition

PDR Reference: 				97060002
Originator Reference: 			CMTS
SARPs Document Reference: 		CM SARPs, Section 2.1.4.2.1
Status:					WITHDRAWN
PDR Revision Date: 			04/08/97 (SME Rec. ACCEPTED -> WITHDRAWN)
PDR Submission Date: 			27/06/97
Submitting State/Organization:	ATNP WG3/SG2
Submitting Author Name: 		Saccone, G
Submitting Author E-mail Address: 	gsaccone@ccgate.hac.com
Submitting Author Supplemental 
Contact Information:			ph 1 604 821-5182,
					      fx 1 604 279-5980
SARPs Date: 				IV1.1, March 97
SARPs Language: 			      English

Summary of Defect: 

The ICAO Manual states in Part II Chapter 2 Section 2.3.2 that time stamping is required for all CM messages and that the time stamp will consist of the date (YYMMDD) and time (HHMMSS).
The time stamp is missing from the CM SARPs. 

Assigned SME: 				Sub-Volume II SME

Proposed SARPs amendment: 

SME Recommendation to CCB:		WITHDRAWN

ADSP recognised (Brisbane meeting) that the requirement in the manual is ambiguous. There is no requirement mandating to have the timestamp sent along the line with all CM messages. Timestamps generated and stored locally in the a/c and in the ground may be sufficient.
Therefore there is no inconsistency between the ICAO Manual and the SARPs. The author withdraws the PDR.

CCB Decision:				CCB-2 (Langen): SUBMITTED
						atnp_ccb_chair: ACCEPTED (22/09/97)