Narrative:

A south departure that has departed a north satellite airport is issued 15000 ft and xferred to newtt/eon north of ord on the appropriate heading. According to the LOA; C90 must issue that departure normal speed. ZAU is now working the departure; but for some reason has not issued a climb clearance out of C90 airspace. LOA trap: north satellite aircraft that have been xferred to the newtt/eon sector north of ord shall be assigned normal speed regardless of fix. Result: the departure overtakes other departures operating at 15000 ft; resulting in an operational error and/or an impact to the safety of the user. Note: the 7110.65S; paragraph 5-4-6; states that if the receiving controller must delay the climb; the xferring controller must be advised. What constitutes a delay? Is it 5; 10; 50 mi? Solution: until the ZAU/C90 LOA can be properly written to protect both the user and C90 controller; the ZAU/C90 LOA must be suspended and/or revised immediately.

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Original NASA ASRS Text

Title: C90 CTLR EXPRESSED CONCERN REGARDING LOA PROCS WITH ZAU AS IT RELATES TO ZAU ACTIONS AFTER HDOF BUT WHILE STILL WITHIN C90 AIRSPACE.

Narrative: A S DEP THAT HAS DEPARTED A N SATELLITE ARPT IS ISSUED 15000 FT AND XFERRED TO NEWTT/EON N OF ORD ON THE APPROPRIATE HDG. ACCORDING TO THE LOA; C90 MUST ISSUE THAT DEP NORMAL SPD. ZAU IS NOW WORKING THE DEP; BUT FOR SOME REASON HAS NOT ISSUED A CLB CLRNC OUT OF C90 AIRSPACE. LOA TRAP: N SATELLITE ACFT THAT HAVE BEEN XFERRED TO THE NEWTT/EON SECTOR N OF ORD SHALL BE ASSIGNED NORMAL SPD REGARDLESS OF FIX. RESULT: THE DEP OVERTAKES OTHER DEPS OPERATING AT 15000 FT; RESULTING IN AN OPERROR AND/OR AN IMPACT TO THE SAFETY OF THE USER. NOTE: THE 7110.65S; PARAGRAPH 5-4-6; STATES THAT IF THE RECEIVING CTLR MUST DELAY THE CLB; THE XFERRING CTLR MUST BE ADVISED. WHAT CONSTITUTES A DELAY? IS IT 5; 10; 50 MI? SOLUTION: UNTIL THE ZAU/C90 LOA CAN BE PROPERLY WRITTEN TO PROTECT BOTH THE USER AND C90 CTLR; THE ZAU/C90 LOA MUST BE SUSPENDED AND/OR REVISED IMMEDIATELY.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.