Narrative:

Pwk is a reliever airport located approximately 9 mi north of ord. Depending on the confign ord utilizes; pwk can experience lengthy delays obtaining IFR release from C90 (TRACON). The SID we use for IFR departures is the pwk 2. For aircraft departing runway 16; the SID has 3 components. The pwk 2 SID requires aircraft departing runway 16 to execute a right turn within 1 NM of the departure end of the runway (to remain clear of the 345 degree radial of ord NAVAID; thereby remaining clear of ord runway 14L traffic. Next climb and maintain 3000 ft (to remain below ord departures); and to expect radar vectors to the first fix. If time is taken to study the pwk 2 it is not difficult. To the uninitiated; it has caused problems. Couple this with an effort to expedite departures; and to remain clear of IFR inbounds to runway 16; leads to the problem. C90 releases were initially amended; without proper coordination. There exists the possibility for conflict for departures issued a right turn via the pwk 2 heading north and east (a majority). In an effort to avoid the conflict and to remain well clear; the release of 2 aircraft were amended to 'overfly the airport; fly heading 090 degrees east of the airport; then fly the assigned heading 360-040.' one of the aircraft after the frequency change to departure was unclr on the instructions and remained eastbound toward ord runway 22R inbounds. C90 resolved the situation with a turn northbound. No evasive actions were required; no airspace violated; however; the potential for conflict did exist. Lost communication was a major concern. Corrective action: adhere to procedures and the LOA.

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Original NASA ASRS Text

Title: PWK CTLR VOICED CONCERN REGARDING C90'S INITIATED NON STANDARD PWK DEP PROCS; ALLEGING POTENTIAL SAFETY CONCERNS.

Narrative: PWK IS A RELIEVER ARPT LOCATED APPROX 9 MI N OF ORD. DEPENDING ON THE CONFIGN ORD UTILIZES; PWK CAN EXPERIENCE LENGTHY DELAYS OBTAINING IFR RELEASE FROM C90 (TRACON). THE SID WE USE FOR IFR DEPS IS THE PWK 2. FOR ACFT DEPARTING RWY 16; THE SID HAS 3 COMPONENTS. THE PWK 2 SID REQUIRES ACFT DEPARTING RWY 16 TO EXECUTE A R TURN WITHIN 1 NM OF THE DEP END OF THE RWY (TO REMAIN CLR OF THE 345 DEG RADIAL OF ORD NAVAID; THEREBY REMAINING CLR OF ORD RWY 14L TFC. NEXT CLB AND MAINTAIN 3000 FT (TO REMAIN BELOW ORD DEPS); AND TO EXPECT RADAR VECTORS TO THE FIRST FIX. IF TIME IS TAKEN TO STUDY THE PWK 2 IT IS NOT DIFFICULT. TO THE UNINITIATED; IT HAS CAUSED PROBS. COUPLE THIS WITH AN EFFORT TO EXPEDITE DEPS; AND TO REMAIN CLR OF IFR INBOUNDS TO RWY 16; LEADS TO THE PROB. C90 RELEASES WERE INITIALLY AMENDED; WITHOUT PROPER COORD. THERE EXISTS THE POSSIBILITY FOR CONFLICT FOR DEPS ISSUED A R TURN VIA THE PWK 2 HDG N AND E (A MAJORITY). IN AN EFFORT TO AVOID THE CONFLICT AND TO REMAIN WELL CLR; THE RELEASE OF 2 ACFT WERE AMENDED TO 'OVERFLY THE ARPT; FLY HDG 090 DEGS E OF THE ARPT; THEN FLY THE ASSIGNED HDG 360-040.' ONE OF THE ACFT AFTER THE FREQ CHANGE TO DEP WAS UNCLR ON THE INSTRUCTIONS AND REMAINED EBOUND TOWARD ORD RWY 22R INBOUNDS. C90 RESOLVED THE SITUATION WITH A TURN NBOUND. NO EVASIVE ACTIONS WERE REQUIRED; NO AIRSPACE VIOLATED; HOWEVER; THE POTENTIAL FOR CONFLICT DID EXIST. LOST COM WAS A MAJOR CONCERN. CORRECTIVE ACTION: ADHERE TO PROCS AND THE LOA.

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.