Erroneous penetration of ord TCA by air carrier medium large transport on SID departure.

Attributes
ACN	114142
Time
Date	198906
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mdw
State Reference	IL
Altitude	msl bound lower : 1300 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord tower : sfo
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : initial climbout : intermediate altitude
Route In Use	departure sid : sid enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 12000 flight time type : 4000
ASRS Report	114142
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 6000 flight time type : 600
ASRS Report	114317
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance none taken : anomaly accepted other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other
Situations
Airport	procedure or policy : unspecified

Narrative:

During departure from runway 31L at mdw, SID calls for completing initial turn within 4 DME of airport. The clearance for the SID also stipulates that no turns be made until reaching 1300'. The first officer, who was flying, started his turn at 1300' to a heading of 090 degree assigned with a maximum allowed bank angle of 30 degree. After being cleared to climb to 4000' from 3000' departure control said to turn to 120 degree immediately as we were encroaching on ord 27L airspace. Departure queried us as to our familiarity with the mdw #4 SID and stated that in the future to be sure to complete our initial departure turn within 4 imdw DME. The winds at the time were reported as 23 V 30. I believe the combination of no turns prior to 1300', maximum bank allowable of 30 degree and the wind all contributed to the situation of possibly approaching the ord airspace limit. It is my opinion, that since the easterly turn from runway 31L turns an aircraft towards the conflicting ord airspace, a turn to the west departing 31L at mdw would totally eliminate the conflict with ord 27L, as it takes an aircraft away from ord 27L airspace.

Original NASA ASRS Text

Title: ERRONEOUS PENETRATION OF ORD TCA BY ACR MLG ON SID DEP.

Narrative: DURING DEP FROM RWY 31L AT MDW, SID CALLS FOR COMPLETING INITIAL TURN WITHIN 4 DME OF ARPT. THE CLRNC FOR THE SID ALSO STIPULATES THAT NO TURNS BE MADE UNTIL REACHING 1300'. THE F/O, WHO WAS FLYING, STARTED HIS TURN AT 1300' TO A HDG OF 090 DEG ASSIGNED WITH A MAX ALLOWED BANK ANGLE OF 30 DEG. AFTER BEING CLRED TO CLIMB TO 4000' FROM 3000' DEP CTL SAID TO TURN TO 120 DEG IMMEDIATELY AS WE WERE ENCROACHING ON ORD 27L AIRSPACE. DEP QUERIED US AS TO OUR FAMILIARITY WITH THE MDW #4 SID AND STATED THAT IN THE FUTURE TO BE SURE TO COMPLETE OUR INITIAL DEP TURN WITHIN 4 IMDW DME. THE WINDS AT THE TIME WERE REPORTED AS 23 V 30. I BELIEVE THE COMBINATION OF NO TURNS PRIOR TO 1300', MAX BANK ALLOWABLE OF 30 DEG AND THE WIND ALL CONTRIBUTED TO THE SITUATION OF POSSIBLY APCHING THE ORD AIRSPACE LIMIT. IT IS MY OPINION, THAT SINCE THE EASTERLY TURN FROM RWY 31L TURNS AN ACFT TOWARDS THE CONFLICTING ORD AIRSPACE, A TURN TO THE WEST DEPARTING 31L AT MDW WOULD TOTALLY ELIMINATE THE CONFLICT WITH ORD 27L, AS IT TAKES AN ACFT AWAY FROM ORD 27L AIRSPACE.

Data retrieved from NASA's ASRS site as of August 2007 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.