Attempt to direct in IMC conditions resulting in less than standard separation.

Attributes
ACN	190648
Time
Date	199110
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mke
State Reference	WI
Altitude	msl bound lower : 10000 msl bound upper : 25000
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zau
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 10000 flight time type : 4000
ASRS Report	190648
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 75 flight time total : 2000 flight time type : 600
ASRS Report	190998
Events
Anomaly	inflight encounter : weather non adherence : clearance non adherence : required legal separation other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight path as cleared led through thunderstorm line over approximately middle of lake. Ord was holding aircraft toward south end leaving a north diversion only route. Ord center started sending aircraft north. Flight entered ice crystals causing radio static. After some vectoring ending with 270 degree, ord asked if we could go direct mke. Since he was so busy we decided to try and deadreckon to mke using bae, hrk and 25L localizer at mke, and not argue that mke was not a legal fix for us to navigation to. In the 20 seconds it took us to receive hrk and 25L localizer were OTS, and that bae was bearing approximately 240 (35 DME, ie, we were north of mke by approximately 40 mi). He asked us if we were going direct, then he said something like 'you gave me bad information, climb immediately to 11000 you have traffic at 10 O'clock.' rest of flight was relatively uneventful except for the turbulence lighting and radio static continuing. Conclusion. No more mr. Nice guy.

Original NASA ASRS Text

Title: ATTEMPT TO DIRECT IN IMC CONDITIONS RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: FLT PATH AS CLRED LED THROUGH TSTM LINE OVER APPROX MIDDLE OF LAKE. ORD WAS HOLDING ACFT TOWARD S END LEAVING A N DIVERSION ONLY RTE. ORD CENTER STARTED SENDING ACFT N. FLT ENTERED ICE CRYSTALS CAUSING RADIO STATIC. AFTER SOME VECTORING ENDING WITH 270 DEG, ORD ASKED IF WE COULD GO DIRECT MKE. SINCE HE WAS SO BUSY WE DECIDED TO TRY AND DEADRECKON TO MKE USING BAE, HRK AND 25L LOC AT MKE, AND NOT ARGUE THAT MKE WAS NOT A LEGAL FIX FOR US TO NAV TO. IN THE 20 SECONDS IT TOOK US TO RECEIVE HRK AND 25L LOC WERE OTS, AND THAT BAE WAS BEARING APPROX 240 (35 DME, IE, WE WERE N OF MKE BY APPROX 40 MI). HE ASKED US IF WE WERE GOING DIRECT, THEN HE SAID SOMETHING LIKE 'YOU GAVE ME BAD INFO, CLB IMMEDIATELY TO 11000 YOU HAVE TFC AT 10 O'CLOCK.' REST OF FLT WAS RELATIVELY UNEVENTFUL EXCEPT FOR THE TURB LIGHTING AND RADIO STATIC CONTINUING. CONCLUSION. NO MORE MR. NICE GUY.

Data retrieved from NASA's ASRS site as of July 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.