Inadvertent penetration of class C airspace.

Attributes
ACN	322700
Time
Date	199511
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : mli airport : gbg
State Reference	IL
Altitude	msl bound lower : 2000 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : mli
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 40 flight time total : 2450 flight time type : 5
ASRS Report	322700
Person 2
Affiliation	Other
Function	instruction : trainee
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited adverse environment
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was giving my boss dual instruction flight when picking the company airplane up from its annual inspection at gbg. I was very busy in cruise flight watching for traffic, giving dual and navigating with the VOR en route to mut (aircraft home base). I was tracking the 310 degree radial to the mut airport and turned attention to giving dual and watching for traffic. In the mean time, our aircraft came very close to mli's class C airspace (I don't believe we ever entered it). Causing factors were tracking a terminal VOR several mi away (not very accurate) as the means of avoiding mli's airspace. Also, time was about sunset making pilotage difficult. Finally, I am in the habit of radio usage close to class B, C & D airspace, but unfortunately the cabin speaker was unreadable. All these factors led to a near penetration of class C airspace.

Original NASA ASRS Text

Title: INADVERTENT PENETRATION OF CLASS C AIRSPACE.

Narrative: I WAS GIVING MY BOSS DUAL INSTRUCTION FLT WHEN PICKING THE COMPANY AIRPLANE UP FROM ITS ANNUAL INSPECTION AT GBG. I WAS VERY BUSY IN CRUISE FLT WATCHING FOR TFC, GIVING DUAL AND NAVING WITH THE VOR ENRTE TO MUT (ACFT HOME BASE). I WAS TRACKING THE 310 DEG RADIAL TO THE MUT ARPT AND TURNED ATTENTION TO GIVING DUAL AND WATCHING FOR TFC. IN THE MEAN TIME, OUR ACFT CAME VERY CLOSE TO MLI'S CLASS C AIRSPACE (I DON'T BELIEVE WE EVER ENTERED IT). CAUSING FACTORS WERE TRACKING A TERMINAL VOR SEVERAL MI AWAY (NOT VERY ACCURATE) AS THE MEANS OF AVOIDING MLI'S AIRSPACE. ALSO, TIME WAS ABOUT SUNSET MAKING PILOTAGE DIFFICULT. FINALLY, I AM IN THE HABIT OF RADIO USAGE CLOSE TO CLASS B, C & D AIRSPACE, BUT UNFORTUNATELY THE CABIN SPEAKER WAS UNREADABLE. ALL THESE FACTORS LED TO A NEAR PENETRATION OF CLASS C AIRSPACE.

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.