C172 instructor penetrated grr class C airspace without clearance.

Attributes
ACN	426980
Time
Date	199901
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : btl airport : grr
State Reference	MI
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi
Experience	flight time last 90 days : 9 flight time total : 4150 flight time type : 38
ASRS Report	426980
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Events
Anomaly	non adherence : far other anomaly other other anomaly other
Independent Detector	other flight crewa
Consequence	Other
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

While training in the area of hastings, mi, I feel that I may have come close to entering grand rapids, mi (kent county) airspace, without clearance. We had no warning on GPS. But after figuring out our position, I realized how close we had gotten. The wind must have blown us further north than I expected. When I realized where we were, we took up a heading south, to clear the airspace.

Original NASA ASRS Text

Title: C172 INSTRUCTOR PENETRATED GRR CLASS C AIRSPACE WITHOUT CLRNC.

Narrative: WHILE TRAINING IN THE AREA OF HASTINGS, MI, I FEEL THAT I MAY HAVE COME CLOSE TO ENTERING GRAND RAPIDS, MI (KENT COUNTY) AIRSPACE, WITHOUT CLRNC. WE HAD NO WARNING ON GPS. BUT AFTER FIGURING OUT OUR POS, I REALIZED HOW CLOSE WE HAD GOTTEN. THE WIND MUST HAVE BLOWN US FURTHER N THAN I EXPECTED. WHEN I REALIZED WHERE WE WERE, WE TOOK UP A HDG S, TO CLR THE 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.