While returning to mkc on a pleasure flight, a pilot inadvertently entered mci class B airspace. The pilot had planned to avoid the airspace using GPS, but the battery power to the GPS failed. When the pilot contacted the mkc tower, he was told to contact the mci TRACON for vectors out of class B airspace.

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Attributes
ACN	346620
Time
Date	199608
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : mci airport : mkc
State Reference	MO
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mci
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 28000 flight time type : 100
ASRS Report	346620
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : less severe non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During return to mkc from stj I commenced a track intended to take me east of mci controled airspace using a GPS 90. Approximately 8 mins after takeoff from stj battery power to GPS suddenly failed without warning. As a result of this failure I may have unknowingly penetrated the mci controled airspace. Shortly after loss of GPS battery power I contacted mkc tower and was requested to contact mci TRACON for vectors.

Original NASA ASRS Text

Title: WHILE RETURNING TO MKC ON A PLEASURE FLT, A PLT INADVERTENTLY ENTERED MCI CLASS B AIRSPACE. THE PLT HAD PLANNED TO AVOID THE AIRSPACE USING GPS, BUT THE BATTERY PWR TO THE GPS FAILED. WHEN THE PLT CONTACTED THE MKC TWR, HE WAS TOLD TO CONTACT THE MCI TRACON FOR VECTORS OUT OF CLASS B AIRSPACE.

Narrative: DURING RETURN TO MKC FROM STJ I COMMENCED A TRACK INTENDED TO TAKE ME E OF MCI CTLED AIRSPACE USING A GPS 90. APPROX 8 MINS AFTER TKOF FROM STJ BATTERY PWR TO GPS SUDDENLY FAILED WITHOUT WARNING. AS A RESULT OF THIS FAILURE I MAY HAVE UNKNOWINGLY PENETRATED THE MCI CTLED AIRSPACE. SHORTLY AFTER LOSS OF GPS BATTERY PWR I CONTACTED MKC TWR AND WAS REQUESTED TO CONTACT MCI TRACON FOR VECTORS.

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.