C152 pilot, momentarily distraction, descends into hvn class D airspace without clearance.

Attributes
ACN	428910
Time
Date	199902
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : hvn.vor
State Reference	CT
Altitude	msl single value : 2400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : hvn.tower
Operator	general aviation : personal
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	cruise : level
Route In Use	enroute : direct
Flight Plan	None
Aircraft 2
Flight Phase	cruise : level
Route In Use	enroute : direct
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 13 flight time total : 589 flight time type : 589
ASRS Report	428910
Events
Anomaly	airspace violation : entry non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited penetrated airspace
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was cruising at 2600 ft, 100 ft above the top of the class D airspace checking for traffic and monitoring ATC. Sun glare became a problem. While adjusting the sun shield, I allowed the aircraft to descend, for just a moment, 100 ft into the top of the class D airspace. To avoid this, try to anticipate possible distrs, in this case, the sun glare, and exercise the extra vigilance necessary to avoid mistakes. More altitude above the class D or a circumnav would have prevented the incursion. Also requesting permission from ATC to cross through the airspace is a safe way to go.

Original NASA ASRS Text

Title: C152 PLT, MOMENTARILY DISTR, DSNDS INTO HVN CLASS D AIRSPACE WITHOUT CLRNC.

Narrative: I WAS CRUISING AT 2600 FT, 100 FT ABOVE THE TOP OF THE CLASS D AIRSPACE CHKING FOR TFC AND MONITORING ATC. SUN GLARE BECAME A PROB. WHILE ADJUSTING THE SUN SHIELD, I ALLOWED THE ACFT TO DSND, FOR JUST A MOMENT, 100 FT INTO THE TOP OF THE CLASS D AIRSPACE. TO AVOID THIS, TRY TO ANTICIPATE POSSIBLE DISTRS, IN THIS CASE, THE SUN GLARE, AND EXERCISE THE EXTRA VIGILANCE NECESSARY TO AVOID MISTAKES. MORE ALT ABOVE THE CLASS D OR A CIRCUMNAV WOULD HAVE PREVENTED THE INCURSION. ALSO REQUESTING PERMISSION FROM ATC TO CROSS THROUGH THE AIRSPACE IS A SAFE WAY TO GO.

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.