A pilot of an small aircraft helicopter inadvertently flew into a class D control zone while navigating by pilotage alone. The helicopter was equipped with LORAN. Unauthorized penetration of airspace.

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Attributes
ACN	327240
Time
Date	199602
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : esf
State Reference	LA
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : esf
Operator	common carrier : air taxi
Make Model Name	Helicopter
Operating Under FAR Part	Part 135
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial
Experience	controller military : 20 controller non radar : 25 controller radar : 25 controller supervisory : 25 flight time last 90 days : 30 flight time total : 5000 flight time type : 300
ASRS Report	327240
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : became reoriented flight crew : exited penetrated airspace
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was on a VFR flight plan (with WX of 3000 ft, 5 mi) at 550 ft. Due to a navigation error I inadvertently entered into the controled airspace at esf. I saw another aircraft at about 400 ft higher and 1/4 mi. I took no evasive action as none was needed. I should have used the LORAN to determine distance instead of relying on visual navigation. I did not feel any danger of collision existed but I did enter into the control zone by accident.

Original NASA ASRS Text

Title: A PLT OF AN SMA HELI INADVERTENTLY FLEW INTO A CLASS D CTL ZONE WHILE NAVING BY PILOTAGE ALONE. THE HELI WAS EQUIPPED WITH LORAN. UNAUTH PENETRATION OF AIRSPACE.

Narrative: I WAS ON A VFR FLT PLAN (WITH WX OF 3000 FT, 5 MI) AT 550 FT. DUE TO A NAV ERROR I INADVERTENTLY ENTERED INTO THE CTLED AIRSPACE AT ESF. I SAW ANOTHER ACFT AT ABOUT 400 FT HIGHER AND 1/4 MI. I TOOK NO EVASIVE ACTION AS NONE WAS NEEDED. I SHOULD HAVE USED THE LORAN TO DETERMINE DISTANCE INSTEAD OF RELYING ON VISUAL NAV. I DID NOT FEEL ANY DANGER OF COLLISION EXISTED BUT I DID ENTER INTO THE CTL ZONE BY ACCIDENT.

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.