Private pilot of C172 re-enters dc ADIZ without clearance or discrete code after exiting from same.

Attributes
ACN	592840
Time
Date	200309
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : hef.airport
State Reference	VA
Altitude	msl single value : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pct.tracon tower : hef.tower
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : student
Experience	flight time last 90 days : 6.3 flight time total : 100 flight time type : 70
ASRS Report	592840
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	airspace violation : entry non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Airport Airspace Structure Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airspace Structure	special use : dcadiz.othersua

Narrative:

I was practicing navigation tracking of vors. I was tuned into csn VOR. Upon takeoff from manassas, I placed my transponder code in and reported to pct. When I left ADIZ area, I was instructed to squawk 1200. I was attempting to approach csn VOR from different bearings and hadn't realized I had re-entered the ADIZ area. As soon as I realized it, I immediately contacted potomac and asked for instructions. I was given an ADIZ code and instructed to return to hef to land. Upon landing, I immediately called to report the incident.

Original NASA ASRS Text

Title: PVT PLT OF C172 RE-ENTERS DC ADIZ WITHOUT CLRNC OR DISCRETE CODE AFTER EXITING FROM SAME.

Narrative: I WAS PRACTICING NAV TRACKING OF VORS. I WAS TUNED INTO CSN VOR. UPON TKOF FROM MANASSAS, I PLACED MY XPONDER CODE IN AND RPTED TO PCT. WHEN I LEFT ADIZ AREA, I WAS INSTRUCTED TO SQUAWK 1200. I WAS ATTEMPTING TO APCH CSN VOR FROM DIFFERENT BEARINGS AND HADN'T REALIZED I HAD RE-ENTERED THE ADIZ AREA. AS SOON AS I REALIZED IT, I IMMEDIATELY CONTACTED POTOMAC AND ASKED FOR INSTRUCTIONS. I WAS GIVEN AN ADIZ CODE AND INSTRUCTED TO RETURN TO HEF TO LAND. UPON LNDG, I IMMEDIATELY CALLED TO RPT THE INCIDENT.

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.