Air intercept on a C170 who stayed into the northeast portion of airspace at P49.

Attributes
ACN	638847
Time
Date	200411
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	special use airspace : p49.prohibited
State Reference	TX
Altitude	msl single value : 3700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : act.tracon
Make Model Name	Cessna 170
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Aircraft 2
Controlling Facilities	tracon : act.tracon
Operator	other
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 13000 flight time type : 1400
ASRS Report	638847
Person 2
Affiliation	government : faa
Function	other personnel
Events
Anomaly	airspace violation : entry non adherence : published procedure non adherence : far other spatial deviation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact other
Consequence	faa : investigated
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Gtw-act-gle, received a full brief with san angelo FSS. Knowledge of P49 expanded to 30 mi was received. Used WAC chart which does not show expanded airspace. Miscalculated distance from center and turned into P49. Intercepted at 18 NM from center and directed to land at waco regional airport. It would be nice if expanded airspace was published on WAC's. Real problems: 1) pilot did not properly chart out airspace on a sectional before departing, and 2) pilot did not use ATC system to keep clear.

Original NASA ASRS Text

Title: AIR INTERCEPT ON A C170 WHO STAYED INTO THE NE PORTION OF AIRSPACE AT P49.

Narrative: GTW-ACT-GLE, RECEIVED A FULL BRIEF WITH SAN ANGELO FSS. KNOWLEDGE OF P49 EXPANDED TO 30 MI WAS RECEIVED. USED WAC CHART WHICH DOES NOT SHOW EXPANDED AIRSPACE. MISCALCULATED DISTANCE FROM CTR AND TURNED INTO P49. INTERCEPTED AT 18 NM FROM CTR AND DIRECTED TO LAND AT WACO REGIONAL ARPT. IT WOULD BE NICE IF EXPANDED AIRSPACE WAS PUBLISHED ON WAC'S. REAL PROBS: 1) PLT DID NOT PROPERLY CHART OUT AIRSPACE ON A SECTIONAL BEFORE DEPARTING, AND 2) PLT DID NOT USE ATC SYS TO KEEP CLR.

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.