CL65 nearly penetrates P56 on river visual approach to dca.

Attributes
ACN	427930
Time
Date	199902
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dca.airport
State Reference	DC
Altitude	msl bound lower : 1000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : myf
Operator	common carrier : air carrier
Make Model Name	Challenger CL604
Operating Under FAR Part	Part 121
Navigation In Use	other other
Flight Phase	descent : approach
Route In Use	arrival : vfr
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : atp pilot : cfi pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 8000 flight time type : 300
ASRS Report	427930
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	airspace violation : entry non adherence : published procedure non adherence : far non adherence : clearance other spatial deviation
Independent Detector	atc equipment other atc equipment : tower radar other controllera
Resolutory Action	controller : issued new clearance controller : issued alert flight crew : returned to original clearance flight crew : took precautionary avoidance action flight crew : returned to assigned airspace
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

River visual runway 18 at dca. We were asked to remain at 3000 ft until 5 DME. Before the approach, I had entered the 3 DME, 900 ft visual descent point but was unable to enter the 4 DME, 1200 ft in the FMS due to distance too large. Coming closer to the runway, I attempted 1 more time to enter this visual descent point. When I looked up, we were flying on the eastern edge of the river as the captain was maneuvering for the final phase of the approach. The tower controller at this time advised us to 'turn right immediately to avoid P56,' which the captain did right away. We then continued the approach and landed without incident. From my seat it did not appear that the captain overflew 'the land' at any time while I was looking up, but was probably just at the edge of the river.

Original NASA ASRS Text

Title: CL65 NEARLY PENETRATES P56 ON RIVER VISUAL APCH TO DCA.

Narrative: RIVER VISUAL RWY 18 AT DCA. WE WERE ASKED TO REMAIN AT 3000 FT UNTIL 5 DME. BEFORE THE APCH, I HAD ENTERED THE 3 DME, 900 FT VISUAL DSCNT POINT BUT WAS UNABLE TO ENTER THE 4 DME, 1200 FT IN THE FMS DUE TO DISTANCE TOO LARGE. COMING CLOSER TO THE RWY, I ATTEMPTED 1 MORE TIME TO ENTER THIS VISUAL DSCNT POINT. WHEN I LOOKED UP, WE WERE FLYING ON THE EASTERN EDGE OF THE RIVER AS THE CAPT WAS MANEUVERING FOR THE FINAL PHASE OF THE APCH. THE TWR CTLR AT THIS TIME ADVISED US TO 'TURN R IMMEDIATELY TO AVOID P56,' WHICH THE CAPT DID RIGHT AWAY. WE THEN CONTINUED THE APCH AND LANDED WITHOUT INCIDENT. FROM MY SEAT IT DID NOT APPEAR THAT THE CAPT OVERFLEW 'THE LAND' AT ANY TIME WHILE I WAS LOOKING UP, BUT WAS PROBABLY JUST AT THE EDGE OF THE RIVER.

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.