Air carrier departure from bwi voiced concern regarding assigned departure frequencies as related to...

Narrative:

I; the first officer; was the non-flying pilot. Our pre departure clearance had a departure frequency listed of 128.7. After takeoff from runway 15R; bwi tower switched us to departure on a new frequency of 119.7. I called departure and noticed that this frequency of 119.7 was a higher altitude frequency with other communications of aircraft descending out of the flight levels. I switched to our original frequency of 128.7 and potomac departure responded with our clearance. I immediately informed him that bwi tower had given us 119.7 vs. 128.7 to which the controller responded that they were 'switching frequencies.' the reason for this report is due to a similar problem which I had last month out of a different washington metro area airport. Each problem was associated with 'potomac departure control.' there is a problem in potomac approach/departure. This is my second report in 20 days with communication/frequency issues here. I know for a fact during this incident we did what we were told to do. I am expressing true concern of the ATC system here in dca.

Original NASA ASRS Text

Title: Air Carrier departure from BWI voiced concern regarding assigned departure frequencies as related to BWI Tower and PCT Departure Control; alleging multiple events of wrong frequency assignments.

Narrative: I; the First Officer; was the non-flying pilot. Our PDC had a departure frequency listed of 128.7. After takeoff from Runway 15R; BWI Tower switched us to Departure on a new frequency of 119.7. I called Departure and noticed that this frequency of 119.7 was a higher altitude frequency with other communications of aircraft descending out of the flight levels. I switched to our original frequency of 128.7 and Potomac Departure responded with our clearance. I immediately informed him that BWI Tower had given us 119.7 vs. 128.7 to which the Controller responded that they were 'switching frequencies.' The reason for this report is due to a similar problem which I had last month out of a different Washington Metro Area airport. Each problem was associated with 'Potomac Departure Control.' There is a problem in Potomac Approach/Departure. This is my second report in 20 days with communication/frequency issues here. I know for a fact during this incident we did what we were told to do. I am expressing true concern of the ATC system here in DCA.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	948911
Time
Date	201105
Local Time Of Day	0601-1200
Place
Locale Reference	BWI.Airport
State Reference	MD
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Experience	Flight Crew Last 90 Days 240 Flight Crew Total 12800 Flight Crew Type 6902
Events
Anomaly	ATC Issue All Types

Air carrier departure from bwi voiced concern regarding assigned departure frequencies as related to bwi tower and pct departure control; alleging multiple events of wrong frequency assignments.