A departing air carrier medium large transport climbing through 11000 ft was issued a maintain altitude of 11000 ft after receiving a TCASII RA. Traffic was a gulfstream on converging course providing visual separation on the air carrier medium large transport. The gulfstream crossed approximately 800 ft below the air carrier aircraft.

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Attributes
ACN	414357
Time
Date	199809
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : aml airport : iad
State Reference	VA
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : iad
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Gulfstream Jet Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 11000 flight time type : 250
ASRS Report	414357
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 750
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

We were on an assigned heading to intercept the 091 degree radial of armel VORTAC. Destination ewr. Climbing through 11000 ft 17000 ft, received an RA to descend. The departure controller also gave us instructions to descend back to 11000 ft. At that point, we visually pick up a gulfstream cpr jet off our right and level with us on a west heading. The aircraft passed under us. One of the flight attendants stated that she actually saw the pilots' faces and arms as they passed under us! When we questioned the controller, all he said was that the gulfstream had a visual on us and that he was just handed off from center. The controller was extremely busy and no further explanation was given.

Original NASA ASRS Text

Title: A DEPARTING ACR MLG CLBING THROUGH 11000 FT WAS ISSUED A MAINTAIN ALT OF 11000 FT AFTER RECEIVING A TCASII RA. TFC WAS A GULFSTREAM ON CONVERGING COURSE PROVIDING VISUAL SEPARATION ON THE ACR MLG. THE GULFSTREAM CROSSED APPROX 800 FT BELOW THE ACR ACFT.

Narrative: WE WERE ON AN ASSIGNED HDG TO INTERCEPT THE 091 DEG RADIAL OF ARMEL VORTAC. DEST EWR. CLBING THROUGH 11000 FT 17000 FT, RECEIVED AN RA TO DSND. THE DEP CTLR ALSO GAVE US INSTRUCTIONS TO DSND BACK TO 11000 FT. AT THAT POINT, WE VISUALLY PICK UP A GULFSTREAM CPR JET OFF OUR R AND LEVEL WITH US ON A W HDG. THE ACFT PASSED UNDER US. ONE OF THE FLT ATTENDANTS STATED THAT SHE ACTUALLY SAW THE PLTS' FACES AND ARMS AS THEY PASSED UNDER US! WHEN WE QUESTIONED THE CTLR, ALL HE SAID WAS THAT THE GULFSTREAM HAD A VISUAL ON US AND THAT HE WAS JUST HANDED OFF FROM CTR. THE CTLR WAS EXTREMELY BUSY AND NO FURTHER EXPLANATION WAS GIVEN.

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.