Training in progress at the radar position in ZDC ARTCC. Controller in training climbed an air carrier MD80 through the altitude of another air carrier MD80 while his instructor was distraction with coordination with adjacent sector. Conflict alert activated as did the TCASII on one of the MD80's, but the flight crew had the other aircraft visually and didn't respond to the RA.

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Attributes
ACN	379397
Time
Date	199709
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mol
State Reference	VA
Altitude	msl bound lower : 29000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 11
ASRS Report	379397
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : developmental
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other
Independent Detector	atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 16200 vertical : 900
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Training was being conducted at the ZDC R52 sector. Several aircraft going eastbound through the sector to ewr, were flying on bad IFR route. The trainer was distraction with the next sector about what route to issue ewr arrs. The trainee climbed air carrier X through the altitude of air carrier Y. When the trainer questioned his transmission, the problem was realized. The data blocks of air carrier X and air carrier Y were overlapping. Therefore, you were unable to see the mode C of other aircraft. The conflict alert was activated confirming that the 2 aircraft were in conflict. Air carrier Y was already switched to the next frequency. Air carrier X was vectored off course and reported visual with air carrier Y. Air carrier Y reported having a TCASII alert to traffic, but did not respond to the TCASII. The aircraft passed 2.7 mi and 900 ft apart.

Original NASA ASRS Text

Title: TRAINING IN PROGRESS AT THE RADAR POS IN ZDC ARTCC. CTLR IN TRAINING CLBED AN ACR MD80 THROUGH THE ALT OF ANOTHER ACR MD80 WHILE HIS INSTRUCTOR WAS DISTR WITH COORD WITH ADJACENT SECTOR. CONFLICT ALERT ACTIVATED AS DID THE TCASII ON ONE OF THE MD80'S, BUT THE FLC HAD THE OTHER ACFT VISUALLY AND DIDN'T RESPOND TO THE RA.

Narrative: TRAINING WAS BEING CONDUCTED AT THE ZDC R52 SECTOR. SEVERAL ACFT GOING EBOUND THROUGH THE SECTOR TO EWR, WERE FLYING ON BAD IFR RTE. THE TRAINER WAS DISTR WITH THE NEXT SECTOR ABOUT WHAT RTE TO ISSUE EWR ARRS. THE TRAINEE CLBED ACR X THROUGH THE ALT OF ACR Y. WHEN THE TRAINER QUESTIONED HIS XMISSION, THE PROB WAS REALIZED. THE DATA BLOCKS OF ACR X AND ACR Y WERE OVERLAPPING. THEREFORE, YOU WERE UNABLE TO SEE THE MODE C OF OTHER ACFT. THE CONFLICT ALERT WAS ACTIVATED CONFIRMING THAT THE 2 ACFT WERE IN CONFLICT. ACR Y WAS ALREADY SWITCHED TO THE NEXT FREQ. ACR X WAS VECTORED OFF COURSE AND RPTED VISUAL WITH ACR Y. ACR Y RPTED HAVING A TCASII ALERT TO TFC, BUT DID NOT RESPOND TO THE TCASII. THE ACFT PASSED 2.7 MI AND 900 FT APART.

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.