ZDC controller initiates incomplete coordination with adjoining sector controller for B738 in WX deviation which results in a loss of separation with a B733.

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Attributes
ACN	557189
Time
Date	200207
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : fkn.vortac
State Reference	VA
Altitude	msl bound lower : 29700 msl bound upper : 31000
Environment
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : enroute altitude change
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar pilot : instrument
Experience	controller radar : 13 controller time certified in position1 : 3 flight time total : 2000
ASRS Report	557189
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	inflight encounter : weather non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment : conflict alert aircraft equipment other aircraft equipment : wx radar
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 21000 vertical : 1400
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance Weather
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure Operational Error

Narrative:

The night of the occurrence, there were numerous thunderstorms. 95% of the traffic I was working were deviating. This one aircraft was off course due to WX. This required several pointouts to 4 different sectors. On one of the pointouts, I did not mention that the aircraft was deviating, but the aircraft was obviously off course. This aircraft was descending to FL280 leaving FL297. Lost separation with aircraft #2 who was at FL310.

Original NASA ASRS Text

Title: ZDC CTLR INITIATES INCOMPLETE COORD WITH ADJOINING SECTOR CTLR FOR B738 IN WX DEV WHICH RESULTS IN A LOSS OF SEPARATION WITH A B733.

Narrative: THE NIGHT OF THE OCCURRENCE, THERE WERE NUMEROUS TSTMS. 95% OF THE TFC I WAS WORKING WERE DEVIATING. THIS ONE ACFT WAS OFF COURSE DUE TO WX. THIS REQUIRED SEVERAL POINTOUTS TO 4 DIFFERENT SECTORS. ON ONE OF THE POINTOUTS, I DID NOT MENTION THAT THE ACFT WAS DEVIATING, BUT THE ACFT WAS OBVIOUSLY OFF COURSE. THIS ACFT WAS DSNDING TO FL280 LEAVING FL297. LOST SEPARATION WITH ACFT #2 WHO WAS AT FL310.

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.