Reported loss of separation between 2 climbing air carrier B737's on similar courses.

Attributes
ACN	389895
Time
Date	199712
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gve
State Reference	VA
Altitude	msl bound lower : 24000 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc tower : mem
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 16
ASRS Report	389895
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 13000 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft #1 was level at FL240. Aircraft #2 checked on the frequency climbing to FL230, on a similar (southwesterly) course. Aircraft #2 was issued climb to FL270. Unrelated coordination caused a distraction, and the position of both aircraft was not monitored. The computerized 'conflict alert' redirected attention to the conflict. Vectors were issued (aircraft #1: 180 degrees, aircraft #2: 260 degrees) to regain standard separation.

Original NASA ASRS Text

Title: RPTED LOSS OF SEPARATION BTWN 2 CLBING ACR B737'S ON SIMILAR COURSES.

Narrative: ACFT #1 WAS LEVEL AT FL240. ACFT #2 CHKED ON THE FREQ CLBING TO FL230, ON A SIMILAR (SOUTHWESTERLY) COURSE. ACFT #2 WAS ISSUED CLB TO FL270. UNRELATED COORD CAUSED A DISTR, AND THE POS OF BOTH ACFT WAS NOT MONITORED. THE COMPUTERIZED 'CONFLICT ALERT' REDIRECTED ATTN TO THE CONFLICT. VECTORS WERE ISSUED (ACFT #1: 180 DEGS, ACFT #2: 260 DEGS) TO REGAIN STANDARD SEPARATION.

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.