Air carrier was issued a climb through an occupied altitude resulting in less than standard separati...

Attributes
ACN	159441
Time
Date	199010
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : nhk
State Reference	MD
Altitude	msl bound lower : 25000 msl bound upper : 26000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 20
ASRS Report	159441
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	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 20000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Air carrier X nebnd at FL250, air carrier Y swbnd climbing to FL230 then issued climb to FL260. Sector was getting busy with additional flts and coordination which took attention away from air carrier X and air carrier Y. Conflict alert went off and both aircraft were issued 30 degree turns. Air carrier X acknowledged. I thought air carrier Y did also but apparently did not. I should have asked for assistance sooner which probably would have helped and I should not have been issued a climb to FL260 until later.

Original NASA ASRS Text

Title: ACR WAS ISSUED A CLIMB THROUGH AN OCCUPIED ALT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: ACR X NEBND AT FL250, ACR Y SWBND CLBING TO FL230 THEN ISSUED CLB TO FL260. SECTOR WAS GETTING BUSY WITH ADDITIONAL FLTS AND COORD WHICH TOOK ATTN AWAY FROM ACR X AND ACR Y. CONFLICT ALERT WENT OFF AND BOTH ACFT WERE ISSUED 30 DEG TURNS. ACR X ACKNOWLEDGED. I THOUGHT ACR Y DID ALSO BUT APPARENTLY DID NOT. I SHOULD HAVE ASKED FOR ASSISTANCE SOONER WHICH PROBABLY WOULD HAVE HELPED AND I SHOULD NOT HAVE BEEN ISSUED A CLB TO FL260 UNTIL LATER.

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.

Air carrier was issued a climb through an occupied altitude resulting in less than standard separation.