ATC requested climb plus 2 turns apparently for traffic separation.

Attributes
ACN	302808
Time
Date	199504
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mem
State Reference	TN
Altitude	msl bound lower : 33000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zme tower : bwi
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : cfi
Experience	flight time last 90 days : 180 flight time total : 14850 flight time type : 2000
ASRS Report	302808
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 180 flight time total : 4000 flight time type : 2000
ASRS Report	302937
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

ATC requested climb to FL370 from FL330 for traffic separation. After climb began ATC requested approximately 90 degree left turn and then best rate of climb. After completion of turn ATC requested approximately 180 degree right turn for traffic and queried flight as to climb rate. ATC appeared very concerned with separation. Apparently not aware that climb rate would be compromised during turns. Either maneuver alone would have been adequate, but while turning aircraft unable to climb and while climbing unable to use high bank angles for turn due to lower speeds.

Original NASA ASRS Text

Title: ATC REQUESTED CLB PLUS 2 TURNS APPARENTLY FOR TFC SEPARATION.

Narrative: ATC REQUESTED CLB TO FL370 FROM FL330 FOR TFC SEPARATION. AFTER CLB BEGAN ATC REQUESTED APPROX 90 DEG L TURN AND THEN BEST RATE OF CLB. AFTER COMPLETION OF TURN ATC REQUESTED APPROX 180 DEG R TURN FOR TFC AND QUERIED FLT AS TO CLB RATE. ATC APPEARED VERY CONCERNED WITH SEPARATION. APPARENTLY NOT AWARE THAT CLB RATE WOULD BE COMPROMISED DURING TURNS. EITHER MANEUVER ALONE WOULD HAVE BEEN ADEQUATE, BUT WHILE TURNING ACFT UNABLE TO CLB AND WHILE CLBING UNABLE TO USE HIGH BANK ANGLES FOR TURN DUE TO LOWER SPDS.

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.