Potential conflict between air carrier-medium large transport and unk.

Attributes
ACN	104355
Time
Date	198902
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cha
State Reference	TN
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : cha
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 5000 flight time type : 600
ASRS Report	104358
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
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

After takeoff from runway 02 from cha with a clearance of runway heading and climb to 10000', we were handed over to cha departure control. Upon climbing through about 3000' MSL, we were given a left turn to the wnw and a climb clearance to 17000' MSL. This was heard by both pilots and acknowledged. Upon climbing through 10500' MSL the controller said, 'maintain 10000'.' we immediately began a descent back to 10000'. When we acknowledged, the controller said there was traffic at 11000'. No bearing nor range was given. We inquired about the climb to 17000' but no response was given. Within a few seconds we were given a frequency change to center. Upon checking in with center, we were acknowledged with a climb to 17000'. Remainder of flight was west/O incident.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT BETWEEN ACR-MLG AND UNK.

Narrative: AFTER TKOF FROM RWY 02 FROM CHA WITH A CLRNC OF RWY HDG AND CLB TO 10000', WE WERE HANDED OVER TO CHA DEP CTL. UPON CLBING THROUGH ABOUT 3000' MSL, WE WERE GIVEN A LEFT TURN TO THE WNW AND A CLB CLRNC TO 17000' MSL. THIS WAS HEARD BY BOTH PLTS AND ACKNOWLEDGED. UPON CLBING THROUGH 10500' MSL THE CTLR SAID, 'MAINTAIN 10000'.' WE IMMEDIATELY BEGAN A DSCNT BACK TO 10000'. WHEN WE ACKNOWLEDGED, THE CTLR SAID THERE WAS TFC AT 11000'. NO BEARING NOR RANGE WAS GIVEN. WE INQUIRED ABOUT THE CLB TO 17000' BUT NO RESPONSE WAS GIVEN. WITHIN A FEW SECS WE WERE GIVEN A FREQ CHANGE TO CENTER. UPON CHKING IN WITH CENTER, WE WERE ACKNOWLEDGED WITH A CLB TO 17000'. REMAINDER OF FLT WAS W/O INCIDENT.

Data retrieved from NASA's ASRS site as of August 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.