Aircraft climbed above assigned altitude resulting in less than standard separation.

Attributes
ACN	137914
Time
Date	199002
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mor
State Reference	TN
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl artcc : zau
Operator	common carrier : air taxi
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : initial climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8300 flight time type : 1500
ASRS Report	137914
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	137644
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : required legal separation other anomaly other
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : assigned or threatened penalties faa : investigated
Miss Distance	horizontal : 27600 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight completed on feb/fri/90. No problems noted. My company was contacted on feb/mon of an altitude deviation. Allegedly I was cleared to 10000, acknowledged 10000' and was switched from knoxville approach (departure) to ZTL. I checked in with atlanta '...climbing to 11000'.' I was further cleared to climb and we carried out the trip normally, with no hint of any deviation. It is unclear at this point why I would have been climbing to 11000' or why no controller attempted to analyze or correct the situation as it was progressing. I have subsequently been told there was another aircraft that came within 4.6 mi at 11000'. I have been told nashville FSDO will be filing a pilot deviation form and seek a violation.

Original NASA ASRS Text

Title: ACFT CLIMBED ABOVE ASSIGNED ALT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: FLT COMPLETED ON FEB/FRI/90. NO PROBLEMS NOTED. MY COMPANY WAS CONTACTED ON FEB/MON OF AN ALT DEVIATION. ALLEGEDLY I WAS CLRED TO 10000, ACKNOWLEDGED 10000' AND WAS SWITCHED FROM KNOXVILLE APCH (DEP) TO ZTL. I CHECKED IN WITH ATLANTA '...CLIMBING TO 11000'.' I WAS FURTHER CLRED TO CLIMB AND WE CARRIED OUT THE TRIP NORMALLY, WITH NO HINT OF ANY DEVIATION. IT IS UNCLEAR AT THIS POINT WHY I WOULD HAVE BEEN CLIMBING TO 11000' OR WHY NO CTLR ATTEMPTED TO ANALYZE OR CORRECT THE SITUATION AS IT WAS PROGRESSING. I HAVE SUBSEQUENTLY BEEN TOLD THERE WAS ANOTHER ACFT THAT CAME WITHIN 4.6 MI AT 11000'. I HAVE BEEN TOLD NASHVILLE FSDO WILL BE FILING A PLT DEVIATION FORM AND SEEK A VIOLATION.

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.