ARTCC radar controller issued FL230 when apparently meant to assign FL220.

Attributes
ACN	89935
Time
Date	198806
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cxr
State Reference	OH
Altitude	msl bound lower : 22000 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 14000 flight time type : 1200
ASRS Report	89935
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	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:

Out of FL215 I verified clearance to FL230, leveled off at FL230. Shortly after cle center instructed us to descend to FL220 indicating we were at the wrong altitude. We received a clearance to FL230, the clearance was read back. I believe the controller had a mindset of FL230 for future clearance to the higher sectors and missed the fact we were only filed for FL220. An air carrier, buf to cle, a short distance ahead of us had the same situation happen to them.

Original NASA ASRS Text

Title: ARTCC RADAR CTLR ISSUED FL230 WHEN APPARENTLY MEANT TO ASSIGN FL220.

Narrative: OUT OF FL215 I VERIFIED CLRNC TO FL230, LEVELED OFF AT FL230. SHORTLY AFTER CLE CENTER INSTRUCTED US TO DSND TO FL220 INDICATING WE WERE AT THE WRONG ALT. WE RECEIVED A CLRNC TO FL230, THE CLRNC WAS READ BACK. I BELIEVE THE CTLR HAD A MINDSET OF FL230 FOR FUTURE CLRNC TO THE HIGHER SECTORS AND MISSED THE FACT WE WERE ONLY FILED FOR FL220. AN ACR, BUF TO CLE, A SHORT DISTANCE AHEAD OF US HAD THE SAME SITUATION HAPPEN TO THEM.

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.