MD80 received TCASII RA caused by traffic below overshooting its assigned altitude during climb.

Attributes
ACN	450785
Time
Date	199910
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : hvq.vor
State Reference	WV
Altitude	msl bound lower : 28000 msl bound upper : 28500
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid.artcc tower : atl.tower
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute airway : v6.airway
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Phase	cruise : descent cruise : enroute altitude change
Route In Use	enroute airway : j6.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp
ASRS Report	762
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	450785
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot conflict : airborne less severe non adherence : clearance
Resolutory Action	flight crew : returned to assigned altitude flight crew : took evasive action
Miss Distance	horizontal : 0 vertical : 700
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Responded to a TCASII RA, climbed 500 ft to FL285 to comply. Flight was climbing below us to FL270 when RA was received, but noted that the aircraft was 700 ft below us as we began to climb. We notified ZID and returned to FL280 without further incident.

Original NASA ASRS Text

Title: MD80 RECEIVED TCASII RA CAUSED BY TFC BELOW OVERSHOOTING ITS ASSIGNED ALT DURING CLB.

Narrative: RESPONDED TO A TCASII RA, CLBED 500 FT TO FL285 TO COMPLY. FLT WAS CLBING BELOW US TO FL270 WHEN RA WAS RECEIVED, BUT NOTED THAT THE ACFT WAS 700 FT BELOW US AS WE BEGAN TO CLB. WE NOTIFIED ZID AND RETURNED TO FL280 WITHOUT FURTHER INCIDENT.

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.