On descent with a medical emergency the flight crew assigned 11000 ft descends to 10600 ft.

Attributes
ACN	290472
Time
Date	199412
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : clt
State Reference	NC
Altitude	msl bound lower : 10500 msl bound upper : 11000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	artcc : zoa
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute airway : zjx
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 : 11000 flight time type : 5000
ASRS Report	290472
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot other anomaly other
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	controller : issued new clearance flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Notified by flight attendant, shortly after we reached cruise altitude, that a passenger had stopped breathing. I notified ZJX that we had a medical emergency and I was to return to clt. He immediately cleared me direct clt, descend 11000 ft and turned me over to clt approach. During the descent I inadvertently descended to 10600 ft before correcting. As I was climbing back to 11000 ft, clt cleared me back down to 7000 ft.

Original NASA ASRS Text

Title: ON DSCNT WITH A MEDICAL EMER THE FLC ASSIGNED 11000 FT DSNDS TO 10600 FT.

Narrative: NOTIFIED BY FLT ATTENDANT, SHORTLY AFTER WE REACHED CRUISE ALT, THAT A PAX HAD STOPPED BREATHING. I NOTIFIED ZJX THAT WE HAD A MEDICAL EMER AND I WAS TO RETURN TO CLT. HE IMMEDIATELY CLRED ME DIRECT CLT, DSND 11000 FT AND TURNED ME OVER TO CLT APCH. DURING THE DSCNT I INADVERTENTLY DSNDED TO 10600 FT BEFORE CORRECTING. AS I WAS CLBING BACK TO 11000 FT, CLT CLRED ME BACK DOWN TO 7000 FT.

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.