Flight crew misheard clearance, and failed to get ATC acknowledgement. Crossing restr overshot.

Attributes
ACN	306480
Time
Date	199506
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : clt
State Reference	NC
Altitude	msl bound lower : 11400 msl bound upper : 12000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : ztl
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 19000 flight time type : 3000
ASRS Report	306480
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 7300 flight time type : 3000
ASRS Report	306477
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I read back a clearance to be at 11000 ft, 40 mi northwest of clt at 250 KTS. Put 11000 ft in box and 40 mi reminder on wheel. At approximately 11400 ft, ZTL told us the clearance was to be at 12000 ft. Told him I had read back 11000 ft but did not get a response from center to confirm. ATC said there was no problem or conflict and we were then cleared to clt approach. In the mean time we climbed back to 12000 ft. I should have made ATC confirm what I read back, but it was busy at that time. Supplemental information from acn 306477: inbound to clt on the shine 5 arrival captain read back very clearly 'cross shine at 11000 ft and 250 KTS.' ATC did not reply so we crossed shine at 11000 ft and 250 KTS. Atlanta said we were to cross shine at 12000 ft and 250 KTS. ATC should listen to our reply before jumping off the frequency. This would help the flight crew's, a great deal, from reading back wrong, or what we thought was the right altitude.

Original NASA ASRS Text

Title: FLC MISHEARD CLRNC, AND FAILED TO GET ATC ACKNOWLEDGEMENT. XING RESTR OVERSHOT.

Narrative: I READ BACK A CLRNC TO BE AT 11000 FT, 40 MI NW OF CLT AT 250 KTS. PUT 11000 FT IN BOX AND 40 MI REMINDER ON WHEEL. AT APPROX 11400 FT, ZTL TOLD US THE CLRNC WAS TO BE AT 12000 FT. TOLD HIM I HAD READ BACK 11000 FT BUT DID NOT GET A RESPONSE FROM CTR TO CONFIRM. ATC SAID THERE WAS NO PROB OR CONFLICT AND WE WERE THEN CLRED TO CLT APCH. IN THE MEAN TIME WE CLBED BACK TO 12000 FT. I SHOULD HAVE MADE ATC CONFIRM WHAT I READ BACK, BUT IT WAS BUSY AT THAT TIME. SUPPLEMENTAL INFO FROM ACN 306477: INBOUND TO CLT ON THE SHINE 5 ARR CAPT READ BACK VERY CLRLY 'CROSS SHINE AT 11000 FT AND 250 KTS.' ATC DID NOT REPLY SO WE CROSSED SHINE AT 11000 FT AND 250 KTS. ATLANTA SAID WE WERE TO CROSS SHINE AT 12000 FT AND 250 KTS. ATC SHOULD LISTEN TO OUR REPLY BEFORE JUMPING OFF THE FREQ. THIS WOULD HELP THE FLC'S, A GREAT DEAL, FROM READING BACK WRONG, OR WHAT WE THOUGHT WAS THE RIGHT ALT.

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.