Air carrier X failed to comply with ATC clearance. Climb to wrong altitude. Approach controller failed to hear incorrect readback. Operational deviation.

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Attributes
ACN	143086
Time
Date	199004
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bdl
State Reference	CT
Altitude	msl bound lower : 10000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw tracon : bdl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 9000 flight time type : 6000
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation Operational Deviation

Narrative:

Air carrier X with clearance to 5000' after departure from bdl ATC gave 150 degree heading and 10000'. I read back 150 degrees and 12000'. We were given a frequency change to ZBW climbing through approximately 9000'. After contacting ZBW and level 12000', air carrier X told that our clearance was to only 10000'. After landing dca I called bdl departure. After listening to the playback of tape, the supervisor verified the controller issued 10000' and I read back 12000'. The controller missed the wrong altitude on readback and I had missed the correct altitude readback. Both of us need to be more observant and listen more intently.

Original NASA ASRS Text

Title: ACR X FAILED TO COMPLY WITH ATC CLRNC. CLIMB TO WRONG ALT. APCH CTLR FAILED TO HEAR INCORRECT READBACK. OPERATIONAL DEVIATION.

Narrative: ACR X WITH CLRNC TO 5000' AFTER DEP FROM BDL ATC GAVE 150 DEG HDG AND 10000'. I READ BACK 150 DEGS AND 12000'. WE WERE GIVEN A FREQ CHANGE TO ZBW CLBING THROUGH APPROX 9000'. AFTER CONTACTING ZBW AND LEVEL 12000', ACR X TOLD THAT OUR CLRNC WAS TO ONLY 10000'. AFTER LNDG DCA I CALLED BDL DEP. AFTER LISTENING TO THE PLAYBACK OF TAPE, THE SUPVR VERIFIED THE CTLR ISSUED 10000' AND I READ BACK 12000'. THE CTLR MISSED THE WRONG ALT ON READBACK AND I HAD MISSED THE CORRECT ALT READBACK. BOTH OF US NEED TO BE MORE OBSERVANT AND LISTEN MORE INTENTLY.

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.