An A300 flight crew deviate from assigned altitude to avoid WX.

Attributes
ACN	582769
Time
Date	200305
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mia.airport
State Reference	FL
Altitude	msl bound lower : 16000 msl bound upper : 17000
Environment
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia.tracon tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	582769
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	582936
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : exited adverse environment flight crew : took precautionary avoidance action
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Weather Environmental Factor
Primary Problem	Weather

Narrative:

We were given a climb to 16000 ft and a right turn to 360 degrees. We were in and out of the WX since departing mia. The captain started the turn and had leveled off at 16000 ft when we came out of the WX and noticed the tops of 2 cells that were clearly in our flight path. The captain executed his captain's authority/authorized and rolled out of the turn and started a climb to 17000 ft to avoid the cell. ATC was informed and had no problem with the deviation since there were numerous embedded thunderstorms in the area. Supplemental information from acn 582936: subsequently cleared us to climb to 17000 ft.

Original NASA ASRS Text

Title: AN A300 FLT CREW DEVIATE FROM ASSIGNED ALT TO AVOID WX.

Narrative: WE WERE GIVEN A CLB TO 16000 FT AND A R TURN TO 360 DEGS. WE WERE IN AND OUT OF THE WX SINCE DEPARTING MIA. THE CAPT STARTED THE TURN AND HAD LEVELED OFF AT 16000 FT WHEN WE CAME OUT OF THE WX AND NOTICED THE TOPS OF 2 CELLS THAT WERE CLRLY IN OUR FLT PATH. THE CAPT EXECUTED HIS CAPT'S AUTH AND ROLLED OUT OF THE TURN AND STARTED A CLB TO 17000 FT TO AVOID THE CELL. ATC WAS INFORMED AND HAD NO PROB WITH THE DEV SINCE THERE WERE NUMEROUS EMBEDDED TSTMS IN THE AREA. SUPPLEMENTAL INFO FROM ACN 582936: SUBSEQUENTLY CLRED US TO CLB TO 17000 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.