Air carrier medium large transport track heading deviation to avoid thunderstorm buildup on track. C...

Attributes
ACN	184900
Time
Date	199107
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : nas
State Reference	FO
Altitude	msl bound lower : 4000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : nas
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 202 flight time total : 7919
ASRS Report	184900
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	inflight encounter : weather non adherence : clearance non adherence : far other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was captain of flight from NAS to clt. Shortly after takeoff we were cleared 'on course' and we turned right and intercepted BR65V. While climbing the first officer (who was flying) said he'd like to deviation left of course for a circuit breaker cell we saw maybe 10 mi ahead. Controller was talking nonstop and before I could request a left deviation, the first officer started a left turn, controller was still talking when suddenly she asks us if we are still on course. I said, no, we turned left for WX and that we tried to get a word in edgewise. She was upset, said another aircraft was descending and we would be climbing through his altitude and she issued these clrncs based on our being on course. She also told us to level at 7000 ft to prevent a possible problem (we were going to 12000 I believe) and not to deviation without her permission. I apologized and nothing further was said. We all know we are not supposed to deviation without controller permission, but she talked for quite a long time (with a few replies from another aircraft) and I did not want to fly into that WX. I probably should have squawked 7700 but I kept expecting to be able to advise her.

Original NASA ASRS Text

Title: ACR MLG TRACK HDG DEV TO AVOID TSTM BUILDUP ON TRACK. CLAIMS THEY COULD NOT ADVISE ATC BECAUSE OF FREQ CONGESTION.

Narrative: I WAS CAPT OF FLT FROM NAS TO CLT. SHORTLY AFTER TKOF WE WERE CLRED 'ON COURSE' AND WE TURNED R AND INTERCEPTED BR65V. WHILE CLBING THE FO (WHO WAS FLYING) SAID HE'D LIKE TO DEV L OF COURSE FOR A CB CELL WE SAW MAYBE 10 MI AHEAD. CTLR WAS TALKING NONSTOP AND BEFORE I COULD REQUEST A L DEV, THE FO STARTED A L TURN, CTLR WAS STILL TALKING WHEN SUDDENLY SHE ASKS US IF WE ARE STILL ON COURSE. I SAID, NO, WE TURNED L FOR WX AND THAT WE TRIED TO GET A WORD IN EDGEWISE. SHE WAS UPSET, SAID ANOTHER ACFT WAS DSNDING AND WE WOULD BE CLBING THROUGH HIS ALT AND SHE ISSUED THESE CLRNCS BASED ON OUR BEING ON COURSE. SHE ALSO TOLD US TO LEVEL AT 7000 FT TO PREVENT A POSSIBLE PROBLEM (WE WERE GOING TO 12000 I BELIEVE) AND NOT TO DEV WITHOUT HER PERMISSION. I APOLOGIZED AND NOTHING FURTHER WAS SAID. WE ALL KNOW WE ARE NOT SUPPOSED TO DEV WITHOUT CTLR PERMISSION, BUT SHE TALKED FOR QUITE A LONG TIME (WITH A FEW REPLIES FROM ANOTHER ACFT) AND I DID NOT WANT TO FLY INTO THAT WX. I PROBABLY SHOULD HAVE SQUAWKED 7700 BUT I KEPT EXPECTING TO BE ABLE TO ADVISE HER.

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.

Air carrier medium large transport track heading deviation to avoid thunderstorm buildup on track. Claims they could not advise ATC because of frequency congestion.