Narrative:

ATC facility: ZNY. Location: north of didle intersection on A300. While proceeding at FL330 south of didle on A300, an area of convective activity approximately 30 mi from that point, required a deviation and due to traffic, new york oceanic did not authority/authorized us to leave the airway. The shortest direction to avoid the WX was to the east and the maximum distance necessary was 19 mi. We transmitted our intentions in the blind on guard and did not see any potential conflicts on TCASII throughout the deviation. We were back on course 220 mi north of wayde at approximately XA25Z and relayed that through new york commercial radio. I called dispatch with the details of exercising my emergency authority/authorized which were initially relayed via ACARS.

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Original NASA ASRS Text

Title: UNABLE TO GET CLRNC TO AVOID CONVECTIVE WX ON OCEANIC AIRWAY PLT EXERCISES EMER AUTH TO LEAVE AIRWAY AND CLR WX.

Narrative: ATC FACILITY: ZNY. LOCATION: N OF DIDLE INTXN ON A300. WHILE PROCEEDING AT FL330 S OF DIDLE ON A300, AN AREA OF CONVECTIVE ACTIVITY APPROX 30 MI FROM THAT POINT, REQUIRED A DEV AND DUE TO TFC, NEW YORK OCEANIC DID NOT AUTH US TO LEAVE THE AIRWAY. THE SHORTEST DIRECTION TO AVOID THE WX WAS TO THE E AND THE MAX DISTANCE NECESSARY WAS 19 MI. WE XMITTED OUR INTENTIONS IN THE BLIND ON GUARD AND DID NOT SEE ANY POTENTIAL CONFLICTS ON TCASII THROUGHOUT THE DEV. WE WERE BACK ON COURSE 220 MI N OF WAYDE AT APPROX XA25Z AND RELAYED THAT THROUGH NEW YORK COMMERCIAL RADIO. I CALLED DISPATCH WITH THE DETAILS OF EXERCISING MY EMER AUTH WHICH WERE INITIALLY RELAYED VIA ACARS.

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.