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Unable to obtain clearance to deviate for weather; A300 flight crew declares emergency to maintain separation.
| Attributes | |
| ACN | 758892 |
| Time | |
| Date | 200710 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : zzzzz |
| State Reference | FO |
| Altitude | msl single value : 32000 |
| Environment | |
| Weather Elements | Thunderstorm |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Route In Use | enroute airway : zzz.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 758892 |
| Events | |
| Anomaly | inflight encounter : weather other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : took precautionary avoidance action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather ATC Human Performance |
| Primary Problem | Weather |
Narrative:
South of nance noticed thunderstorms just north of intersection on airway. Requested 40 mi east of course from oceanic. Clearance was rejected. Requested 30 mi west of course from oceanic. Clearance was rejected. The only course of action left was to fly through the thunderstorms. Requested phone patch with center and requested the same clearance via phone patch. Both requests were again rejected. I told ATC controller that the only course of action left was to declare an emergency and proceed 30 mi west of course. Still unable to obtain clearance to deviate around the WX. At this time we declared an emergency and flew 30 mi west of airway due to thunderstorms. Followed procedure for off course deviations. Reported back on course after deviation.
Original NASA ASRS Text
Title: UNABLE TO OBTAIN CLRNC TO DEVIATE FOR WEATHER; A300 FLT CREW DECLARES EMERGENCY TO MAINTAIN SEPARATION.
Narrative: S OF NANCE NOTICED TSTMS JUST N OF INTXN ON AIRWAY. REQUESTED 40 MI E OF COURSE FROM OCEANIC. CLRNC WAS REJECTED. REQUESTED 30 MI W OF COURSE FROM OCEANIC. CLRNC WAS REJECTED. THE ONLY COURSE OF ACTION LEFT WAS TO FLY THROUGH THE TSTMS. REQUESTED PHONE PATCH WITH CENTER AND REQUESTED THE SAME CLRNC VIA PHONE PATCH. BOTH REQUESTS WERE AGAIN REJECTED. I TOLD ATC CTLR THAT THE ONLY COURSE OF ACTION LEFT WAS TO DECLARE AN EMER AND PROCEED 30 MI W OF COURSE. STILL UNABLE TO OBTAIN CLRNC TO DEVIATE AROUND THE WX. AT THIS TIME WE DECLARED AN EMER AND FLEW 30 MI W OF AIRWAY DUE TO TSTMS. FOLLOWED PROC FOR OFF COURSE DEVS. REPORTED BACK ON COURSE AFTER DEV.
Data retrieved from NASA's ASRS site as of January 2009 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.