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Reporter has to divert around thunderstorm line before he can gain coordination for heading track position deviation with ATC.
| Attributes | |
| ACN | 312510 |
| Time | |
| Date | 199508 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mjzs |
| State Reference | PR |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : mjzs tracon : pdx |
| Operator | common carrier : air carrier |
| Make Model Name | Airbus Industrie Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other other |
| Route In Use | enroute : other oceanic enroute : atlantic enroute airway : mjzs enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 312510 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe inflight encounter : weather non adherence : clearance other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : exited adverse environment |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Weather |
Narrative:
Northbound at FL310 on G432, a large and intense area of cumulo nimbus and thunderstorm activity straddled the airway. Requested east deviation through HF radio, had to start deviation before, ATC communications relay delays told us we could not deviate east. At that time we were committed and used captain's emergency authority/authorized to deviation east until we could get through a break and get back to the airway. Much more deviating with ATC approval, eventually went so far west we rerted onto A523 to complete the flight. ATC did have a potential traffic conflict but changed his altitude to solve that problem. Another flight also had to use captain emergency authority/authorized to deviate in that area.
Original NASA ASRS Text
Title: RPTR HAS TO DIVERT AROUND TSTM LINE BEFORE HE CAN GAIN COORD FOR HDG TRACK POS DEV WITH ATC.
Narrative: NBOUND AT FL310 ON G432, A LARGE AND INTENSE AREA OF CUMULO NIMBUS AND TSTM ACTIVITY STRADDLED THE AIRWAY. REQUESTED E DEV THROUGH HF RADIO, HAD TO START DEV BEFORE, ATC COMS RELAY DELAYS TOLD US WE COULD NOT DEVIATE E. AT THAT TIME WE WERE COMMITTED AND USED CAPT'S EMER AUTH TO DEV E UNTIL WE COULD GET THROUGH A BREAK AND GET BACK TO THE AIRWAY. MUCH MORE DEVIATING WITH ATC APPROVAL, EVENTUALLY WENT SO FAR W WE RERTED ONTO A523 TO COMPLETE THE FLT. ATC DID HAVE A POTENTIAL TFC CONFLICT BUT CHANGED HIS ALT TO SOLVE THAT PROB. ANOTHER FLT ALSO HAD TO USE CAPT EMER AUTH TO DEVIATE IN THAT AREA.
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.