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Departure ord air carrier medium large transport made a WX deviation without departure controller clearance.
| Attributes | |
| ACN | 188063 |
| Time | |
| Date | 199108 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 6700 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer pilot : instrument pilot : private |
| Experience | flight time last 90 days : 200 flight time total : 3800 flight time type : 900 |
| ASRS Report | 188063 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 8000 flight time type : 6000 |
| ASRS Report | 187819 |
| Events | |
| Anomaly | inflight encounter : weather non adherence : required legal separation non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : exited adverse environment |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On departure turned left to assigned heading of 040 degree. Still in and out of cloud. Radar showed a cell 3 mi 12 O'clock and showed dense precipitation. Requested a 10-15 degree turn to right. Controller came back 'requesting a right turn, you were blocked' and continued giving clrncs to other aircraft without identing and asking who had made the request. We broke out of cloud and visually came into contact with the cell that our radar had idented. Estimate this thunderstorm cell to be 7000 higher. Turned right to avoid it at a 075 degree heading when controller stopped our climb at 7000 from our previous clearance to 13000. Asked why we had 'turned on our own'. We said he had been blocked and wasn't until we could fit into transmission break that we could report our heading. Controller said to call after landing. Captain called and debriefed. Supervisor reported 'no harm no foul' at chicago approach. Supplemental information from acn 187819: the frequency was too congested. The controller should have inquired about our blocked request for a turn. Then, we could have worked out a solution without getting too close to conflicting traffic.
Original NASA ASRS Text
Title: DEP ORD ACR MLG MADE A WX DEV WITHOUT DEP CTLR CLRNC.
Narrative: ON DEP TURNED L TO ASSIGNED HDG OF 040 DEG. STILL IN AND OUT OF CLOUD. RADAR SHOWED A CELL 3 MI 12 O'CLOCK AND SHOWED DENSE PRECIPITATION. REQUESTED A 10-15 DEG TURN TO R. CTLR CAME BACK 'REQUESTING A R TURN, YOU WERE BLOCKED' AND CONTINUED GIVING CLRNCS TO OTHER ACFT WITHOUT IDENTING AND ASKING WHO HAD MADE THE REQUEST. WE BROKE OUT OF CLOUD AND VISUALLY CAME INTO CONTACT WITH THE CELL THAT OUR RADAR HAD IDENTED. ESTIMATE THIS TSTM CELL TO BE 7000 HIGHER. TURNED R TO AVOID IT AT A 075 DEG HDG WHEN CTLR STOPPED OUR CLB AT 7000 FROM OUR PREVIOUS CLRNC TO 13000. ASKED WHY WE HAD 'TURNED ON OUR OWN'. WE SAID HE HAD BEEN BLOCKED AND WASN'T UNTIL WE COULD FIT INTO XMISSION BREAK THAT WE COULD RPT OUR HDG. CTLR SAID TO CALL AFTER LNDG. CAPT CALLED AND DEBRIEFED. SUPVR RPTED 'NO HARM NO FOUL' AT CHICAGO APCH. SUPPLEMENTAL INFO FROM ACN 187819: THE FREQ WAS TOO CONGESTED. THE CTLR SHOULD HAVE INQUIRED ABOUT OUR BLOCKED REQUEST FOR A TURN. THEN, WE COULD HAVE WORKED OUT A SOLUTION WITHOUT GETTING TOO CLOSE TO CONFLICTING TFC.
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.