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Deviation from procedure and clearance when the PIC of an FK100 turns off course to avoid a thunderstorm near J21 on frequency with ZKC, ks.
| Attributes | |
| ACN | 550063 |
| Time | |
| Date | 200206 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : judge |
| State Reference | KS |
| Altitude | msl single value : 35000 |
| Environment | |
| Flight Conditions | Marginal |
| Weather Elements | Thunderstorm |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : j211.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 550063 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | inflight encounter : weather non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : radar other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor Airspace Structure ATC Human Performance Weather |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
ATC facility, ZKC. Location J21 approximately 100 NM north of judge intersection. En route on J21, approached anvil overhang from thunderstorm to the west. Attempted multiple calls to ATC for deviation left clearance which were either blocked or unanswered due to frequency congestion. Deviated 25 degrees left heading to 5 NM east of track to avoid WX and finally successfully informed ATC of deviation. ATC advised to turn back to 235 degree heading. Complied with ATC, but also advised unable to maintain that heading due to WX. ATC again directed that we maintain a 235 degree heading. After a second exchange with ATC emphasizing the need to again deviate left, ATC 'authorized' the deviation and descended our flight to FL330 'for traffic.'
Original NASA ASRS Text
Title: DEV FROM PROC AND CLRNC WHEN THE PIC OF AN FK100 TURNS OFF COURSE TO AVOID A TSTM NEAR J21 ON FREQ WITH ZKC, KS.
Narrative: ATC FACILITY, ZKC. LOCATION J21 APPROX 100 NM N OF JUDGE INTXN. ENRTE ON J21, APCHED ANVIL OVERHANG FROM TSTM TO THE W. ATTEMPTED MULTIPLE CALLS TO ATC FOR DEV L CLRNC WHICH WERE EITHER BLOCKED OR UNANSWERED DUE TO FREQ CONGESTION. DEVIATED 25 DEGS L HDG TO 5 NM E OF TRACK TO AVOID WX AND FINALLY SUCCESSFULLY INFORMED ATC OF DEV. ATC ADVISED TO TURN BACK TO 235 DEG HDG. COMPLIED WITH ATC, BUT ALSO ADVISED UNABLE TO MAINTAIN THAT HDG DUE TO WX. ATC AGAIN DIRECTED THAT WE MAINTAIN A 235 DEG HDG. AFTER A SECOND EXCHANGE WITH ATC EMPHASIZING THE NEED TO AGAIN DEVIATE L, ATC 'AUTHORIZED' THE DEV AND DESCENDED OUR FLT TO FL330 'FOR 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.