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A captain reported misinterpreting a NOTAM closing his destination airport. He diverted to another airport after checking AWOS.
| Attributes | |
| ACN | 808890 |
| Time | |
| Date | 200810 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : 74v.airport |
| State Reference | UT |
| Altitude | msl single value : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 100 flight time total : 2750 flight time type : 100 |
| ASRS Report | 808890 |
| Events | |
| Anomaly | non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : awos other flight crewa |
| Resolutory Action | flight crew : diverted to another airport |
| Supplementary | |
| Problem Areas | Chart Or Publication FAA Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
This flight was diverted to vernal; ut by the PIC due to 74V airport closure by NOTAM. The PIC reviewed the NOTAM prior to filing but was not understood correctly. The PIC did not understand what ad meant and was unable to get an undecoded (english) translation of this symbol via duat/dtc. The PIC then incorrectly assumed that the runway would still be open because there was no specific NOTAM that indicated runway closure. Upon startup; our clearance was received from ATC; as filed; and the PIC incorrectly assumed that this confirmed that the airport/runway was indeed open. Upon initial descent to 74V; and after listening to the AWOS; the crew learned that the airport was actually closed; and diverted to vel. Weather was VMC within 100 miles of the entire area. The PIC could have researched the symbol further prior to filing and commencing the flight.
Original NASA ASRS Text
Title: A CAPT REPORTED MISINTERPRETING A NOTAM CLOSING HIS DESTINATION ARPT. HE DIVERTED TO ANOTHER AIRPORT AFTER CHECKING AWOS.
Narrative: THIS FLIGHT WAS DIVERTED TO VERNAL; UT BY THE PIC DUE TO 74V AIRPORT CLOSURE BY NOTAM. THE PIC REVIEWED THE NOTAM PRIOR TO FILING BUT WAS NOT UNDERSTOOD CORRECTLY. THE PIC DID NOT UNDERSTAND WHAT AD MEANT AND WAS UNABLE TO GET AN UNDECODED (ENGLISH) TRANSLATION OF THIS SYMBOL VIA DUAT/DTC. THE PIC THEN INCORRECTLY ASSUMED THAT THE RUNWAY WOULD STILL BE OPEN BECAUSE THERE WAS NO SPECIFIC NOTAM THAT INDICATED RUNWAY CLOSURE. UPON STARTUP; OUR CLEARANCE WAS RECEIVED FROM ATC; AS FILED; AND THE PIC INCORRECTLY ASSUMED THAT THIS CONFIRMED THAT THE AIRPORT/RUNWAY WAS INDEED OPEN. UPON INITIAL DESCENT TO 74V; AND AFTER LISTENING TO THE AWOS; THE CREW LEARNED THAT THE AIRPORT WAS ACTUALLY CLOSED; AND DIVERTED TO VEL. WEATHER WAS VMC WITHIN 100 MILES OF THE ENTIRE AREA. THE PIC COULD HAVE RESEARCHED THE SYMBOL FURTHER PRIOR TO FILING AND COMMENCING THE FLIGHT.
Data retrieved from NASA's ASRS site as of May 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.