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B737 crew departed the originating station without a required mountain top wind report for the desired runway at the destination airport.
| Attributes | |
| ACN | 627558 |
| Time | |
| Date | 200408 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : jnu.airport |
| State Reference | AK |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude descent : approach |
| Route In Use | approach : instrument non precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 627558 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 627546 |
| Events | |
| Anomaly | non adherence : published procedure non adherence : company policies |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Flight Crew Human Performance |
Narrative:
When I reviewed the notes for jnu, I glanced over the note about winds not being available. With clear skies and calm winds at the airport and the 2 other anemometers reporting 2 KTS of wind, the best choice to expedite our arrival was the RNAV xx. We first checked the hill winds prior to departing. Mountain wind was 'not available' at that time. I was caught in the familiar situation at jnu where it is not uncommon for one of the anemometer reports to be not available. I had forgotten the note that 'mountain wind must be operative' regardless of the WX. On arrival, jnu operations reported virtually the same winds with again wind 'not available.' the arrival was uneventful. I only became aware of our error when, as I was signing the new release for the leg to ZZZ1 an amended release was sent from dispatch, deleting RNAV as a takeoff option. This occurred because the operations agent had just called dispatcher reminding them of wind conditions.
Original NASA ASRS Text
Title: B737 CREW DEPARTED THE ORIGINATING STATION WITHOUT A REQUIRED MOUNTAIN TOP WIND RPT FOR THE DESIRED RWY AT THE DEST ARPT.
Narrative: WHEN I REVIEWED THE NOTES FOR JNU, I GLANCED OVER THE NOTE ABOUT WINDS NOT BEING AVAILABLE. WITH CLR SKIES AND CALM WINDS AT THE ARPT AND THE 2 OTHER ANEMOMETERS RPTING 2 KTS OF WIND, THE BEST CHOICE TO EXPEDITE OUR ARR WAS THE RNAV XX. WE FIRST CHKED THE HILL WINDS PRIOR TO DEPARTING. MOUNTAIN WIND WAS 'NOT AVAILABLE' AT THAT TIME. I WAS CAUGHT IN THE FAMILIAR SIT AT JNU WHERE IT IS NOT UNCOMMON FOR ONE OF THE ANEMOMETER RPTS TO BE NOT AVAILABLE. I HAD FORGOTTEN THE NOTE THAT 'MOUNTAIN WIND MUST BE OPERATIVE' REGARDLESS OF THE WX. ON ARR, JNU OPS RPTED VIRTUALLY THE SAME WINDS WITH AGAIN WIND 'NOT AVAILABLE.' THE ARR WAS UNEVENTFUL. I ONLY BECAME AWARE OF OUR ERROR WHEN, AS I WAS SIGNING THE NEW RELEASE FOR THE LEG TO ZZZ1 AN AMENDED RELEASE WAS SENT FROM DISPATCH, DELETING RNAV AS A TKOF OPTION. THIS OCCURRED BECAUSE THE OPS AGENT HAD JUST CALLED DISPATCHER REMINDING THEM OF WIND CONDITIONS.
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.