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An large transport taxies for takeoff at uncontrolled airport, bzn, and fails to see a departing small aircraft towing a glider on a crossing runway.
| Attributes | |
| ACN | 412061 |
| Time | |
| Date | 199808 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bzn |
| State Reference | MT |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : cvg |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 13000 flight time type : 2800 |
| ASRS Report | 412061 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : ground critical incursion : runway |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact none taken : insufficient time |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Bzn gallatin airport, mt, is a CTAF controled airport. We announced our taxi and were told by CTAF gallatin unicom that runway 30 was the active runway. Our taxi route took us across a seldom used 90 degree intersecting runway (runway 3/21). The first officer had his head inside the cockpit receiving ATC clearance from ZLC. I visually cleared runway 3/21 xcockpit and did not see low profile departing towplane and glider until they were airborne and too late to stop our aircraft. I continued across runway 3/21. The glider released and landed safely. The towplane continued climb out and safely recovered on runway 21. Did not hear CTAF reporting runway 3/21 active. Did not hear towplane announce intentions (perhaps ATC clearance came over other radio at that time). Should have first officer clear runway also. Could not detect small, low profile aircraft approaching nearly head-on until I saw 'blue sky' behind them.
Original NASA ASRS Text
Title: AN LGT TAXIES FOR TKOF AT UNCTLED ARPT, BZN, AND FAILS TO SEE A DEPARTING SMA TOWING A GLIDER ON A XING RWY.
Narrative: BZN GALLATIN ARPT, MT, IS A CTAF CTLED ARPT. WE ANNOUNCED OUR TAXI AND WERE TOLD BY CTAF GALLATIN UNICOM THAT RWY 30 WAS THE ACTIVE RWY. OUR TAXI RTE TOOK US ACROSS A SELDOM USED 90 DEG INTERSECTING RWY (RWY 3/21). THE FO HAD HIS HEAD INSIDE THE COCKPIT RECEIVING ATC CLRNC FROM ZLC. I VISUALLY CLRED RWY 3/21 XCOCKPIT AND DID NOT SEE LOW PROFILE DEPARTING TOWPLANE AND GLIDER UNTIL THEY WERE AIRBORNE AND TOO LATE TO STOP OUR ACFT. I CONTINUED ACROSS RWY 3/21. THE GLIDER RELEASED AND LANDED SAFELY. THE TOWPLANE CONTINUED CLBOUT AND SAFELY RECOVERED ON RWY 21. DID NOT HEAR CTAF RPTING RWY 3/21 ACTIVE. DID NOT HEAR TOWPLANE ANNOUNCE INTENTIONS (PERHAPS ATC CLRNC CAME OVER OTHER RADIO AT THAT TIME). SHOULD HAVE FO CLR RWY ALSO. COULD NOT DETECT SMALL, LOW PROFILE ACFT APCHING NEARLY HEAD-ON UNTIL I SAW 'BLUE SKY' BEHIND THEM.
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.