|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : cho|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Controlling Facilities||artcc : cho|
|Operator||common carrier : air carrier|
|Make Model Name||Medium Large Transport, Low Wing, 2 Turbojet Eng|
|Flight Phase||ground : holding|
ground other : taxi
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 150|
flight time total : 6200
flight time type : 1400
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
We were cleared to taxi runway 21. We understood (captain and myself) this to mean taxi to the departure end of #21 since no 'hold short' instructions were given. Several small aircraft were departing from an intersection ahead of our craft so we waited on the parallel taxiway until our turn to move along. Since we didn't want an intersection departure we continued along the parallel as cleared, so we thought. Tower advised two landing aircraft to go-around because we had violated the 'airport safety zone.' we also received a stern lecture that we were to hold at the painted 'hold' line and not to taxi to the end until cleared by tower. There is in fact a 'hold' line painted on the parallel taxiway. We understood this line to represent that threshold for an intersection departure. Airmen information manual is specific in that this line separates an active taxiway from an active runway, not dividing a taxiway. Also we could find no reference anywhere on our charts, in the far's, or in the aim to the 'airport safety zone'. I had been there before and I did know of the 'hold line'. However, previously I had always been told to 'hold short at the the hold line' and we did. On this particular instance we were cleared to 'taxi to runway 21', a different clearance altogether. I recommend this airport safety zone be depicted on our charts with a caution notation to draw ones attention to an unusual situation. Also ATC needs to advise controllers to state clearly what they want us to do, not assume we know what they are thinking.
Original NASA ASRS Text
Title: ACR MLG CLEARED TO RWY 21 CROSSED HOLD LINE RESULTING IN TWO GO AROUNDS CAUSED BY APPARENT TRANSGRESSION.
Narrative: WE WERE CLRED TO TAXI RWY 21. WE UNDERSTOOD (CAPT AND MYSELF) THIS TO MEAN TAXI TO THE DEP END OF #21 SINCE NO 'HOLD SHORT' INSTRUCTIONS WERE GIVEN. SEVERAL SMALL ACFT WERE DEPARTING FROM AN INTERSECTION AHEAD OF OUR CRAFT SO WE WAITED ON THE PARALLEL TAXIWAY UNTIL OUR TURN TO MOVE ALONG. SINCE WE DIDN'T WANT AN INTERSECTION DEP WE CONTINUED ALONG THE PARALLEL AS CLRED, SO WE THOUGHT. TWR ADVISED TWO LANDING ACFT TO GO-AROUND BECAUSE WE HAD VIOLATED THE 'ARPT SAFETY ZONE.' WE ALSO RECEIVED A STERN LECTURE THAT WE WERE TO HOLD AT THE PAINTED 'HOLD' LINE AND NOT TO TAXI TO THE END UNTIL CLRED BY TWR. THERE IS IN FACT A 'HOLD' LINE PAINTED ON THE PARALLEL TAXIWAY. WE UNDERSTOOD THIS LINE TO REPRESENT THAT THRESHOLD FOR AN INTERSECTION DEP. AIRMEN INFORMATION MANUAL IS SPECIFIC IN THAT THIS LINE SEPARATES AN ACTIVE TAXIWAY FROM AN ACTIVE RWY, NOT DIVIDING A TAXIWAY. ALSO WE COULD FIND NO REFERENCE ANYWHERE ON OUR CHARTS, IN THE FAR'S, OR IN THE AIM TO THE 'ARPT SAFETY ZONE'. I HAD BEEN THERE BEFORE AND I DID KNOW OF THE 'HOLD LINE'. HOWEVER, PREVIOUSLY I HAD ALWAYS BEEN TOLD TO 'HOLD SHORT AT THE THE HOLD LINE' AND WE DID. ON THIS PARTICULAR INSTANCE WE WERE CLRED TO 'TAXI TO RWY 21', A DIFFERENT CLRNC ALTOGETHER. I RECOMMEND THIS ARPT SAFETY ZONE BE DEPICTED ON OUR CHARTS WITH A CAUTION NOTATION TO DRAW ONES ATTN TO AN UNUSUAL SITUATION. ALSO ATC NEEDS TO ADVISE CTLRS TO STATE CLEARLY WHAT THEY WANT US TO DO, NOT ASSUME WE KNOW WHAT THEY ARE THINKING.
Data retrieved from NASA's ASRS site as of August 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.