|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : bos|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Controlling Facilities||tower : txk|
|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 : instrument|
pilot : flight engineer
pilot : commercial
|Experience||flight time last 90 days : 255|
flight time total : 12000
flight time type : 4500
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Anomaly||other anomaly other|
other anomaly other
|Independent Detector||other flight crewa|
|Consequence||faa : reviewed incident with flight crew|
|Air Traffic Incident||other|
|Airport||procedure or policy : unspecified|
Boston's logan airport is very conscientious in their taxi instructions, always requesting acknowledgements in their hold short instructions. This is all very commendable. However, they then take one giant step backwards in the area of unauthorized runway incursions. They do this by means of a very inefficient snow removal program. Today, 4 days after a foot of snow hit boston, we were instructed to taxi to runway 9 via the outer taxiway and to hold short of runway 4L. As we neared a point which we perceived to be runway 4L we realized that almost all visual cues were obliterated by snow. The taxiway (painted) markings as well as the runway 4L sideline a markings were under snow. In addition, the multiple sign posts for runway 4L were all above the snow bank, but the snow removal equipment had pushed up a drift so that they were unrecognizable. 5 mins with a shovel on these signs could have changed an unsafe hold short environment to a safe one.
Original NASA ASRS Text
Title: HOLD SHORT SIGNS OBSCURED BY SNOW PILED UP DURING SNOW REMOVAL.
Narrative: BOSTON'S LOGAN ARPT IS VERY CONSCIENTIOUS IN THEIR TAXI INSTRUCTIONS, ALWAYS REQUESTING ACKNOWLEDGEMENTS IN THEIR HOLD SHORT INSTRUCTIONS. THIS IS ALL VERY COMMENDABLE. HOWEVER, THEY THEN TAKE ONE GIANT STEP BACKWARDS IN THE AREA OF UNAUTH RWY INCURSIONS. THEY DO THIS BY MEANS OF A VERY INEFFICIENT SNOW REMOVAL PROGRAM. TODAY, 4 DAYS AFTER A FOOT OF SNOW HIT BOSTON, WE WERE INSTRUCTED TO TAXI TO RWY 9 VIA THE OUTER TXWY AND TO HOLD SHORT OF RWY 4L. AS WE NEARED A POINT WHICH WE PERCEIVED TO BE RWY 4L WE REALIZED THAT ALMOST ALL VISUAL CUES WERE OBLITERATED BY SNOW. THE TXWY (PAINTED) MARKINGS AS WELL AS THE RWY 4L SIDELINE A MARKINGS WERE UNDER SNOW. IN ADDITION, THE MULTIPLE SIGN POSTS FOR RWY 4L WERE ALL ABOVE THE SNOW BANK, BUT THE SNOW REMOVAL EQUIP HAD PUSHED UP A DRIFT SO THAT THEY WERE UNRECOGNIZABLE. 5 MINS WITH A SHOVEL ON THESE SIGNS COULD HAVE CHANGED AN UNSAFE HOLD SHORT ENVIRONMENT TO A SAFE ONE.
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.