|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : zzz.airport|
|Altitude||agl single value : 0|
|Controlling Facilities||artcc : zlc.artcc|
|Operator||common carrier : air carrier|
|Make Model Name||B747-400|
|Operating Under FAR Part||Part 121|
|Flight Phase||ground : taxi|
|Affiliation||company : air carrier|
|Function||maintenance : technician|
|Qualification||technician : powerplant|
technician : airframe
|Experience||maintenance technician : 8|
|Affiliation||government : faa|
|Function||controller : ground|
|Anomaly||incursion : runway|
non adherence : clearance
|Independent Detector||other other : 1|
|Resolutory Action||none taken : detected after the fact|
|Problem Areas||Environmental Factor|
Maintenance Human Performance
|Primary Problem||Maintenance Human Performance|
We had a 747-400 engine change (#4 engine). For the engine run, we needed a run up pad. Tower gave us 3 run up. I called for clearance and the tower said take (from hangar) taxiway zulu hold short 21R victor, and we did. Then given instruction cross 21R join yankee, tango to 3R run up pad, so we proceeded. Most of this is usually done at night (I work midnights). This was done during the daylight hours. While looking for 3R run up pad/taxiway whiskey (which is off tango), we found ourselves getting very close to runway 3R. Seeing this, I looked quickly left then right to verify no incoming traffic. There wasn't any and we crossed. That is where the mistake was made. Crossing an active runway with out clrncs. I myself have been to 3R run up pad many times in the past. All of which was at night. I have become very familiar with the lights out there at night. So during the day it changed things just enough for this to happen.
Original NASA ASRS Text
Title: MAINT CROSSES RWY ENRTE TO ENG TEST POS ON ARPT.
Narrative: WE HAD A 747-400 ENG CHANGE (#4 ENG). FOR THE ENG RUN, WE NEEDED A RUN UP PAD. TWR GAVE US 3 RUN UP. I CALLED FOR CLRNC AND THE TWR SAID TAKE (FROM HANGAR) TXWY ZULU HOLD SHORT 21R VICTOR, AND WE DID. THEN GIVEN INSTRUCTION CROSS 21R JOIN YANKEE, TANGO TO 3R RUN UP PAD, SO WE PROCEEDED. MOST OF THIS IS USUALLY DONE AT NIGHT (I WORK MIDNIGHTS). THIS WAS DONE DURING THE DAYLIGHT HOURS. WHILE LOOKING FOR 3R RUN UP PAD/TXWY WHISKEY (WHICH IS OFF TANGO), WE FOUND OURSELVES GETTING VERY CLOSE TO RWY 3R. SEEING THIS, I LOOKED QUICKLY LEFT THEN RIGHT TO VERIFY NO INCOMING TFC. THERE WASN'T ANY AND WE CROSSED. THAT IS WHERE THE MISTAKE WAS MADE. CROSSING AN ACTIVE RWY WITH OUT CLRNCS. I MYSELF HAVE BEEN TO 3R RUN UP PAD MANY TIMES IN THE PAST. ALL OF WHICH WAS AT NIGHT. I HAVE BECOME VERY FAMILIAR WITH THE LIGHTS OUT THERE AT NIGHT. SO DURING THE DAY IT CHANGED THINGS JUST ENOUGH FOR THIS TO HAPPEN.
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.