A taxiing MD88 crosses runways 9 and 4L on the taxi out, expecting runway 4L at bos, ma.

Attributes
ACN	460895
Time
Date	200001
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 12000
ASRS Report	460895
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 3500 flight time type : 1000
ASRS Report	460899
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance Airport
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Pushback clearance was requested from ZBW and received. Also, a request was made for runway 4R or runway 4L instead of runway 9 due to weight considerations. ZBW advised to expect runway 4R. After pushback from gate, taxi instructions were requested and received from ground control. We were instructed to taxi via taxiway a, taxiway C, give way to an inbound air carrier aircraft, taxiway K, taxiway B. We proceeded as directed. There was some confusion on our part as to when to contact the tower controller. When contact was made the tower advised us we had crossed runway 4L without clearance. There was no conflict with any other aircraft and the controller did not seem upset with our actions. The rest of the takeoff and departure was uneventful. There was a distraction that could have contributed to our missing the taxiway B hold point, where runways 9 and 4L intersect. A B747 was parked immediately next to taxiway B with extremely bright lights illuminating the aircraft. The lights positioned behind the B747 pointing forward shined very brightly on our aircraft and made visibility outside the cockpit difficult for a few moments, possibly causing us to miss the taxiway B hold point signage.

Original NASA ASRS Text

Title: A TAXIING MD88 CROSSES RWYS 9 AND 4L ON THE TAXI OUT, EXPECTING RWY 4L AT BOS, MA.

Narrative: PUSHBACK CLRNC WAS REQUESTED FROM ZBW AND RECEIVED. ALSO, A REQUEST WAS MADE FOR RWY 4R OR RWY 4L INSTEAD OF RWY 9 DUE TO WT CONSIDERATIONS. ZBW ADVISED TO EXPECT RWY 4R. AFTER PUSHBACK FROM GATE, TAXI INSTRUCTIONS WERE REQUESTED AND RECEIVED FROM GND CTL. WE WERE INSTRUCTED TO TAXI VIA TXWY A, TXWY C, GIVE WAY TO AN INBOUND ACR ACFT, TXWY K, TXWY B. WE PROCEEDED AS DIRECTED. THERE WAS SOME CONFUSION ON OUR PART AS TO WHEN TO CONTACT THE TWR CTLR. WHEN CONTACT WAS MADE THE TWR ADVISED US WE HAD CROSSED RWY 4L WITHOUT CLRNC. THERE WAS NO CONFLICT WITH ANY OTHER ACFT AND THE CTLR DID NOT SEEM UPSET WITH OUR ACTIONS. THE REST OF THE TKOF AND DEP WAS UNEVENTFUL. THERE WAS A DISTR THAT COULD HAVE CONTRIBUTED TO OUR MISSING THE TXWY B HOLD POINT, WHERE RWYS 9 AND 4L INTERSECT. A B747 WAS PARKED IMMEDIATELY NEXT TO TXWY B WITH EXTREMELY BRIGHT LIGHTS ILLUMINATING THE ACFT. THE LIGHTS POSITIONED BEHIND THE B747 POINTING FORWARD SHINED VERY BRIGHTLY ON OUR ACFT AND MADE VISIBILITY OUTSIDE THE COCKPIT DIFFICULT FOR A FEW MOMENTS, POSSIBLY CAUSING US TO MISS THE TXWY B HOLD POINT SIGNAGE.

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.