<< >> NASA ASRS Report 764207, November 2007

CRJ700 flight crew described ground conflict when ATC issued runway crossing clearance and flight crew was unable to clear runway because of taxiway traffic; resulting in go around.

Attributes
ACN	764207
Time
Date	200711
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Regional Jet 700 ER&LR
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
Experience	flight time last 90 days : 140 flight time total : 9600 flight time type : 1200
ASRS Report	764207
Person 2
Affiliation	company : air carrier
Experience	flight time last 90 days : 100 flight time total : 5500 flight time type : 3000
ASRS Report	764210
Events
Anomaly	conflict : ground less severe
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

Where this took place is depicted on navigation chart for bos hot spot area HS3. We were on taxiway K behind an airbus holding short of runway 4L. There was a twin cessna holding short of runway 4L on taxiway east. The airbus was cleared to cross and then the twin was cleared to cross and fall in behind the airbus now on taxiway M. We were then cleared to cross 'without delay and follow the twin cessna. Twin cessna on 2 mi final.' once we started across; I saw there was no way to clear runway 4L because of the crowd on taxiway M. When we were cleared to cross we were also instructed to change to frequency 132.22. That frequency was as crowded as the txwys! When we finally got a chance to advise we were not clear of the runway; the twin cessna on final to runway 4L was going around. We eventually were able to clear the runway.

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Original NASA ASRS Text

Title: CRJ700 FLT CREW DESCRIBED GND CONFLICT WHEN ATC ISSUED RWY CROSSING CLRNC AND FLT CREW WAS UNABLE TO CLR RWY BECAUSE OF TXWY TFC; RESULTING IN GAR.

Narrative: WHERE THIS TOOK PLACE IS DEPICTED ON NAV CHART FOR BOS HOT SPOT AREA HS3. WE WERE ON TXWY K BEHIND AN AIRBUS HOLDING SHORT OF RWY 4L. THERE WAS A TWIN CESSNA HOLDING SHORT OF RWY 4L ON TXWY E. THE AIRBUS WAS CLRED TO CROSS AND THEN THE TWIN WAS CLRED TO CROSS AND FALL IN BEHIND THE AIRBUS NOW ON TXWY M. WE WERE THEN CLRED TO CROSS 'WITHOUT DELAY AND FOLLOW THE TWIN CESSNA. TWIN CESSNA ON 2 MI FINAL.' ONCE WE STARTED ACROSS; I SAW THERE WAS NO WAY TO CLR RWY 4L BECAUSE OF THE CROWD ON TXWY M. WHEN WE WERE CLRED TO CROSS WE WERE ALSO INSTRUCTED TO CHANGE TO FREQ 132.22. THAT FREQ WAS AS CROWDED AS THE TXWYS! WHEN WE FINALLY GOT A CHANCE TO ADVISE WE WERE NOT CLR OF THE RWY; THE TWIN CESSNA ON FINAL TO RWY 4L WAS GOING AROUND. WE EVENTUALLY WERE ABLE TO CLR THE RWY.

Data retrieved from NASA's ASRS site as of January 2009 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.