A B727 captain performs an illegal taxi at btv airport when she uses taxiway K which was restr for aircraft over 68200 pounds. Crew had briefed this at the ramp but forgot during taxi out when performing their checklists.

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Attributes
ACN	388800
Time
Date	199712
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : btv
State Reference	VT
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Controlling Facilities	tower : det
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 140 flight time total : 14000 flight time type : 140
ASRS Report	388800
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	controller : radar pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi
Experience	controller radar : 4 controller supervisory : 1 flight time last 90 days : 200 flight time total : 10000 flight time type : 3000
ASRS Report	389257
Events
Anomaly	non adherence : clearance non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : became reoriented flight crew : exited adverse environment
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airport	procedure or policy : unspecified

Narrative:

After engine start, cleared to taxi to runway 33 for takeoff on btv. Short taxi to runway. As we were running the before takeoff checklist I glanced down at taxi chart to check entryway for runway for full length takeoff since we were just under maximum runway takeoff weight. As I turned onto taxiway K, I saw the note down below that said, 'restr to aircraft under 68200 pounds.' we kept rolling and were cleared for takeoff. If the airport chart was tailored to our aircraft there could have been XXX's across the taxiway, it would have been more clear that it was not a usable taxiway, since none of our aircraft are under 68200 pounds. We had briefed the note during the takeoff briefing, but overlooked it while taxiing and running checklist. If unusable txwys were XXX'ed out, it would be more obvious at a quick glance which txwys are unusable.

Original NASA ASRS Text

Title: A B727 CAPT PERFORMS AN ILLEGAL TAXI AT BTV ARPT WHEN SHE USES TXWY K WHICH WAS RESTR FOR ACFT OVER 68200 LBS. CREW HAD BRIEFED THIS AT THE RAMP BUT FORGOT DURING TAXI OUT WHEN PERFORMING THEIR CHKLISTS.

Narrative: AFTER ENG START, CLRED TO TAXI TO RWY 33 FOR TKOF ON BTV. SHORT TAXI TO RWY. AS WE WERE RUNNING THE BEFORE TKOF CHKLIST I GLANCED DOWN AT TAXI CHART TO CHK ENTRYWAY FOR RWY FOR FULL LENGTH TKOF SINCE WE WERE JUST UNDER MAX RWY TKOF WT. AS I TURNED ONTO TXWY K, I SAW THE NOTE DOWN BELOW THAT SAID, 'RESTR TO ACFT UNDER 68200 LBS.' WE KEPT ROLLING AND WERE CLRED FOR TKOF. IF THE ARPT CHART WAS TAILORED TO OUR ACFT THERE COULD HAVE BEEN XXX'S ACROSS THE TXWY, IT WOULD HAVE BEEN MORE CLR THAT IT WAS NOT A USABLE TXWY, SINCE NONE OF OUR ACFT ARE UNDER 68200 LBS. WE HAD BRIEFED THE NOTE DURING THE TKOF BRIEFING, BUT OVERLOOKED IT WHILE TAXIING AND RUNNING CHKLIST. IF UNUSABLE TXWYS WERE XXX'ED OUT, IT WOULD BE MORE OBVIOUS AT A QUICK GLANCE WHICH TXWYS ARE UNUSABLE.

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.