Large transport taxies off runway edge, causes 2 flat tires.

Attributes
ACN	255404
Time
Date	199310
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	ground : holding ground other : taxi
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 3375 flight time type : 800
ASRS Report	255404
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	other Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were cleared onto hold by cvg tower. While taxiing from the hammerhead onto the runway, we heard and felt a thud. After being 'cleared for takeoff' the plane behind us advised us that we had a flat tire and possibly ran over some runway edge lights. We taxied clear and notified ramp/maintenance who later confirmed and repaired our 2 left main gear tires. When taxiing onto hold subsequently, we realized how narrow that taxiway is and that it is over a 90 degree turn. A heavy weight aircraft, eager to use all available runway, can easily drive off the edge due to its narrow, tight turn, as we did.

Original NASA ASRS Text

Title: LGT TAXIES OFF RWY EDGE, CAUSES 2 FLAT TIRES.

Narrative: WE WERE CLRED ONTO HOLD BY CVG TWR. WHILE TAXIING FROM THE HAMMERHEAD ONTO THE RWY, WE HEARD AND FELT A THUD. AFTER BEING 'CLRED FOR TKOF' THE PLANE BEHIND US ADVISED US THAT WE HAD A FLAT TIRE AND POSSIBLY RAN OVER SOME RWY EDGE LIGHTS. WE TAXIED CLR AND NOTIFIED RAMP/MAINT WHO LATER CONFIRMED AND REPAIRED OUR 2 L MAIN GEAR TIRES. WHEN TAXIING ONTO HOLD SUBSEQUENTLY, WE REALIZED HOW NARROW THAT TXWY IS AND THAT IT IS OVER A 90 DEG TURN. A HVY WT ACFT, EAGER TO USE ALL AVAILABLE RWY, CAN EASILY DRIVE OFF THE EDGE DUE TO ITS NARROW, TIGHT TURN, AS WE DID.

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.