Large transport attempting a 120 degree turn from taxiway W2 to taxiway M has 1 main gear stuck in t...

Attributes
ACN	250701
Time
Date	199308
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hou
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : fay
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
ASRS Report	250701
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi
Experience	flight time last 90 days : 120 flight time total : 5300 flight time type : 4000
ASRS Report	250420
Events
Anomaly	non adherence other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airport	other physical facility

Narrative:

While making the sharp turn (approximately 120 degrees) off taxiway W2 onto taxiway 'M' at hou, the left main landing gear barely left the taxiway and sank slightly into the mud preventing further taxi progress. Taxiway W-2 is new and turns onto a relatively narrow 'M' taxiway. There is a yellow line, but somehow I lost sight of it during the left turn. The only thing I can contribute to the cause is that I visually must have left the taxiway to reach for the antiskid switch as I was making the left turn, and misjudged the turning radius required for 120 degree back turn. There was no damage to the aircraft or injury to anyone except for my pride. Supplemental information from acn 250420: the left main gear went into the grass. This approximately 120 degree left turn on narrow txwys is very difficult to make. W2 is a new taxiway. Should have an easier corner.

Original NASA ASRS Text

Title: LGT ATTEMPTING A 120 DEG TURN FROM TXWY W2 TO TXWY M HAS 1 MAIN GEAR STUCK IN THE MUD.

Narrative: WHILE MAKING THE SHARP TURN (APPROX 120 DEGS) OFF TXWY W2 ONTO TXWY 'M' AT HOU, THE L MAIN LNDG GEAR BARELY LEFT THE TXWY AND SANK SLIGHTLY INTO THE MUD PREVENTING FURTHER TAXI PROGRESS. TXWY W-2 IS NEW AND TURNS ONTO A RELATIVELY NARROW 'M' TXWY. THERE IS A YELLOW LINE, BUT SOMEHOW I LOST SIGHT OF IT DURING THE L TURN. THE ONLY THING I CAN CONTRIBUTE TO THE CAUSE IS THAT I VISUALLY MUST HAVE LEFT THE TXWY TO REACH FOR THE ANTISKID SWITCH AS I WAS MAKING THE L TURN, AND MISJUDGED THE TURNING RADIUS REQUIRED FOR 120 DEG BACK TURN. THERE WAS NO DAMAGE TO THE ACFT OR INJURY TO ANYONE EXCEPT FOR MY PRIDE. SUPPLEMENTAL INFO FROM ACN 250420: THE L MAIN GEAR WENT INTO THE GRASS. THIS APPROX 120 DEG L TURN ON NARROW TXWYS IS VERY DIFFICULT TO MAKE. W2 IS A NEW TXWY. SHOULD HAVE AN EASIER CORNER.

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.

Large transport attempting a 120 degree turn from taxiway W2 to taxiway M has 1 main gear stuck in the mud.