Flight crew of an small transport turboprop cpr aircraft taxied off the ramp and became stuck in the...

Attributes
ACN	258786
Time
Date	199312
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : h00
State Reference	AR
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 3800 flight time type : 1000
ASRS Report	258786
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	Pilot Deviation

Narrative:

While attempting a maneuver past 2 other aircraft that were improperly parked on a small ramp space, I elected to taxi the left main gear off the paved area onto what appeared to be solid ground. However, there was a sink hole/spring area that caused a hidden mud bog. We were stuck within 2 ft of taxiing, 8 inches off the paved ramp. A tractor pulled us out. Our newly revised SOP's policy will be 'no taxiing of aircraft on sod or grass, only on hard paved surfaces.' aircraft received no known or visible damage.

Original NASA ASRS Text

Title: FLC OF AN SMT TURBOPROP CPR ACFT TAXIED OFF THE RAMP AND BECAME STUCK IN THE MUD.

Narrative: WHILE ATTEMPTING A MANEUVER PAST 2 OTHER ACFT THAT WERE IMPROPERLY PARKED ON A SMALL RAMP SPACE, I ELECTED TO TAXI THE L MAIN GEAR OFF THE PAVED AREA ONTO WHAT APPEARED TO BE SOLID GND. HOWEVER, THERE WAS A SINK HOLE/SPRING AREA THAT CAUSED A HIDDEN MUD BOG. WE WERE STUCK WITHIN 2 FT OF TAXIING, 8 INCHES OFF THE PAVED RAMP. A TRACTOR PULLED US OUT. OUR NEWLY REVISED SOP'S POLICY WILL BE 'NO TAXIING OF ACFT ON SOD OR GRASS, ONLY ON HARD PAVED SURFACES.' ACFT RECEIVED NO KNOWN OR VISIBLE DAMAGE.

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.

Flight crew of an small transport turboprop cpr aircraft taxied off the ramp and became stuck in the mud.