|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1801 To 2400|
|Locale Reference||airport : den|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Operator||common carrier : air taxi|
|Make Model Name||Small Transport, Low Wing, 2 Recip Eng|
|Flight Phase||ground other : taxi|
|Affiliation||company : air taxi|
|Function||flight crew : single pilot|
|Qualification||pilot : instrument|
pilot : commercial
|Experience||flight time last 90 days : 90|
flight time total : 2760
flight time type : 1300
|Affiliation||government : faa|
|Function||controller : ground|
|Qualification||controller : non radar|
|Anomaly||other anomaly other|
|Independent Detector||other flight crewa|
|Resolutory Action||none taken : unable|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
I was repositioning the airplane from the hangar to the cargo area to be loaded for a cargo flight. I was instructed to taxi up zulu taxiway at den to zulu 3. I was cleared to cross 17R, which was in use for landing traffic, on zulu 3 and enter the cargo area on lima 7. All the pavement was wet from the rain which had ceased a little earlier. Zulu 3 becomes lima 6 on the west side of 17R, but it also has about a 45 degree turn to the left because lima 6 is a high speed exit from 17R to lima taxiway. I was taxiing west looking into the lights from the cargo area with the reflection from the wet pavement. Beyond lima (to the west) lima 6 is in line with zulu 3. As I was taxiing across 17R I was looking to the far side of lima along lima 6. Because O had not jogged 45 degrees left I suddenly became aware I was in the grass. I was sensitive to the fact that aircraft were being sequenced to land on 17R with aircraft on final, so I responded by applying power to go through the grass strip between 17R and lima toward lima six. The ground was wet from the rain from the day and bottom of the grass strip was soft so that the nose wheel sunk and broke the nose gear, the main gear sunk in the mud and the propellers/engines had sudden stoppage under power with the propellers being totaled and the engines suspect at best. The airport operations manager contacted FSDO who said they did not have to investigate because it was not related to flight, nor to mechanical failure.
Original NASA ASRS Text
Title: CROSSING ACTIVE RWY AS CLEARED, LOOKING FOR TURN ONTO CORRECT TXWY. NOSE WHEEL GOES OFF RWY INTO VERY WET GRASS. POWERS UP TO GET OUT. NOSE GEAR COLLAPSES, MAIN SINKS INTO MUD.
Narrative: I WAS REPOSITIONING THE AIRPLANE FROM THE HANGAR TO THE CARGO AREA TO BE LOADED FOR A CARGO FLT. I WAS INSTRUCTED TO TAXI UP ZULU TXWY AT DEN TO ZULU 3. I WAS CLRED TO CROSS 17R, WHICH WAS IN USE FOR LNDG TFC, ON ZULU 3 AND ENTER THE CARGO AREA ON LIMA 7. ALL THE PAVEMENT WAS WET FROM THE RAIN WHICH HAD CEASED A LITTLE EARLIER. ZULU 3 BECOMES LIMA 6 ON THE W SIDE OF 17R, BUT IT ALSO HAS ABOUT A 45 DEG TURN TO THE LEFT BECAUSE LIMA 6 IS A HIGH SPD EXIT FROM 17R TO LIMA TXWY. I WAS TAXIING W LOOKING INTO THE LIGHTS FROM THE CARGO AREA WITH THE REFLECTION FROM THE WET PAVEMENT. BEYOND LIMA (TO THE W) LIMA 6 IS IN LINE WITH ZULU 3. AS I WAS TAXIING ACROSS 17R I WAS LOOKING TO THE FAR SIDE OF LIMA ALONG LIMA 6. BECAUSE O HAD NOT JOGGED 45 DEGS LEFT I SUDDENLY BECAME AWARE I WAS IN THE GRASS. I WAS SENSITIVE TO THE FACT THAT ACFT WERE BEING SEQUENCED TO LAND ON 17R WITH ACFT ON FINAL, SO I RESPONDED BY APPLYING PWR TO GO THROUGH THE GRASS STRIP BTWN 17R AND LIMA TOWARD LIMA SIX. THE GND WAS WET FROM THE RAIN FROM THE DAY AND BOTTOM OF THE GRASS STRIP WAS SOFT SO THAT THE NOSE WHEEL SUNK AND BROKE THE NOSE GEAR, THE MAIN GEAR SUNK IN THE MUD AND THE PROPS/ENGS HAD SUDDEN STOPPAGE UNDER PWR WITH THE PROPS BEING TOTALED AND THE ENGS SUSPECT AT BEST. THE ARPT OPS MGR CONTACTED FSDO WHO SAID THEY DID NOT HAVE TO INVESTIGATE BECAUSE IT WAS NOT RELATED TO FLT, NOR TO MECHANICAL FAILURE.
Data retrieved from NASA's ASRS site as of August 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.