Narrative:

On landing at apf; I taxied to the FBO by mistake and while attempting to turn around I taxied the nose of the aircraft off a drainage culvert and into a drainage ditch.crew for the flight included myself - recently hired with the company; 72 hours of time in type and 72 hours of true captain experience. The first officer was also a recent hire with only 6 hours of total time in type and no prior jet experience. The medical crew included an experienced nurse and an experienced medic.just prior to departing fxe; a thunderstorm approached the field; delaying our departure by over 30 minutes. We departed fxe in wet but VFR conditions. While enroute to ZZZZ and after leveling off at FL410; I began to experience strong sinus cavity aches that only abated after we began descending for landing at ZZZZ.approach to landing at apf required a diversion around thunderstorms just south of the field and encroaching on final. We were able to see the airport beacon about 10 miles west of the field and were cleared for a visual approach and landed in VFR conditions. The [aircraft's] interior windows became foggy while approaching; limiting visibility and requiring an occasional wipe down with paper towels. This is common of [this aircraft] in hot humid conditions.after landing; I began taxiing the aircraft to the FBO. I had not been to apf before and was unfamiliar with the airfield. Miami center was not reachable on the ground; so the first officer called the flight service center hotline to cancel while we taxied. The FBO did not look open; so I pulled onto their ramp and stopped to call our company to find out where we needed to go. It was determined that we were supposed to be at the [airport terminal]. I surveyed the ramp and could not see any obstacles and initiated a u-turn to exit the ramp. Just prior to completing the turn; the nose wheel of the aircraft ran off the top of a drainage culvert and into a drainage ditch; bringing the aircraft to a stop.we set the parking brake; cut off the engines and myself on one of our medical crew exited to the aircraft to assess the damage. Determining that there were no leaks; we kept the crew and passengers on board until customs arrived and then the patient was offloaded by the medical crew. The aircraft sustained a large dent just behind the nose wheel and a radio antenna was knocked off the aircraft.

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Original NASA ASRS Text

Title: Air taxi Captain reported taxiing the nose gear of the aircraft into a drainage culvert.

Narrative: On landing at APF; I taxied to the FBO by mistake and while attempting to turn around I taxied the nose of the aircraft off a drainage culvert and into a drainage ditch.Crew for the flight included myself - recently hired with the company; 72 hours of time in type and 72 hours of true captain experience. The First Officer was also a recent hire with only 6 hours of total time in type and no prior jet experience. The medical crew included an experienced nurse and an experienced medic.Just prior to departing FXE; a thunderstorm approached the field; delaying our departure by over 30 minutes. We departed FXE in wet but VFR conditions. While enroute to ZZZZ and after leveling off at FL410; I began to experience strong sinus cavity aches that only abated after we began descending for landing at ZZZZ.Approach to landing at APF required a diversion around thunderstorms just south of the field and encroaching on final. We were able to see the airport beacon about 10 miles west of the field and were cleared for a visual approach and landed in VFR conditions. The [aircraft's] interior windows became foggy while approaching; limiting visibility and requiring an occasional wipe down with paper towels. This is common of [this aircraft] in hot humid conditions.After landing; I began taxiing the aircraft to the FBO. I had not been to APF before and was unfamiliar with the airfield. Miami Center was not reachable on the ground; so the First Officer called the Flight Service Center hotline to cancel while we taxied. The FBO did not look open; so I pulled onto their ramp and stopped to call our company to find out where we needed to go. It was determined that we were supposed to be at the [airport terminal]. I surveyed the ramp and could not see any obstacles and initiated a U-turn to exit the ramp. Just prior to completing the turn; the nose wheel of the aircraft ran off the top of a drainage culvert and into a drainage ditch; bringing the aircraft to a stop.We set the parking brake; cut off the engines and myself on one of our medical crew exited to the aircraft to assess the damage. Determining that there were no leaks; we kept the crew and passengers on board until Customs arrived and then the patient was offloaded by the medical crew. The aircraft sustained a large dent just behind the nose wheel and a radio antenna was knocked off the aircraft.

Data retrieved from NASA's ASRS site 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.