2024-05 · NASA ASRS report 2115352
First Officer reported a taxiway excursion resulted after following the appropriate yellow taxi line while making a turn from B to A taxiways at GKY airport.
Landed GKY Rwy 16 after conducting visual (RNAV Assisted) approach at XB:34 Z (weather conditions auto generated @ XA:53 Z wind 170/07; vis 10SM; BKN 4300; OVC 5500; 26C/19C; A2974). After normal landing Rwy 16; aircraft slowed to taxi speed with left turn initiated on taxiway B which was communicated to TWR and GND control. While on taxiway B further instruction to taxi 'B; A to the ramp' was received. Whilst on taxiway B and following yellow taxi line; left turn was initiated on taxiway A northbound. Pilot Monitoring (PM) had concluded 'after landing' checklist with APU started.Making left turn northbound on taxiway A; left main landing gear departed hard surface and entered grass area; sinking into mud. Total fuel on board was 6400 pounds on landing and 6000 pounds after excursion on engine shutdown.PM requested assistance from GND Control (no emergency declared) and additional discrete frequency was offered in order to communicate with ground vehicles. Frequency was distorted and garbled and communications reestablished with GND Control. Engines were subsequently shutdown at XB:42 Z and passengers disembarked via main entrance door without further incident. Park brake was set at XB:42 Z.Subsequent verbal conversation with GKY airport revealed this type of incident/ excursion has happened several times in the recent past.
After landing at GKY on RWY16 at XB:34 Z (fuel 6400 lbs); we exited left onto taxiway B was transferred to GND frequency and was giving taxi instructions to turn left onto A taxiway. Following yellow line on the taxi way my left main gear departed the pavement on the corner. I immediately shut my main engines down; my APU was already running. I then went back to address the passengers to explain what just happened. We then made sure we could opened the main cabin door safety; and all the PAX and they luggage were then taken to the FBO.Person A spoke with me and informed me that we were multiple aircraft this year that has an taxiway excursion at GKY. He then inquired if the Tower had instructed me to turn right on taxiway G; which I said to him they did not issue such an instruction. Because Taxiway G is much wider.The APU was then shut down; and the main doors closed.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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