Narrative:

With battery in the override position; APU door open; APU not running. Noticed white smoke followed by flames coming out of the [APU] tail pipe. APU fire bottle was discharged; did not extinguish flames. Fire dept. Shot dry chemicals followed by foam to extinguish flames. No fire warning in cockpit at any time.

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Original NASA ASRS Text

Title: Captain reported he was informed by a Ground Fueler during fueling operations that white smoke followed by flames were coming out of the APU tail pipe on their Gulfstream G-200 (Astra Galaxy) aircraft. The APU door was open; but the APU was not running. No Fire Warning in cockpit. Discharge of APU fire bottle did not extinguish flames.

Narrative: With battery in the override position; APU door open; APU not running. Noticed white smoke followed by flames coming out of the [APU] tail pipe. APU fire bottle was discharged; did not extinguish flames. Fire Dept. shot dry chemicals followed by foam to extinguish flames. No fire warning in cockpit at any time.

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.