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Atlas / NTSB / GAA16CA477

NTSB CAROL · Event

Event GAA16CA477

2016-09-09 Warrenton, Virginia, United States Airport · 7VG0 None 1 aircraft Status: Completed

Registry · N750SS

FAA Aircraft Registry record.

Make / Model

PACIFIC AEROSPACE CORP LTD 750XL

Year of manufacture

2005 · 11 years old at event

Engine

P&W PT6A SER (750 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20050309

ADS-B equipped

Yes — Mode-S AA1BAA

Registrant of record

PACAIR LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to set the wing flaps for takeoff, which resulted in an aerodynamic stall, an aborted takeoff, and a runway overrun.

Factual narrative

The pilot reported that this was his third skydiving flight of the day and he performed a back taxi on the runway for takeoff. He further reported that as he rotated the airplane for takeoff, he heard a "steady" stall warning horn, the flight controls felt mushy, and the airplane would not climb. The pilot reported that he aborted the takeoff and applied max braking and reverse thrust, but the airplane overran the runway remaining. Subsequently, the landing gear collapsed and the airplane collided with a fence. The left and right wing sustained substantial damage. After the accident, the pilot reported that he observed the wing flaps in the fully retracted position. He reported that the flaps should have been set to 20 degrees for takeoff. The pilot reported that he forgot to set the flaps during the back taxi for takeoff because he was communicating with other airplanes near the airport. The pilot reported that he did not use a physical checklist, but he did run through a checklist mentally. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot reported that this was his third skydiving flight of the day and he performed a back taxi on the runway for takeoff. He further reported that as he rotated the airplane for takeoff, he heard a "steady" stall warning horn, the flight controls felt mushy, and the airplane would not climb. The pilot reported that he aborted the takeoff and applied max braking and reverse thrust, but the airplane overran the runway remaining. Subsequently, the landing gear collapsed and the airplane collided with a fence.  The left and right wing sustained substantial damage.  After the accident, the pilot reported that he observed the wing flaps in the fully retracted position. He reported that the flaps should have been set to 20 degrees for takeoff. The pilot reported that he forgot to set the flaps during the back taxi for takeoff because he was communicating with other airplanes near the airport. The pilot reported that he did not use a physical checklist, but he did run through a checklist mentally.    The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Personnel issues-Action/decision-Action-Forgotten action/omission-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Aircraft capability-Takeoff distance-Not attained/maintained - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Configuration-Incorrect use/operation - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Capability exceeded - C
  • C Aircraft-Aircraft systems-Flight control system-TE flap control system-Not used/operated - C
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Capability exceeded
  • Environmental issues-Physical environment-Object/animal/substance-Fence/fence post-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2016_GAA16CA477.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗