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Atlas / NTSB / GAA17CA443

NTSB CAROL · Event

Event GAA17CA443

2017-07-23 Berlin, Maryland, United States Airport · 4MD1 Minor 1 aircraft Status: Completed

Registry · N48519

FAA Aircraft Registry record.

Make / Model

GRUMMAN ACFT ENG COR-SCHWEIZER G-164B

Year of manufacture

1976 · 41 years old at event

Engine

P&W R-985 SERIES (450 hp)

Seats / Engines

1 seats · 1 engine

Last airworthiness date

19760429

ADS-B equipped

Yes — Mode-S A5FDC9

Registrant of record

BUNTINGS DUSTING INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The ground crewman’s failure to visually check the runway before crossing it in a vehicle, which resulted in he and the vehicle being struck by the landing airplane.

Factual narrative

The pilot reported that he noticed that a spray nozzle was leaking on the agricultural spray airplane. Subsequently, he performed multiple test flights over a nearby field while the head of the ground crew remained on the ground to monitor the leak. He added that he would land the airplane on the grass airstrip, adjust the nozzle, depart for another visual check, and repeat as necessary. Following the tests and adjustments, the ground personnel told the pilot that the nozzle was not leaking and the pilot returned to land. The pilot reported that, during the landing roll, he did not see the ground personnel visually check the runway before crossing the runway on an all-terrain vehicle (ATV) in front of the airplane. He added that he immediately veered the airplane to the right and sped up to avoid striking the ground personnel with the propeller. The left wing struck the ATV and the ground personnel. The airplane sustained substantial damage to the left wing leading edge and the ground personnel received minor injuries. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that he noticed that a spray nozzle was leaking on the agricultural spray airplane. Subsequently, he performed multiple test flights over a nearby field while the head of the ground crew remained on the ground to monitor the leak. He added that he landed the airplane on the grass airstrip, adjusted the nozzle, departed for another visual check, and repeated as necessary. Following the tests and adjustments, the ground crewman told the pilot that the nozzle was not leaking, and the pilot returned to land. The pilot reported that, during the landing roll, he did not see the ground crewman visually check the runway before crossing the runway in front of the airplane in an all-terrain vehicle (ATV). He added that he immediately veered the airplane to the right and sped up to avoid striking the ground crewman with the propeller. However, the left wing struck the ATV and the ground crewman. The airplane sustained substantial damage to the left wing leading edge, and the ground crewman sustained minor injuries. The pilot reported that there were no preaccident mechanical failures or malfunctions 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-Psychological-Attention/monitoring-Monitoring environment-Ground crew - C
  • C Personnel issues-Action/decision-Action-Forgotten action/omission-Ground crew - C
  • C Environmental issues-Physical environment-Object/animal/substance-Person-Effect on operation - C
  • C Environmental issues-Physical environment-Object/animal/substance-Ground vehicle-Effect on operation - C

Verbatim from NTSB's published report. Source file NTSB_2017_GAA17CA443.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.