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GAA19CA405

2019-06-17 · Cobleskill, New York, United States · None · 1 aircraft · Status: Completed

Current FAA registration · N135WJ

Make / Model
EUROCOPTER DEUTSCHLAND GMBH EC 135 P2
Year of manufacture
2003 · 16 years old at event
Engine
P&W CANADA PW206B SERIES (431 hp)
Seats / Engines
7 seats · 2 engines
Last airworthiness date
20040206
ADS-B equipped
Yes — Mode-S A08FC1

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to maintain situational awareness during takeoff from a confined area, which resulted in the helicopter rotors striking tree branches.

Factual narrative

The operator of the helicopter reported that, during takeoff, the pilot allowed the helicopter to drift aft during a pedal turn. As the pilot performed a pedal turn, the main rotor blades struck tree branches that outlined the confined area of the landing zone. The remainder of the flight was completed without incident. Further inspection by the operator's maintenance personal identified two main rotor blades displayed damage at the tips, three fan-in-fin blades displayed bending, a crack in the vertical fin, puncture in the horizonal stabilizer and damage to the anti-torque gear box. The helicopter sustained substantial damage to the anti-torque gear box. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation. The helicopter operator reported that, during takeoff, the pilot allowed the helicopter to drift aft during a pedal turn, which resulted in the main rotor blades impacting tree branches that outlined the confined area of the landing zone. The pilot completed the remainder of the flight without incident. The helicopter sustained substantial damage to the antitorque gear box. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Personnel issues-Psychological-Attention/monitoring-Monitoring environment-Pilot - C
  • C Personnel issues-Psychological-Perception/orientation/illusion-Situational awareness-Pilot - C
  • C Environmental issues-Physical environment-Object/animal/substance-Tree(s)-Effect on operation - C

Verbatim from NTSB's published report. Source file NTSB_2019_GAA19CA405.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

Matched on aircraft type or causal vocabulary (maintenance). All research papers