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GAA19CA401

2019-07-10 · Vineyard Haven, Massachusetts, United States · None · 1 aircraft · Status: Completed

Airport MVY

Current FAA registration · N677DM

Make / Model
CESSNA 172S
Year of manufacture
2004 · 15 years old at event
Engine
LYCOMING IO-360-L2A (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
20040629
ADS-B equipped
Yes — Mode-S A8F610

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to maintain lateral position in relation to the instrument approach course at night in instrument meteorological conditions, which resulted in collision with a tree.

Factual narrative

The pilot reported that, while conducting the instrument landing system (ILS) 24 approach at night in instrument meteorological conditions, while correcting course on the ILS, she saw full right deflection, corrected to the left, and then observed full left deflection on the course direction indicator (CDI) at about the decision altitude. She then heard and felt a loud "bang." The airplane turned left, she aborted the approach, executed the missed approach, and declared an emergency. She was then vectored to a nearby airport where she landed without further incident. An examination by the Federal Aviation Administration inspector revealed pine needles in the damaged section of the airplane's left wing. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport's automated weather observation station reported that, about the time of the accident, the wind was from 220° at 5 knots, visibility one-quarter statute miles, runway visual range 1,800 ft variable 2,200 ft, cloud condition fog, vertical visibility 200 ft, temperature 21°C (70°F), dew point 21°C (70°F), altimeter setting 30.01" Hg. The airplane was landing runway 24. The pilot reported that, while conducting an instrument landing system (ILS) approach at night in instrument meteorological conditions and while correcting course on the ILS, she saw full right deflection, corrected to the left, and then observed full left deflection on the course direction indicator about the decision altitude. She added that she then heard and felt a loud "bang." The airplane turned left, she aborted the approach, executed a missed approach, and declared an emergency. She was then vectored to a nearby airport where she landed the airplane without further incident. The airplane sustained substantial damage to the left wing. An examination by the Federal Aviation Administration inspector revealed pine needles in the damaged section of the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport's automated weather observation station reported that, about the time of the accident, the wind was from 220° at 5 knots, visibility 1/4 statute mile, runway visual range 1,800 ft, variable 2,200 ft, cloud condition fog, vertical visibility 200 ft, temperature 21°C (70°F), dew point 21°C (70°F), and altimeter setting 30.01 inches of mercury. The pilot was landing the airplane on runway 24. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Descent/approach/glide path-Not attained/maintained - C
  • C Personnel issues-Task performance-Use of equip/info-Use of equip/system-Pilot - C
  • — Environmental issues-Physical environment-Object/animal/substance-Tree(s)-Effect on operation
  • — Environmental issues-Conditions/weather/phenomena-Ceiling/visibility/precip-Low visibility-Effect on personnel
  • — Environmental issues-Conditions/weather/phenomena-Light condition-Dark-Effect on personnel

Verbatim from NTSB's published report. Source file NTSB_2019_GAA19CA401.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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