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Atlas / NTSB / GAA18CA407

NTSB CAROL · Event

Event GAA18CA407

2018-07-01 Mackinac Island, Michigan, United States Airport · MCD None 1 aircraft Status: Completed

Registry · N66568

FAA Aircraft Registry record.

Make / Model

BEECH 58TC

Engine

CONT MOTOR TSIO-520 SER (300 hp)

Seats / Engines

6 seats · 2 engines

Last airworthiness date

19790815

ADS-B equipped

Yes — Mode-S A8CA17

Registrant of record

TRAPP AVIATION LTD

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to remove the pitot tube cover during the preflight inspection, which resulted in his delayed decision to reject the takeoff with insufficient runway remaining to safely stop the airplane.

Factual narrative

The pilot of the twin-engine airplane reported that during the takeoff roll on the 3,500-foot runway the airplane's airspeed indicator did not indicate an airspeed, so he rejected the takeoff. He added that, he attempted to brake, but "full braking [was] not initially possible due to lift". Subsequently, the airplane overran the runway onto a downhill grass area and struck a wood fence. During a post-accident inspection the pilot discovered that the pitot tube cover had not been removed before the flight. According to the manufacturer, the typical takeoff roll is approximately 1,336 feet and the approximate landing roll is 1,440 feet. The airplane sustained substantial damage to both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot added that his preflight memory list was: fuel, oil, tires, props, and surfaces. He will now add, "chocks, cowl plugs, pitot tube covers". The pilot of the twin-engine airplane reported that, during the takeoff roll on the 3,500-ft-long runway, the airspeed indicator did not indicate an airspeed, so he rejected the takeoff. He added that he attempted to brake, but "full braking [was] not initially possible due to lift." Subsequently, the airplane overran the runway onto a downhill grassy area and struck a fence. During postaccident examination of the airplane, the pilot found that the pitot tube cover had not been removed before the flight. According to the manufacturer, the typical takeoff roll is about 1,336 ft, and the approximate landing roll is 1,440 ft. If the pilot had rejected the takeoff sooner, he likely could have stopped the airplane on the runway. The airplane sustained substantial damage to both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot added that his preflight memory list was: fuel, oil, tires, props, and surfaces and that he will now add "chocks, cowl plugs, pitot tube covers." 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-Task performance-Inspection-Preflight inspection-Pilot - C
  • C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
  • C Personnel issues-Action/decision-Action-Lack of action-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Aircraft capability-Landing distance-Capability exceeded - C
  • C Aircraft-Aircraft systems-Pneumatic system-Pneumatic indicating system-Inadequate inspection - C
  • Environmental issues-Physical environment-Object/animal/substance-Fence/fence post-Contributed to outcome
  • Environmental issues-Physical environment-Terrain-Sloped/uneven terrain-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2018_GAA18CA407.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. 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 ↗