Pilot Debrief

RAYTHEON AIRCRAFT COMPANY 390 near Naples, FL — 2021-09-03

Final reportERA21LA350
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Date
2021-09-03
Location
Naples, FL, USA
Airport
APF
Aircraft
RAYTHEON AIRCRAFT COMPANY 390
Registration
N351CW
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Landing

Probable cause

The pilot was unable to stop the airplane during the landing for reasons which could not be determined, resulting in a runway excursion.

NTSB narrative

The pilot stated that the flight was uneventful. During landing, he applied normal braking and the airplane started to slow down. Suddenly the brakes “faded away,” and he was unable to stop the airplane. He further described that he applied full braking pressure and the pedals were operating as they should, but the airplane was not stopping. He added that every few feet the brakes would grab, lock-up for a few feet, and then release. The brakes grabbed several times during the landing roll but were not slowing the airplane down. The airplane overran the end of the runway, and the pilot steered the airplane into the grass and away from a jet blast fence. The anti-skid box, brake valve, anti-skid valve, and both wheel speed transducers were removed and sent to the manufacturer for bench testing. All the components passed the bench tests, and no anomalies were noted. The airplane was not equipped with a flight data recorder. According to automatic dependent surveillance broadcast (ADS-B) data, the airplane landed about 8 knots higher than the Vref speed of 110 knots, with about 4,500 ft of runway remaining. According to the airplane flight manual, the airplane required about 3,000 ft for landing. Based on the available evidence, the reason that the pilot was unable to stop the airplane on the runway could not be determined.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Pilot could have chosen to abort landing due to high approach speed.

NTSB coding

Evidence available

  • CVR
  • ADS-B / radar
  • Photos
  • 16 docket documents
View NTSB final reportView NTSB docket

Docket documents16

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