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Last updated: 14 November 2018
Status:Schlussbericht
Datum:Montag 16 Juli 2007
Zeit:12:42
Flugzeugtyp:Silhouette image of generic AT43 model; specific model in this crash may look slightly different
ATR 42-300
Fluggesellschaft:Pantanal Linhas Aéreas Sul-Matogrossenses
Kennzeichen: PT-MFK
Werknummer: 225
Baujahr: 1991
Triebwerk: 2 Pratt & Whitney Canada PW120
Besatzung:Todesopfer: 0 / Insassen: 4
Fluggäste:Todesopfer: 0 / Insassen: 21
Gesamt:Todesopfer: 0 / Insassen: 25
Sachschaden: schwer beschädigt
Konsequenzen: Written off (damaged beyond repair)
Unfallort:São Paulo-Congonhas Airport, SP (CGH) (   Brasilien)
Flugphase: Landung (LDG)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Bauru Airport, SP (BAU/SBBU), Brasilien
Flug nach:São Paulo-Congonhas Airport, SP (CGH/SBSP), Brasilien
Flugnummer:4763
Unfallbericht:
The ATR-42 landed at Congonhas Airport (CGH) runway 17R. During rollout the aircraft began to veer to one side. Control was not regained and the airplane ran off the runway onto rough ground. After leaving the runway the aircraft's undercarriage dug into soft ground and then struck a link taxiway where the nose undercarriage collapsed.

Probable Cause:

CONTRIBUTING FACTORS (translated from Portuguese report)
Operational Aspect
a. Weather conditions - Contributed
A light rain caused the presence of water on the runway, enabling the occurrence of hydroplaning.
b. Infrastructure - Contributed
The accumulation of water on the surface of the runway, as a result of inadequate drainage, lack of "grooving", enabled the hydroplaning.
c. Education - Contributed
The pilot applied full pressure on the right pedal, generating a force to the left that contributed to the departure off the runway.
During hydroplaning, the pilot should not apply pedal to the opposite side to which the aircraft slides; this fact was not covered during the instruction of the pilot.
d. Application of command - Contributed
In the face of hydroplaning, the pilot applied the right pedal, aggravating the departure of the aircraft to the left.

Accident investigation:
cover
Investigating agency: CENIPA
Status: Investigation completed
Duration: 267 days (9 months)
Accident number: A-005/CENIPA/2008
Download report: Final report


Sicherheitsempfehlungen

CENIPA issued 22 Safety Recommendations

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photo of ATR-42-300 PT-MFK
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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Bauru Airport, SP to São Paulo-Congonhas Airport, SP as the crow flies is 283 km (177 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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