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Last updated: 19 September 2021
Statuts:Enquête Officielle
Date:mercredi 29 juillet 1998
Heure:ca 13:30
Type/Sous-type:Silhouette image of generic E110 model; specific model in this crash may look slightly different
Embraer EMB-110P1 Bandeirante
Compagnie:Selva Taxi Aéreo
Immatriculation: PT-LGN
Numéro de série: 110343
Année de Fabrication: 1982
Moteurs: 2 Pratt & Whitney Canada PT6A-34
Equipage:victimes: / à bord: 2
Passagers:victimes: / à bord: 25
Total:victimes: 12 / à bord: 27
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:100 km (62.5 milles) W of Manaus, AM (   Brésil)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Manaus-Eduardo Gomes International Airport, AM (MAO/SBEG), Brésil
Aéroport de destination:Tefé Airport, AM (TFF/SBTF), Brésil
The EMB-110 Bandeirante operated on a domestic flight from Manaus to Tefé, Brazil. Although the airplane was certificated for a maximum of 19 passengers, there were 25 passengers on board. Also, for financial reasons the crew decided to take more fuel than necessary for this flight. This resulted in the airplane departing with an excess of weight of 852 kg. About 20 minutes into the flight the oil pressure of the no. 2 engine dropped. The crew reduced engine power to 72% and continued to Tefé. When the flight was 185 km from Manaus at FL85 the oil pressure dropped to 40psi and the TGT increased. The copilot shut down the engine and the captain turned the airplane around, back to Manaus. At 13:15 the crew contacted Manaus ACC reporting that they were returning on one engine. The overloaded airplane flying on one engine, began to lose height. During the descent the speed was kept around 105 kts which occasionally caused activated stick shaker. To lose weight, the left overwing exit was opened and luggage of the passengers was jettisoned. The airplane did not make it to Manaus and an emergency landing on the Manacapuru River was made. The Bandeirante landed hard on the water, causing an opening in the fuselage. It sank quickly.

Probable Cause:

CONCLUSION (translated from Portuguese):
Human Factor - Psychological Aspect - Contributed
There was the participation of psychological variables, at the individual and organizational levels, which interfered in the performance and decisions of the crew.

Material Factor - Undetermined
It was not possible to examine the debris of the aircraft to determine the contribution of this factor to the failure of the left engine.

Operational Factor
(1) Deficient Maintenance - Undetermined
It is possible that the failure to carry out a type B2 inspection and/or to carry out a type A1 inspection by an unqualified person may have contributed to the occurrence of a low oil pressure emergency, due to material deterioration or inadequate services.
The impossibility of examining the aircraft could not determine this aspect.
(2) Deficient Supervision - Contributed
The owner of the air taxi company participated due to lack of adequate supervision in the planning of operations, at the technical, operational and administrative levels. This deficiency can be characterized, among other things, by the owner of the company that allowed the aircraft to fly with the type B2 inspection expired; by the excessive amount of fuel, when refueling in Manaus; by the unreasonable number of people on board, causing the aircraft to fly with excess weight, and still, by the receipt of pilots' salary to be conditioned to the accomplishment of the fateful flight.
(3) Deficient Cabin Coordination - Contributed
Errors were made by the aircraft crew due to the improper use of the resources available in the cabin, intended for the operation of the aircraft, due to non-compliance with operational rules.
(4) Deficient Planning - Contributed to
There was a mistake made by the crew due to the inadequate preparation for the flight, assuming numerous failures, such as: the nonconference, by the pilots, of the cargo and passengers manifest; the lack of the realization of a briefing and still, to accept an aircraft for a flight, being the same with its inspection not carried out.
(5) Deficient Judgment - Contributed
An error was made by the crew due to inadequate evaluation of certain aspects of the flight. Such deficiency was evidenced when the first sign of failure of the lubrication system occurred, after twenty minutes of flight, and even so, they decided to proceed with the flight, when the most sensible and safe would be the return, immediately, to Manaus.
(6) Disabled Support Staff - Contributed
The airline's support staff participated in the planning of weight and balance of the aircraft and the number of passengers on board, providing incorrect information to the aircraft's crew members. In addition, the mechanic who performed the A1 type inspection was not qualified for the function.
(7) Flight Discipline - Contributed
There has been intentional non-compliance by the crew members with the operational rules established by the aircraft manufacturer.
(8) Other Operational Aspects - Contributed
The Commander did not foresee what was predictable, for lack of caution, thus intentionally increasing the risk margin of the mission.

» CENIPA - Centro de Investigação e Prevenção de Acidentes Aeronáuticos


photo of Embraer-110P1-Bandeirante-HK-2639
accident date: 29-07-1998
type: Embraer 110P1 Bandeirante
registration: HK-2639

Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Manaus-Eduardo Gomes International Airport, AM et Tefé Airport, AM est de 518 km (324 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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