Eurcopter EC 135

Ouverture de ce sujet à l'occasion de la livraison au ministère de la santé polonais du premier EC 135 d'une commande de 23. En remplacement des Mil Mi 2.

L'EC 135 est assez utilisé dans les missions d'évactuations médicalisées

Sur Avionews

Warsaw, Poland - Within the end of 2010 Poland will have one of the most modern network of Hems

(WAPA) - The Polish Ministry of Health took delivery today in Warsaw of the first of 23 EC-135 helicopters ordered from Eurocopter in June 2008. The new fleet will be assigned to the country’s nationwide Emergency Medical Services (EMS) network.
This on-timedelivery represents a major step in Poland’s efforts to modernize its Helicopter Emergency Medical Services (HEMS), as the country will be operating the world’s most popular new-generation EMS helicopter.

The new helicopter, scheduled to enter into service at the beginning of January 2010, will be based in Warsaw.
Five more EC-135s are slated for delivery in 2009, with the remaining 17 to follow in 2010. The fleet will be spread around all 17 Polish bases, and will be flown by the Warsaw-based Polish operator Lotnicze Pogotowie Ratunkowe
(LPR).
The new EC-135s, which will replace the existing fleet of Mi-2s, will bring Poland up to date with the latest European standards.

Technical support for LPR’s EC-135s will be provided by the Warsaw-based company Heli Invest – a Eurocopter Distributor and Certified Maintenance Center that offers a full range of customer services, including a hotline with
Polish-speaking operators available 24/7, full maintenance services and technical support at all bases throughout the country.
(Avionews)

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Bonjour, chers tous.
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EASA orders urgent checks for EC135 rotor hub cracks

By: David Learmount London
01:07 18 May 2012
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The European Aviation Safety Agency issued an emergency airworthiness directive on 17 May relating to Eurocopter EC135 helicopters after a crack was detected on the lower hub-shaft flange of a main rotor hub shaft. The cause of the cracking has not been determined yet.

C'est la "root cause" qui est recherchée, bien évidemment !

This, says EASA, could lead to further crack propagation "possibly resulting in main rotor hub failure and consequent loss of the helicopter".

Absolument !

The agency had issued a previous directive on EC135 helicopter drive system cracking, but since then "further cracks have been detected on the lower hub shaft flange of two other helicopters during accomplishment of the pre-flight checks".

A noter.

It adds: "It has been determined that the identification of deformed safety pins may not be sufficient to detect the cracks on the (main rotor hub) shaft."

On ne rigole pas !

EASA requires, for EC135 and EC635 series helicopters, repetitive pre-flight visual inspections of the main rotor blades attachment area in the upper and lower hub-shaft flanges, as well as repetitive visual inspection on the upper and lower hub-shaft flanges and the blade bolt area.

Initial inspections must be carried out within three days of the directive. After that, the flight time between any two pre-flight inspections must not exceed 6h.

C'est très sérieux, donc !

Once initial inspections have been carried out, the accumulation by a main rotor hub of 400h since since its first installation on a helicopter should trigger further a further checking regime, and if cracks are found the hub should be replaced.

A noter !

This warning about Eurocopter drive train cracking comes in the wake of a successful controlled ditching on 10 May of a Bond Helicopters Eurocopter EC225 (G-REDW). The crew ditched the helicopter off Aberdeen when gearbox oil pressure dropped because of a failure in the oil pump drive.

Il était, donc, impératif de faire le "controlled ditching". Il n'y avait aucune solution alternative. L'opération fut brillamment réussie par l'équipage !

Use of flotation devices when the aircraft was set down on the water enabled the helicopter and all on board to be recovered.

Oui.

An exhaustive inquiry by the UK Air Accidents Investigation Branch is still continuing into the sudden catastrophic failure of the epicyclic gearbox module in a Bond Eurocopter AS332L2 Super Puma (G-REDL) in April 2009, in which all 16 people on board died when the rotor completely separated.

Oui ! Et le rapport, comme d'habitude, sera de la plus haute facture . Jusqu'à sa publication, il faut que les amateurs (que nous sommes) se taisent et patientent. Les Agités de Service, aussi !