Airframe & System Upgrades

AS350 & H125
Sand Filter for Arriel 2D™ Engine
SB number : AS350-71-60-02 (R03)
Applicable to version(s) : B3
This upgrade, mandatory for flights under snowfall, is also used to filter efficiently sand or dust particles and provides a good ice protection. It protects the engine from the ingestion of sand.
It therefore prevents the premature wear of the compressor blades due to the ingestion of sand and other contaminants. In addition, the Sand filter installation also protect the air intake against the potential induction of flying particles.
Filtering reduces ingress of sand and dust, what enables to reduce premature engine ageing due to erosion. This installation also protects from absorption of sand and snow. Flights are prohibited under snowfall without the sand filter installed. The sand filter does not result in any loss of performance.
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+7.1 kg

+30.89 m.kg

3 day(s)

Benefits

  • Reduces engine premature ageing.
  • Protects against falling snow absorption.
  • Self-cleaning system.
  • Reduces direct maintenance cost.

PRE-POST REQUISITE / EFFECTIVITY

Applicable to AS350 B3 helicopters powered with an ARRIEL 2D engine with single or dual hydraulic system.

INSTALLATION TIME
QUALIFICATION INSTALLATION DURATION
Avionic, Electrical 4 Hour(s)
Airframe, Systems 16 Hour(s)
Pilot, Functional Check 2 Hour(s)
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Technical filtering assistant
CONFIGURATION MATRIX
CONFIGURATION PRE-POST MOD STATUS  
1 PRE MOD OP3346, POST MOD 074302, POST MOD OP2781, PRE MOD 074280, PRE MOD OP4303 This is my configuration
2 POST MOD OP2781, PRE MOD 074280, PRE MOD OP4303, POST MOD OP3346, POST MOD 074302 This is my configuration
3 POST MOD 074280, POST MOD 075606 or EASB No. 01.00.66, PRE MOD OP4303, PRE MOD 074659, PRE MOD OP3346, POST MOD 074302, PRE MOD 074291, POST MOD OP2781 This is my configuration
4 POST MOD 075606 or EASB No. 01.00.66, PRE MOD OP4303, PRE MOD 074659, POST MOD OP3346, POST MOD 074302, PRE MOD 074291, POST MOD OP2781, POST MOD 074280 This is my configuration

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