EASA SIB 2012-01: WITHDRAWNÂ - REPLACED BY EASA AD 2013-0281R1

What to do

Operators and owners should review their helicopters for any position strobe light installations with power supply units and wiring in the baggage compartment. They should verify that these systems are adequately protected against damage and that maintenance instructions address possible degradation. If protection is insufficient, stakeholders are advised to contact the Supplemental Type Certificate holder or design owner for guidance and notify EASA. Additionally, all applicable regulations regarding the transport of flammable substances must be strictly observed.

Summary

EASA Safety Information Bulletin 2012-01 is an informational bulletin addressing a potential unsafe condition related to the optional position strobe light installation (modification OP0811) on Eurocopter AS 350 and AS 355 helicopters. The issue involves the power supply unit and electrical wiring located in the baggage compartment, which could cause electrical sparks and potentially lead to fire if damaged and in contact with flammable substances. This bulletin informs operators and owners about the safety concern and recommends precautionary measures.

What changed

This bulletin republishes the original information to correct the referenced Emergency Airworthiness Directive number. It highlights the identified risk associated with the position strobe light installation in the baggage compartment and advises on interim safety actions pending a modification from Eurocopter to resolve the issue. It also extends the advisory to similar installations that may exist via Supplemental Type Certificates.

Why it matters

The bulletin is important for aviation professionals because it identifies a fire hazard risk in certain Eurocopter AS 350 and AS 355 helicopters due to electrical components located in the baggage compartment. Operators and maintenance teams need to be aware of this risk to prevent potential uncontrolled fires, ensure compliance with safety regulations, and maintain airworthiness. It also emphasizes the need to manage flammable substances carefully in the baggage compartment.