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Published: 2 February 2018
Effective: 2 February 2018

ATA Chapter: 28

Subject:

This Continuing Airworthiness Notice (CAN) is prompted by the latest revision of Robinson Helicopter Company (RHC) R22 Service Bulletin SB-109A “Bladder Fuel Tank Retrofit” dated 15 January 2018. The intent of the CAN is to ensure that all operators/maint

Applicability:

All Robinson R22 helicopters fitted with aluminium fuel tanks.

Applicability:

All Robinson R22 helicopters fitted with aluminium fuel tanks.

Purpose:

This Continuing Airworthiness Notice (CAN) is prompted by the latest revision of Robinson Helicopter Company (RHC) R22 Service Bulletin SB-109A “Bladder Fuel Tank Retrofit” dated 15 January 2018.

The intent of the CAN is to ensure that all operators/maintainers of Robinson R22 helicopters are aware of RHC SB-109A pertaining to bladder fuel tanks.

Background:

RHC SB-109A requires operators/maintainers of Robinson R22 helicopters to embody bladder-type fuel tanks to improve the fuel system’s resistance to a post-accident fuel leak.

The fuel system design features introduced by RHC SB-109A on Robinson R22 helicopters increase the level of safety in the event of a survivable crash by either decreasing the likelihood, or delaying the onset of a post-crash fire. The improved features minimize crash-induced fuel leaks and their contact with potential fuel ignition sources, both during and after the crash, and increase the time occupants have available to egress before a post-crash fire could become critical.

RHC require compliance with SB-109A as soon as practical, but no later than next 2200-hour overhaul, 12 year inspection, or 15 January 2020, whichever occurs first.  The SB provides information on a discount kit and a rebate available by way of incentive to accomplish the SB.

Recommendation:

The CAA strongly recommends that all operators/maintainers of Robinson R22 helicopters comply with the requirements in RHC SB-109A, dated 15 January 2018.

Reference Documentation:

· ATSB Occurrence Investigation 200000125(external link).

· FAA SAIB SW-17-31(external link) Fuel System.

· CASA AWB 28-017(external link) issue 1 – 1 February 2018 Robinson R22 Fuel Tanks.

· Robinson Helicopter Company SB-109A, dated 15 January 2018.

Enquiries:

All other enquires regarding this CAN should be made to:

Owen Olls

Airworthiness Specialist

Email: owen.olls@caa.govt.nz

Phone: 04 560 9569