AD 79-10-01 ACTIVE

79-10-01 BELL: Amendment 39-3456. Applies to Models 206A series and 206B series helicopters certificated in all categories, with an Alaskan Sky-Craft external load carrying device and Bell pop-out float landing gear installed in accordance with Supplemental Type Certificate (STC) SH515AL, SH474AL, or SH3090AL.

Compliance is required as indicated, unless already accomplished.

To prevent possible puncturing of the Bell pop-out floats, (P/N 206-706-010), by Alaskan Sky-Craft (ASC) external load carrying devices, accomplish the following:

(a) Within the next 10 hours time in service after the effective date of this AD, either -

(1) Remove the ASC external load carrying device and the ASC Flight Manual Supplement from the Rotorcraft Flight Manual; or

(2) Remove the Bell pop-out floats (P/N 206-706-010), install the Bell high skid landing gear (P/N 206-706-031), and replace the applicable ASC Rotorcraft Flight Manual Supplement with the appropriate supplement, all in accordance with ASC Service Bulletin No. 2 dated November 28, 1978 (hereinafter referred to as the Service Bulletin), or an FAA-approved equivalent.

(b) After compliance with paragraph (a)(2) of this AD, before further flight with an ASC external load carrying device installed, ensure that the external load carrying device is installed in accordance with STC SH515AL, as amended May 2, 1978, STC SH309AL, as amended May 8, 1978, or STC SH474AL, as amended May 8, 1978, as appropriate.

NOTE: The appropriate revised ASC drawing which is part of the amended STC is referenced in paragraph A.(3), B.(3), or C.(3) of the Service Bulletin.

This amendment becomes effective May 14, 1979.