What it does
This instrument, labelled AD/BAL/13 Amdt 1 (16/2010), mandates the installation of a portable fire extinguisher on all hot air balloons. The core, operative requirement in the text is: install, if not already accomplished, a dry powder type or a BCF vapourising‑liquid type portable fire extinguisher of at least 1 kg capacity, complying with Australian Standard AS 1841 or equivalent (Requirement: "If not already accomplished install a dry powder type or a BCF vaporising‑liquid type portable fire extinguisher of at least 1 kg capacity, complying with Australian Standard AS 1841 or equivalent."). The table explicitly states "Applicability: All Hot Air Balloons."
The instrument sets timing for compliance as "Before issue of a certificate of airworthiness or before 10 May 1995." It also records that "This Amendment becomes effective on 6 August 2010." The background text explains the safety rationale: a fire extinguisher is considered an essential safety item in the event of a gas leak with the burner alight (Background: "A fire extinguisher is considered an essential safety item in a hot air balloon in the event of a gas leak with the burner alight.").
Mechanically, the amendment removes certain maintenance requirements from the Airworthiness Directive on the basis that they duplicated Maintenance regulation requirements, and redirects maintenance obligations to the regulatory definitions and maintenance scheduling regime described in the Civil Aviation Regulations: CAR 2 defines a Fire Extinguisher as an aircraft component, CAR 41(2) requires the balloon maintenance schedule to include provision for maintenance of all aircraft components, and CAR 2A defines what can constitute Approved Maintenance Data (Background: "This amendment removes the maintenance requirements for the Airworthiness Directive as it is duplicative to the Maintenance regulation requirements. CAR 2 defines a Fire Extinguisher is an aircraft component. CAR 41(2) requires the Balloon maintenance schedule to include provision for the maintenance of all aircraft components. CAR 2A defines what can constitute Approved Maintenance Data. CASA recommends the Fire Extinguisher Manufacturer’s Maintenance and Overhaul requirements be nominated as the approved maintenance data for the Fire Extinguisher. The requirements for installation of a Fire Extinguisher remain unchanged.").