Airworthiness Directive · Amendment 39-23056 · Aircraft fuel system
Cameron Balloons Ltd. Fuel Cylinders
Superseded. A later AD replaced this one: AD 2025-21-01. Comply with the one in force.
(1) This AD applies to all hot air balloons, certificated in any category, with a fuel cylinder installed that is fitted with Cameron Balloons Ltd. pressure relief valve (PRV) adaptor part number CB8426.
Note 1 to paragraph (c)(1): Cameron Balloons Alert Service Bulletin No. 36, Revision 1, dated April 2, 2025, provides information related to this AD, including fuel cylinders that may be fitted with PRV adaptor part number CB8426.
(2) These fuel cylinders are installed on hot air balloon models including, but not limited to, those of the design approval holders identified in paragraphs (c)(2)(i) through (viii) of this AD.
(i) Adams Aerostats LLC.
(ii) Aerostar International Inc.
(iii) Ballonbau Wörner GmbH.
(iv) Cameron Balloons Ltd.
(v) Eagle Balloons Corp.
(vi) JR Aerosports, Ltd.
(vii) Kubíček Factory s.r.o. (formerly Balóny Kubíček spol. s.r.o.).
(viii) Lindstrand Balloons Ltd.
The FAA is adopting a new airworthiness directive (AD) for Cameron Balloons Ltd. (Cameron) fuel cylinders fitted with certain pressure relief valve (PRV) adaptors on hot air balloons. This AD was prompted by the discovery of cracks on the upper hex portion of PRV adaptors. This AD requires repetitively visually checking the PRV adaptor for cracks and removing any fuel cylinder with a cracked PRV adaptor from service. The FAA is issuing this AD to address the unsafe condition on these products.
(1) Before further flight after the effective date of this AD, and thereafter before each flight, visually check the fuel cylinder PRV adaptor for any cracks.
(2) The owner/operator (pilot) holding at least a private pilot certificate may perform the visual checks required by paragraph (g)(1) of this AD and must enter compliance with the applicable paragraph of this AD into the balloon maintenance records in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439.
(3) If during any visual check required by paragraph (g)(1) of this AD, any fuel cylinder PRV adaptor is found with a crack, remove the fuel cylinder from service before further flight.
If a crack is found during any visual check required by paragraph (g)(1) of this AD, within 10 days after the check or within 10 days after the effective date of this AD, whichever occurs later, report the results to Cameron Balloons Ltd. at the address in paragraph (k)(2) of this AD. The report must include the check results, a description of any discrepancies found, the hot air balloon serial number, and the hours time-in-service for the PRV adaptor or the hot air balloon.
