Airworthiness Directive · Amendment 39-9453 · Royal Inventum Company DR1 and DR6 Series Galley Water Heaters
Royal Inventum Company DR1 and DR6 Series Galley Water Heaters
Royal Inventum Company DR1 and DR6 series galley water heaters, installed on but not limited to Boeing 727, 737, 747, 757 and 767 series, McDonnell Douglas DC-9 series; and Fokker F.28 series (except Mk. 0100) aircraft. Note: This AD applies to each water heater identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For water heaters that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (b) to request approval from the FAA. This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any water heater from the applicability of this AD.
This amendment adopts a new airworthiness directive (AD), applicable to Royal Inventum Company DR1 and DR6 Series Galley Water Heaters, that requires the installation of a pressure relief valve, and 3-phase safety devices on each Royal Inventum Company DR1 and DR6 series galley water heater. This amendment is prompted by a report of a Royal Inventum DR6 water heater explosion during an overheat test at a maintenance facility. The actions specified by this AD are intended to prevent explosions of Royal Inventum Company DR1 and DR6 series galley water heaters, which could cause personal injury or galley damage to the aircraft.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Appliances and equipment
