A rigid item of various shapes permanently attached to a structure of an aircraft, designed to provide access for inspection, service, replacement of components and/or adjustments. It is designed to be attached by means of hinges or similar device. It may include self-closing features and have a quick release or other type latching to permit access with a minimum of effort. It may include an observation window. Excludes COVER, ACCESS; COVER ACCESS, AIRCRAFT; DOOR, ACCESS; DOOR, AIRCRAFT and all doors not specifically designed to provide access for the purposes listed above.