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The aft pressure bulkhead is the white circular component; its web-like structure led a NASA technician to attach a large model spider to it for comedic effect. The aft pressure bulkhead or rear pressure bulkhead is the rear component of the pressure seal in all aircraft that cruise in a tropopause zone in the Earth's atmosphere. [ 1 ]
The upper skin of the tail had been blown outwards, strongly suggesting that difference in internal pressure from the aircraft had caused the separation of the components. [5] Reconstruction on the aircraft wreckage indicated that the rear pressure bulkhead had suffered a corrosion at the lower part of the bulkhead.
That means that the pressure is 10.9 pounds per square inch (75 kPa), which is the ambient pressure at 8,000 feet (2,400 m). Note that a lower cabin altitude is a higher pressure. The cabin pressure is controlled by a cabin pressure schedule, which associates each aircraft altitude with a cabin altitude.
Faulty repair after same plane suffered a tailstrike: the rear bulkhead failed which caused the tail fin to fall off and rupture all four hydraulic systems. The crash remains the deadliest single-aircraft accident in aviation history. 1987-11-28 South African Airways Flight 295: Indian Ocean, 134 nautical miles (248 km) north-east of Mauritius,
Engines in nacelles on a Boeing 707. A nacelle (/ n ə ˈ s ɛ l / nə-SEL) is a streamlined container for aircraft parts such as engines, fuel or equipment. [1] When attached entirely outside the airframe, it is sometimes called a pod, in which case it is attached with a pylon or strut and the engine is known as a podded engine. [2]
Of the 394 people on board, 25 sustained injuries, 23 minor and 2 serious. The tailstrike cracked open the aft pressure bulkhead. The damage was repaired by Boeing technicians, and the aircraft was returned to service. [5] [3] [6] The aircraft had flown for 8,830 hours at the time. [5]: 4
Torpedo bulkhead, a type of armor plate or protective covering designed to keep a ship afloat even if the hull is struck by a shell or by a torpedo; Bulkhead (barrier), a retaining wall used as a form of coastal management, akin to a seawall, or as a structural device such as a bulkhead partition
A typical metal spar in a general aviation aircraft usually consists of a sheet aluminium spar web, with L- or T-shaped spar caps being welded or riveted to the top and bottom of the sheet to prevent buckling under applied loads. Larger aircraft using this method of spar construction may have the spar caps sealed to provide integral fuel tanks.