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2. United Airlines Flight 1175 - Wikipedia

   en.wikipedia.org/wiki/United_Airlines_Flight_1175

   The other fan blade, which was identified as fan blade No. 10 and was the adjacent trailing blade, was fractured across the airfoil about 24 inches (61 cm) above the fairings. Laboratory examination of fan blade No. 11 revealed a low cycle fatigue (LCF) fracture that originated on the interior cavity wall directly below the surface. [3]

3. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   Domestic extractor fan: Wall- or ceiling-mounted, the domestic extractor fan is employed to remove moisture and stale air from domestic dwellings. Bathroom extractor fans typically utilize a four-inch (100 mm) impeller, while kitchen extractor fans typically use a six-inch (150 mm) impeller as the room is often bigger.

4. United Airlines Flight 328 - Wikipedia

   en.wikipedia.org/wiki/United_Airlines_Flight_328

   It was redesigned exclusively for the 777 with a larger 112-inch (280 cm) diameter fan section using 22 hollow-core fan blades. The PW4000-112 fan blade is a wide-chord airfoil made of a titanium alloy, about 40.5 inches (103 cm) long and about 22.25 inches (56.5 cm) wide at the blade tip. A PW4000-112 fan blade can weigh a maximum of 34.85 ...

5. CFM International CFM56 - Wikipedia

   en.wikipedia.org/wiki/CFM_International_CFM56

   The redesigned fan blades were installed on all CFM56-3C1 and CFM56-3B2 engines, including over 1,800 engines that had already been delivered to customers. [3] In August 2016 Southwest Airlines Flight 3472 suffered a fan blade failure, but landed later without further incident. While the aircraft sustained substantial damage, there were no ...

6. AOL Mail

   mail.aol.com/d?reason=invalid_cred

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Pratt & Whitney PW4000 - Wikipedia

   en.wikipedia.org/wiki/Pratt_&_Whitney_PW4000

   Routine fan blade inspection in 2005 and 2010 had shown a crack in the blade's metal structure but insufficiently trained inspectors had confused it for a defect in the paint. [15] [16] In 2019, an airworthiness directive mandated recurring engine inspections based on usage cycles. [17] 4 December 2020, Japan Airlines Flight 904