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Illustrated technical information covering Vol 2 Over 800 multi-choice systems questions Close up photos of internal and external components Illustrated history and description of all variants of 737 Databases and reports of all the major 737 accidents & incidents History and Development of the Boeing 737 - MAX General flightdeck views of each generation of 737's Technical presentations of 737 systems by Chris Brady Detailed tech specs of every series of 737 A collection of my favourite photographs that I have taken of or from the 737 Press reports of orders and deliveries Details about 737 production methods A compilation of links to other sites with useful 737 content Study notes and technical information A compilation of links to major 737 news stories with a downloadable archive A quick concise overview of the pages on this site


When these pins (Two on each brake unit ie eight in total) become flush with brake housing, the brakes are ready for replacement. Bring to the attention of an engineer before dispatch.

Data suggests that the average wear rate is 0.001 per landing. This should mean that if a pin were only 0.01" proud, it should still be good for another 10 landings.

If observed downroute then it may be comforting to know that when any pin is flush, the associated brake unit still has enough capacity for an RTO - by law.

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All of the information, photographs & schematics from this website and much more is now available in a 374 page printed book or in electronic format.

*** Updated 14 Nov 2021 ***

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