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Illustrated technical information covering Vol 2 Over 800 multi-choice systems questions Study notes and technical information Close up photos of internal and external components A compilation of links to major 737 news stories with a downloadable archive Illustrated history and description of all variants of 737 Detailed tech specs of every series of 737 Databases and reports of all the major 737 accidents & incidents General flightdeck views of each generation of 737's Description & news reports of Advanced Blended Winglets Press reports of orders and deliveries A collection of my favourite photographs that I have taken of or from the 737 Details about 737 production methods A compilation of links to other sites with useful 737 content Get the book of the website 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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*** Updated 16 Sep 2016 ***

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