When I was referring to quality parts, I meant in the sense that they are not always subject to the lowest quote selection criteria, but represent best value (taking whole life costs and frequency of failure) and avoiding potential lower specification standards ( often blamed on the accountants) when in practise its often also poor/lazy engineering.
A good example of poor specification engineering standards and potentially lax parts quality control is the Mercedes SLK rear subframes that are having to be replaced under the 30 year corrosion warranty, as the subframes are rusting from the inside out, due to inadequate treatment of the metal cavity inside the subframe. A change in engineering and quality standards came about during the period of the Chrysler and Benz tie up, which is impacting Mercedes cars of that period.
Having worked in the airline industry, and know the paper trail that follows parts and the engineering records maintained for all components ,from flying hours to number of rotations etc I do find it amazing that rogue parts can enter the system, but sourcing used parts and using spares stockists to keep costs down can leave the backdoor open to abuse.
Last edited by JohnHarris; 30/12/23 03:54 PM.