1.   Cecilia attributed the Marks to some kind of metal fatigue or rust.

2.   It is not just artistic ephemera which suffer from metal fatigue in the heat of ubiquitous exposure.

3.   Metal fatigue has to be one of the worst things that can happen.

4.   The cracks in the engine were caused by metal fatigue.

5.   Airlines regularly take planes out of service to perform ultrasonic tests for metal fatigue or wear and tear on composite materials made of fibers and glue.

6.   Broken metal sometimes speaks loudest of all, a lexicon of metal fatigue, stress, microscopic imperfections and hairline fractures.

7.   Chief William Jones of the citywide command said there were several reasons why a ladder might fail, including the angle, excessive weight and metal fatigue.

8.   Composite materials are strong, lightweight, impervious to corrosion and metal fatigue, and increasingly popular with airplane designers.

9.   Kelly said the cracks were caused by metal fatigue, meaning that the metal had been bent too often or too severely or both.

10.   Miele also questioned Sunday whether a test for metal fatigue could have prevented the accident.