While cotton, from the cotton plant, and linen, from the flax plant, are both natural plant fibers (cellulose), there are many differences between them. The term Linens can colloquially refer to any household good, but this should not be confused with linen fabric.
In Part 830, the NTSB defines an accident as: 1  an occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight and when all such passengers have disembarked, 2  in which any person suffers death or serious injury,
Note 2.-- An aircraft is considered to be missing when the official search has been terminated and the wreckage has not been located. Incident. An occurrence, other than an accident, associated with the operation of an aircraft which affects or could affect the safety of operation. There are indeed only two 'official' classifications of aviation incidents, which are defined in ICAO Annex 13. Accident.