tech records, but also management of the crisis as a whole : list of passengers, assistance to passengers/families, communication with media, wrekage recovery, etc.... this plan is part of the IOSA standards manual (
IATA Operational Safety Audit (IOSA) to be downloaded here :
http://www.iata.org/NR/rdonlyres/6E4...Ed2Rev1TR1.pdf page 233 of the PDF document)