Resilience and brittleness in the offshore helicopter transportation system: The identification of constraints and sacrifice decisions in pilots’ work

• Published in: Reliability engineering & system safety 2009-02, Vol.94 (2), p.311-319
• Main Authors: Gomes, Jose O., Woods, David D., Carvalho, Paulo V.R., Huber, Gilbert J., Borges, Marcos R.S.
• Format: Article
• Language: English
• Subjects: Applied sciences; Exact sciences and technology; Firm modelling; Offshore helicopter transportation; Operational research and scientific management; Operational research. Management science; Reliability theory. Replacement problems; Resilience engineering; Sacrifice decision; Safety
• ISSN: 0951-8320; 1879-0836
• DOI: 10.1016/j.ress.2008.03.026

Offshore transportation using helicopters is a complex socio-technical system. The resilience of this system is an emergent property related to performance variability in many nested levels, e.g. pilot activities, maintenance, management systems, helicopter design and so forth. This paper examines production/safety tradeoffs in pilots’ work in the helicopter transportation system for the Campos Basin oil fields in Brazil to understand the resilience and brittleness of this system. The study team carried out and analyzed 63 h of interviews with pilots, co-pilots, managers and human resources personnel of some of the main helicopter-operating companies. About 80% of the oil extracted in Brazil comes from this Basin, a 3 h drive north of Rio de Janeiro city. The oil company hires nine helicopter-operating companies to transport about 40,000 people who work on ships and platforms every month. The main goal of this project is to discover how the transport system is resilient and brittle, given the workload demands and economic pressures. The analysis uncovered goal conflicts that arise at the boundaries of the organizations and how people in different roles cope with these conflicts, and their implications to overall system safety and resilience.