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British Airways 5390

Printed page 35. PDF page 42.

Managers did not criticise the shift system, however the potential problems associated with sleep deprivation and circadian effects were acknowledged and various strategies were cited to cope with the situation. During the initial part of the investigation the Shift Maintenanc
Open official document at PDF page 42Aircraft Accident Report 1/92: BAC One-Eleven G-BJRT, 10 June 1990

British Airways 5390

Printed page 43. PDF page 50.

backstop with any chance of detecting his errors. Errors that were made more likely by the sleep deprivation and circadian effects associated with the end of a first night shift. Quality Assurance Application of Self Certification to Aircraft Engineering The
Open official document at PDF page 50Aircraft Accident Report 1/92: BAC One-Eleven G-BJRT, 10 June 1990

British Airways 5390

Printed page 53. PDF page 60.

backstop with any chance of detecting his errors. Errors that were made more likely by the sleep deprivation and circadian effects associated with the end of a first night shift. The practices employed by the Shift Maintenance Manager which permitted
Open official document at PDF page 60Aircraft Accident Report 1/92: BAC One-Eleven G-BJRT, 10 June 1990

British Airways 5390

Printed page F-2. PDF page 21.

when the mental resources required for such reassessment are limited by, for example, sleep deprivation or circadian (time of day) effects. The effects of time of day on many physiological and psychological variables are heavily researched, the results indicating that
Open official document at PDF page 21Aircraft Accident Report 1/92: Appendices A-F