4 ms·
The risk wasn't identified in the first place. Remember that the updated MCAS was itself a mitigation.
by metalliqaz 7y ago
The risk wasn't identified in the first place. Remember that the updated MCAS was itself a mitigation.
- bumby 7y agoThe risk of MCAS was identified in the system safety analysis (SSA), but they didn't appear to do a thorough job (in hindsight, at least). The biggest mistake to me seems to be the erroneous severity attribute: > Assessed a failure of the system as one level below “catastrophic.” But even that “hazardous” danger level should have precluded activation of the system based on input from a single sensor — and yet that’s how it was designed.[0] [0] https://www.seattletimes.com/business/boeing-aerospace/failed-certification-faa-missed-safety-issues-in-the-737-max-system-implicated-in-the-lion-air-crash/ https://www.seattletimes.com/business/boeing-aerospace/faile...