4 ms·
"the plane’s power control units could shut down power generators if they were powered without interruption for 248 days, or about eight months." This magic nu
by Scaevolus 12y ago
"the plane’s power control units could shut down power generators if they were powered without interruption for 248 days, or about eight months."
This magic number suggests an int32 overflow: 2^31 centiseconds = 248.56 days
- hakanderyal 12y ago"Each generator is linked to a control unit. Boeing found that if the four engine generators were left on continuously for about eight months, a software internal counter would overflow and cause the control units to enter a fail-safe mode."