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Old 16th Dec 2022, 09:08
  #72 (permalink)  
BuzzBox
 
Join Date: Mar 2002
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Originally Posted by GBO
The Left Main AC Bus (ie power to SATCOM) may have been isolated automatically because of a fault caused by the oxygen bottle rupture...
Perhaps so, but the damage that caused the loss of power would still have been there when the crew completed the ELEC AC BUS L checklist. So how were they able to restore the power?

...the crew, who were overwhelmed by failures, have conducted the ELEC AC BUS L checklist or depowered/repowered the Left Main AC Bus in an attempt to restore lost systems.
Highly unlikely.

Without a L FMC, and no auto reversion to the R FMC, there is no active route, VNAV or Top Of Descent from IGARI to Penang.
Not until someone manually switches to the R FMC will a LNAV/VNAV route become possible.
This causes a software reset, which DELETES THE FLIGHT ID.
What makes you think there was no "auto reversion" to the R FMC? Are you basing this on the PMDG model or some other flight sim software? If so, it's wrong.



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