This discussion of unreliable Captain's instruments, possibly badly diagnosed and rectified, reminds me of the crash of a Korean 747-200F near Stansted airport in the UK in 1999.
AAIB Report 3/2003
Notably elements:
Carrier from a place with high authority gradients - no arguing with the Captain and his instruments,
Disorganised troubleshooting and rectification of the reported defect,
Airline with poor maintenance and operations reputation (at the time, KAL's rep was not good),
Failure to follow QRH procedure and use good CRM to resolve the issue before hitting the ground.
The comparison of the reports, if the Indonesians publish one, will be interesting.