Japan Air Lines 123
Printed page 130. PDF page 141.
taken so that the empennage section of Boeing 747 and 767 will be protected against catastrophic failure in the event that a significant pressure buildup occurs in the normally unpressurized empennage. b) Modification of the design of the hydraulic systemsOpen official document at PDF page 141AAIC final report: Japan Air Lines Boeing 747SR-100 JA8119