4 ms·
But parent alleges that the 747 is outside of certification requirements, which is demonstrably false.
by rwc 8y ago
But parent alleges that the 747 is outside of certification requirements, which is demonstrably false.
- inferiorhuman 8y agoNeither United nor Delta retrofitted a fuel tank interting system, that's why they retired their 747s earlier than expected. https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC%20120-98A.pdf https://www.faa.gov/documentLibrary/media/Advisory_Circular/... Paragraph 2-8 indicates the dates compliance became mandatory (Dec 26, 2017 with a potential one year extension). There are 747-400s flying in the United States, however they've all had interting systems retrofitted, are foreign registered, or both.