By: AirTravellerPH Staff
After much delays, the Boeing 777X, a more stretched and updated version of the 777 family, is scheduled to take its first flight on January 23 with the hopes of keeping the programme on track to begin deliveries in early 2021. This ia a major milestone for Boeing after the American aircraft manufacturer was hounded with a lot of issues, most prominent of them is the grounding of the 737 MAX.
Based on a report by FlightGlobal, Boeing scheduled the maiden flight of the 777X on the 23rd at 10:00am Seattle time but the manufacturer made mention that the timing "could change due to weather and other factors."
The 777X program was also not spared from issues which resulted to the delay of the maiden flight. One of the issues was a "durability issue" with the stator vanes in front of the engine's high-pressure compressor. According to GE, the manufacturer of the 777X's GE9X engines, these vanes pivot on a bearing to keep the engine running at peak performance. It causing hotter-than-expected exhaust gas temperatures, resulting in unexpected component degradation.
The GE9X powerplant produce a massive 105,000 lbs of thrust per engine.
GE recalled 4 engines from Boeing in 2019, forcing them to delay the 777X's first flight. The aircraft manufacturer planned to complete the 777-9's first flight in 2019 to begin deliveries in 2020. GE says it had now fixed the issue.
Based on Boeing data, first order of the 777-9X stands at 309, however, consensus view that orders will increase by the middle of the decade.
Boeing launched development of the 777X at the Dubai Air Show in 2013. The redesigned aircraft will have new GE Aviation GE9X powerplants, composite wings and folding wing-tips. The two-aircraft family comprises the 426-seat 777-9 and the longer-range, 384-seat 777-8.