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Old 29th Nov 2019, 16:25
  #97 (permalink)  
Grebe
 
Join Date: Sep 2019
Location: leftcoast
Posts: 3
slf3 said That's kind of my point,. It was ETOPS out of the box.....

The FAA changed the rules to suit Boeing.


Suggest you check your history re 777 ETOPS


September 2, 1996


Sept 2 1996
FARNBOROUGH - The GE90-powered Boeing 777 completed all 180-minute ETOPS (Extended Twin OPerationS) Type Design requirements in August after flying a demanding Early ETOPS 1,000-cycle flight test program.

During the flight test program, the GE90 performed flawlessly. One of the engines, #900109, which flew the entire 1,000-cycle test program in an unbalanced state to prove its strength and endurance, was on display at GE's Farnborough Exhibit.

In September, the highest-thrust engine ever certified by the FAA, the 92,000 pound (409 kN) thrust GE90-92B, will begin flight testing on a Boeing 777. This will be followed by flight testing in October on the Boeing 777-200 IGW (Increased Gross Weight) aircraft. The -92B will also be the first engine to enter service on the 777-200 IGW when the aircraft is delivered to launch customer British Airways early next year. The engine will enter service derated to 90,000 pounds (400 kN) thrust.

Since its initial delivery in late 1995, the 85,000 pound (378 kN) thrust GE90-85B has achieved an outstanding in-service record. The engine, in service on four British Airways and two China Southern 777 aircraft, has logged more than 21,000 flight hours while maintaining a 99.95 percent dispatch reliability rate. The engine is also demonstrating excellent performance retention, resulting in longer on-wing life and lower maintenance costs to airline customers.

The GE90 is produced by GE Aircraft Engines and its revenue-sharing participants Snecma of France, IHI of Japan, and FiatAvio of Italy.


So what Rules did FAA change ? Be specific please
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