Old Aero Guy
As stated on an earlier topic, although the GE90-115B had a good first 3 years with no IFSD, they have now had 5 in the last 5 months. (Reply 33)
Do you have a reference for the 5 IFSD's in the past five months? I believe the number is 3 IFSD's total.
This leads to the .0023 IFSD per 1000 engine hours I calculated in Reply 25.
How many engine hours are you using in Reply 33 to get a .015 per 1000 rate?
Besides, is it really true that AF has lost 180 min. ETOPS for the 777? There are some comments that say they haven't.
My own database is the reference for the 5 777-300ER x IFSDs, but there may be more. Here are the ones I know of
- June 07 Air France, IFSD Diversion to Guadeloupe
- August 07 ANA, IFSD return to Narita
- Sept (30th 07) ???, IFSD, ??????
- Oct 07 Emirates, IFSD, return to Bankok
- Nov 07 Air France, IFSD Diversion to St Petersburg
So there are at least 2 AF IFSD (maybe 3) - I was wrong on mylast post in saying they only had 1.
The 0.015 I quoted was for the hours over the 5 months they have had this bunch of IFSDs (I'm sure that's the way the authorities will view it!), the calculation is shown in the post.
I have no idea about whether the AF ETOPS downgrading is true, but I am sure they have looked closely at it, especially if they have had 3 rather than 2 .