AverageUser From , joined Dec 1969, posts, RR: Posted (3 years 10 months 6 days 15 hours ago) and read 3015 times:
If you can understand my question, you might be able to help. I'm located some NTSB recommendations on the subject, but it's all blank in the search for the actual ADs. Could it be they were never actually mandated? Seach your circular files please.
747classic From Netherlands, joined Aug 2009, 1779 posts, RR: 11 Reply 2, posted (3 years 8 months 3 weeks 4 days 13 hours ago) and read 2385 times:
I searched also on the Internet, no result. I think (hopefully I am wrong) all the recommendations of the NTSB are still not covered in an AD.
But what strikes me when I read all the articles about this topic (MD10 versus MD11), that the FAA allowed an airline to fly two airplanes with a totally different flying behavior on a common type rating.
The attempt to make the MD11 more equal to the MD10 via software updates FCC 907/908 was not very successful, see all the incidents en accidents that happened after that.
747classic From Netherlands, joined Aug 2009, 1779 posts, RR: 11 Reply 3, posted (3 years 8 months 3 weeks 4 days 9 hours ago) and read 2343 times:
Quoting AverageUser (Thread starter): If you can understand my question, you might be able to help. I'm located some NTSB recommendations on the subject, but it's all blank in the search for the actual ADs. Could it be they were never actually mandated
The NTSB urged that the FAA to require the installation of new LSAS software, known as the Flight Control Computer upgrade (FCC-908) to render the airplane less susceptible to over control. The FAA never required this upgrade, but it was installed in all MD-11s worldwide nonetheless. The NTSB closed this recommendation as "Acceptable Alternate Action." Well, the change was made to all U.S.-registered MD-11s, including the one that just crashed at Tokyo. Clearly, upgraded LSAS was not sufficient to cure the MD-11's shaky and demanding landing characteristics.
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From , joined Dec 1969, posts, 
From Greenland, joined Jun 2004, 8473 posts, 
Don't even know where to look it up. If I meet one of the guys who knows this, I'll ask.
From Netherlands, joined Aug 2009, 1779 posts, 
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