TA的每日心情 | 奋斗 前天 03:36 |
|---|
签到天数: 2129 天 [LV.Master]无
|
本帖最后由 holycow 于 2019-3-14 16:19 编辑
2 U6 x6 }5 [6 p& f3 I5 H7 C2 z! f) ]! } Q+ B
$ w5 k# _! V M& u, X8 _这是FAA几天前发的Continued Airworthiness Notice
% B) G8 Q! ^2 e( V9 k3 s
; t( V: D4 z7 `# h8 @! LOngoing oversight activities by the FAA include:, M7 I/ B+ G! B* B2 {& J. m
- Boeing’s completion of the flight control system enhancements, which provide reduced reliance on9 m% f3 ~) h7 w9 x
procedures associated with required pilot memory items. The FAA anticipates mandating these; \! N9 x% N _7 ^- T. D& B0 J9 W
design changes by AD no later than April 2019.% r8 ~( ^. i4 d8 q" ?
- Design changes include:3 u0 W- H4 @1 C
MCAS Activation Enhancements
* ~3 Y* U1 |, d- b( L# U MCAS AOA Signal Enhancements6 e& ]: k* f: \% [
MCAS Maximum Command Limit$ h/ I0 ?( |( k5 f' L% U
& i# M7 b4 d. O# W, f0 l) @
那两个bold items, signal那个我看到的解释是任何时候输入信号都只有一路,reset MCAS可以左右切换,但有左边没右边,有右边没左边。第三路信号是进standby display, 根本不进MCAS% W' n' w1 I- u5 g! Z
& ?$ b& C' F7 J' X6 A, V" h. v1 t
Maximum Command Limit,很简单,要求任何时候不能剥夺elevator的authority。反过来看,现在就是stab trim到一定位置就剥夺了elevator的authority(不加限制的必然结果)" T% o8 Z3 l& {+ |8 _, ~! n
3 z! ~: y( H# h$ |% p
扰流片的问题,有人现在提出来MAX的spoiler从NG的机械控制改成FBW, 然后各种scenario, 那部分我还没有完全看明白 |
评分
-
查看全部评分
|