MACH TRIM FAIL • Flight Controls

SYS

ConditionCondition

MACH TRIM FAIL — compensation Mach tuck inop (QRH 9.20).MACH TRIM FAIL — Mach tuck compensation inoperative (QRH 9.20).

ObjectifObjective

≠ Speed Trim Fail 9.22 ; ≠ Runaway Stabilizer 9.4. Haute vitesse / Mach élevé.≠ Speed Trim Fail 9.22; ≠ Runaway Stabilizer 9.4. High speed / high Mach.

In FLT

Idée systèmeSystem idea

Mach Trim compense le Mach tuck à haute vitesse — auto sur le stabilizer.Mach Trim compensates Mach tuck at high speed — auto on the stabilizer.
FAIL = perte compensation ; limitations vitesse / altitude selon NNC.FAIL = loss of compensation; speed / altitude limits per NNC.
Ce n’est pas un runaway — pas de memory 9.4.This is not a runaway — not 9.4 memory.

MACH TRIM FAIL SPEED TRIM FAIL STAB OUT OF TRIM

QRH 9.20 → UrgenceQRH 9.20 → Emergency

Enseignement Normal — pas les étapes QRH. Labels cockpit en anglais. Flotte AILO B73C NG · C-FTUW / C-FTUY / C-FTUZ. QRH officiel AILO-0902 fait foi.Normal teaching — not QRH steps. Cockpit labels in English. AILO B73C NG fleet · C-FTUW / C-FTUY / C-FTUZ. Official QRH AILO-0902 prevails.