3.14 - ELECTRICAL TRIM

Question 1

PITCH TRIM RUNAWAY

CAS WARNING - “PITCH TRIM RUNAWAY” and voice callout

Answer 1

1. TRIM INTERRUPT switch - INTR
2. PITCH TRIM CB LA1 - PULL
3. TRIM INTERRUPT swicht - NORM
   if trim runaway continues
4. TRIM INTERRUPT switch - INTR
5. PITCH TRIM ALTN CB RA1 - PULL
6. PITCH TRIM CB LA1 - CLOSE
7. TRIM INTERRUPT switch - NORM

if the pitch trim failed the autopilot is not operative

if main stabilizer has failed
8. Pitch trim - Use alternate stab trim

Question 2

TRIM RUNAWAY

non commandede trim operation, rapidly increasing out of trim forces

Answer 2

1. TRIM INTERRUPT switch - INTR
2. CB of failed trim - Pull
   - pitch trim - LA1
   - pitch trim altn - RA1
   - ail trim - LC1
   - rud trim - LB1
3. TRIM INTERRUPT switch - NORM