ENSTROM 280FX OPERATOR’S MANUAL 10-1-7
FAA Approved: Mar 26/12 Rev. 6
Report No. 28-AC-020 Feb 21/12
SECTION 3. EMERGENCY AND MALFUNCTION
PROCEDURES
10-1-8. Liquid Jettison
Jettison liquid by actuating dump valve switch on cyclic
stick. A slight pitch up can be anticipated. Adjust cyclic
control accordingly.
NOTE
Jettison tests were performed with one dump
valve inoperative to produce maximum lateral
load and the demonstration showed negligible
effect on lateral control.
10-1-9. Loss of Power
Enter autorotation, jettison load immediately and follow
normal flight manual procedures.
10-1-10. Loss of Tail Rotor
Enter autorotation, jettison load immediately and follow
normal flight manual procedures.
10-1-11. Abnormal Vibration
In the event of sudden onset of a severe l/rev. vibration,
jettison load immediately and land helicopter. Check and or
repair M/R dampers as appropriate before further flights.
10-1-12. Spreader Malfunction
If increasing cyclic displacement is required for hover or
forward flight, land immediately and check loading situation
and spreader operation.
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