Like certified planes there are minor and major alterations (or repairs).
1. Does this action have significant effect on the following:
a. Weight and Balance? X
b. Structural Integrity? X
c. Performance? X
d. Powerplant Operation? X
e. Flight Characteristics? X
2. Will this action have any other effect on Safety of Flight? X
3. Must this action be accomplished by methods other than elementary operations? X
4. Will this action have a major effect on the product`s airworthiness? X
5. Will replaced parts/materials compromise the requirements of FAR 43.13(b)? X
6. Will this action come under the classification of "Major" in FAR Part 43 Appendix A?
FAR Part 43 Appendix A
(1)Airframe major alterations. Alterations of the following parts and alterations of the following types, when not listed in the aircraft specifications issued by the FAA, are airframe major alterations:
(ii) Tail surfaces.
(iv) Engine mounts.
(v) Control system.
(vi) Landing gear.
(vii) Hull or floats.
(viii) Elements of an airframe including spars, ribs, fittings, shock absorbers, bracing, cowling, fairings, and balance weights.
(ix) Hydraulic and electrical actuating system of components.
(x) Rotor blades.
(xi) Changes to the empty weight or empty balance which result in an increase in the maximum certificated weight or center of gravity limits of the aircraft.
(xii) Changes to the basic design of the fuel, oil, cooling, heating, cabin pressurization, electrical, hydraulic, de-icing, or exhaust systems.
(xiii) Changes to the wing or to fixed or movable control surfaces which affect flutter and vibration characteristics.
Yes to any of those it is major. No argument, Mel is the man.
Measure your before and after (minor) performance change and let us know if you get a chance.
What kind of wheel pants? Enjoy the free speed.
Raleigh, NC Area
RV-4, RV-7, ATP, CFII, MEI, 737/757/767
Last edited by gmcjetpilot : 05-15-2019 at 12:30 PM.