Scott wrote:
I'm not sure that is quite true. Anybody can do the work as long as an
IA signs it off in the logbook.


Any Powerplant rated mechanic can do any inspection or repair to any
aircraft engine and return it to service within the limititations of FAR
part 65 and 43 which I've posted below. The only "major" repairs
requiring IA approval are structural repairs to the engine, or involve
engines with internal geared superchargers or planetary reduction gears.

Furthermore, YOU can disassemble, inspect and reassemble the engine
yourself as long as a certified Powerplant mechanic "directly"
supervises you and signs off the work in the logbook. You can also
legally "inspect" the engine by doing a runout of the prop flange, or
you can legally blow it off altogether.

This is the relevant service bulletin for a prop strike. It is a
"mandatory" service bulletin, however it is not mandated by the FAA thru
an AD the way the Lycoming prop strike service bulletin is. Aircraft
are only required by the FAA to comply with all service bulletins if
operated to FAR part 135.

http://www.tcmlink.com/pdf2/SB96-11.pdf

This response is based on the references I have included and cited
herin. Please correct me if I am wrong on any of this information, but
only if you can cite references the way I have.

On 4/24/2001, a Cessna 210 with a Continental IO 520 suffered a broken
crankshaft. Everybody died. The aircraft had suffered a prop strike
four years before, and while the propeller was overhauled, no SB-95-11
inspection was performed on the engine, no runout of the prop flange was
recorded, no laws were broken, no mechanics were fired. It's entirely
up to the owner/operator whether the inspection is performed.


From FAR Part 65, section 65.87:

Sec. 65.87

Powerplant rating; additional privileges.

(a) Except as provided in paragraph (b) of this section, a certificated
mechanic with a powerplant rating may approve and return to service a
powerplant or propeller or any related part or appliance, after he has
performed, supervised, or inspected its maintenance or alteration
(excluding major repairs and major alterations). In addition, he may
perform the 100-hour inspection required by part 91 of this chapter on a
powerplant or propeller, or any part thereof, and approve and return it
to service.
[(b) A certificated mechanic with a powerplant rating can approve and
return to service a powerplant or propeller, or any related part or
appliance, of an aircraft with a special airworthiness certificate in
the light-sport category after performing and inspecting a major repair
or major alteration for products that are not produced under an FAA
approval, provided the work was performed in accordance with
instructions developed by the manufacturer or a person acceptable to the
FAA. ]


From FAR Part 43 Appendix A:
(2) Powerplant major repairs. Repairs of the following parts of an
engine and repairs of the following types, are powerplant major repairs:
(i) Separation or disassembly of a crankcase or crankshaft of a
reciprocating engine equipped with an integral supercharger.
(ii) Separation or disassembly of a crankcase or crankshaft of a
reciprocating engine equipped with other than spur-type propeller
reduction gearing.
(iii) Special repairs to structural engine parts by welding, plating,
metalizing, or other methods.

Scott wrote:
I'm not sure that is quite true. Anybody can do the work as long as an
IA signs it off in the logbook. The reason the mechanic sent it out is
probably to have the parts magnafluxed to check for tiny cracks. Not
many small shops are equipped for this...

Scott

Stealth Pilot wrote:




you have a certified aeroplane, no? then it must be maintained and
certified by licenced personel.
dont confuse the freedoms of experimental aircraft ownership with the
legal responsibilities that come with certified aircraft.



--
John Kimmel


"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong, is
not only unpatriotic and servile, but is morally treasonable
to the American public."

Theodore Roosevelt