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NATIONAL AIRCRAFT
APPRAISERS ASSOCIATION
What is the NAAA ?
The National Aircraft Appraisers Association (NAAA), is the trade association for professional aircraft
appraisers. aircraft appraiser
Since 1980, the NAAA has been the leader in establishing the standards and code of ethics for
professional aircraft appraisers in the United States and abroad.
The NAAA has more Certified Senior aircraft
appraisers with additional USPAP training
than any other appraiser association. Unlike
other appraiser associations NAAA members
perform only aircraft appraisals. As a result of
the NAAA being THE certification entity with
the most advanced, complete, up-to-date data base resources.
Accepted by the National Deposit Insurance Corporation
The National Aircraft Appraisers Association is the ONLY certification authority accepted by the NDIC
(National Deposit Insurance Corp.) and its member banks.
Furthermore, aircraft appraisals performed by NAAA members are recognized coast to coast by
virtually every legal authority, as THE legal authority in aircraft appraisals.
Value of the NAAA
What's the difference between an aircraft's value calculated using the National
Aircraft Appraisers Association aircraft valuation computer software and an
aircraft value determined by using one of the aircraft price guides?
The differences are enormous and to answer this question would take many pages. Briefly let us use
this analogy. Aircraft price guides are published, marketed, and distributed by book publishing
companies. The facts are, they do not appraise aircraft, they do not even gather or generate their own
data. Rather, they simply send out a questionnaire every 3 months to subscribers of their books and
ask a few questions which at best are very vague. From these questionnaires the book publishers
generate their data base.
An interesting point to consider is this: Nowhere on these questionnaires do the price guide book
publishers request information regarding:
•
The aircraft's damage history.
•
Engine or airframe modifications, if any.
•
Make and model of installed avionics and if there were any avionic upgrades.
•
Physical condition of the airframe including surface corrosion etc.
•
Inspection status of the aircraft. For example, the aircraft may have been out of Annual for
some period of time or/and there may be Airworthiness Directives and/or mandatory Service
Bulletins which have not been complied with.
•
Propellers and time since overhaul.
•
Engine overhaul status. For example, was the engine field overhauled to FAA overhaul service
limits or overhauled to factory new limits or a new engine.
•
Condition of de-ice equipment, instrumentation and other systems and components.
It is truly a mystery how one could generate an accurate database of aircraft values without a clue
regarding the condition of the airframe, make and model of avionics, damage history, airframe or
engine modifications and all of the other important value points listed above.
The National Aircraft Appraisers Association is the only organization in the world which considers all of
these factors in its database. Additionally, all of the information the National Aircraft Appraisers
Association uses is verified by its 350 Certified Aircraft Appraisers members who have physically
evaluated the aircraft, and each Association member subscribes to the same evaluation criteria while
performing the appraisal. The end result is an extremely accurate database that is verifiable.
AERONUVO can provide to you a professional opinion of the present market value on an aircraft, the
value on an aircraft to be renovated or modified and the value of an aircraft as a prudent safeguard
against excessive tax assessments, capital gains and other taxes. Our Premier and Certified Aircraft
Appraisal Services include Aeronca, Aero Commander, American Champion (ACA), American General,
Aviat Husky and Pitts, Beechcraft (Beech), Bellanca, Citabria, Cessna, Cirrus, CubCrafters (Cub Crafters),
DAHER SOCATA, Diamond, Ercoupe, Glasair, Great Lakes, Grumman American, Lancair, Luscombe,
Maule, Mooney, Piper, Rockwell Commander, Stinson and More.
AERONUVO provides its customers with our unique and customized aircraft appraisal services at many
airports in some instances with no added cost in the states of Virginia (VA), West Virginia (WV),
Pennsylvania (PA), Maryland (MD), Delaware (DE), North Carolina (NC) and New Jersey (NJ).
A Low Time Engine May Not
Mean Quality and Value
Reading the “Aircraft for sale”
advertisements can be interesting and
misleading. As aviation-oriented people, we
are conditioned to look for certain bits of
information which we believe will allow us
to evaluate the product offered for sale. In
the case of airplanes, this information can
generally be segregated into three
categories – airframe, avionics and engine.
For purposes of this section, you are on
your own with respect to airframe and
avionics.
There does seem to be information on
engines which cannot be emphasized too
strongly. Engine information is usually
provided as hours of operation since new or
from some major maintenance event. For
example, 700 TTSN (Total Time Since New)
would indicate that the aircraft and engine
have been flown for 700 hours since new
from the factory. Other, but not all, engine
related abbreviations include SMOH (hours
since major overhaul), SPOH (hours since
prop overhaul), STOH (hours since top
overhaul) and SFRM (hours since factory
remanufacture). Assuming that the
recommended TBO (Time Before Overhaul)
of the engine being considered is 1800 or
2000 hours, it would appear that hours of
use in the 400- to 800- hour range would
automatically make this engine a very
valuable commodity.
Unfortunately this is not always true, and
therefore an advertisement like this may
state numbers and facts which are
absolutely correct, but still misleading.
Consider a situation which occurred
recently. A Lycoming IO-360 engine with
less than 700 hours since new was reported
to be using oil at the rate of two-thirds
quart per hour and losing oil pressure
during flight. On closer examination, it was
determined that deterioration and wear
had caused metal contamination
throughout the engine. An engine overhaul
was necessary, and it included replacement
of items such as the camshaft, oil pump
gears and pistons. Why should an engine
with less than 700 hours since new be in
this sad state?
It should be apparent that the number of
hours the engine has operated is only part
of the story. We need to know all the facts if
we are to understand what may have
happened to this normally reliable engine,
and also if we are to determine the value of
a lowtime engine in a preowned airplane.
The Aircraft Appraisal
and
Valuation Company