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DIMINUTION IN VALUE WHEN APPRAISING
AIRCRAFT
Most Aircraft Values are affected negatively when there is a
documented record of damage and / or repair
Merriam Webster defines diminution as the act or process of becoming less; a lessoning or reduction;
change toward something smaller or lower; a reduction or decrease.
In the world of aircraft transactions when evidence of “damage history” appears in an aircraft’s records
the tendency is to reduce (deduction or decrease) the value relative to its peers in the marketplace,
known as an Aircraft's Diminution in Value. This category of aircraft damage is a topic of hot debate
whenever it arises. Diminution in Value describes the reduction of market value of the aircraft
resulting from the damage history, versus an accident free aircraft, even though the physical damage
may have been fully repaired, and even though the repair may have been completed by the aircraft
manufacturer.
If (or when) your aircraft is damaged, appropriate hull insurance coverage will pay to physically restore
the aircraft to a serviceable condition. If you intend to keep that aircraft for the duration of its useful
life, repair is probably sufficient. Therefore Diminution in Value likely does not affect you to the same
degree as an owner motivated to sell.
But what if you want or need to sell the aircraft and the repair work was documented in maintenance
logbook entries or the damage was severe enough to require the filing of an FAA Form 337? What is
the impact on the Fair Market Value of that repaired damage when similar aircraft with no damage
history are on the market at the same time. A Certified Aircraft Appraisal and answer that question.
Factors the AERONUVO Aircraft Appraiser may include are:
•
The type and extent of the damage.
•
The method and quality of repair.
•
How long ago the damage occurred.
•
How the repair was recorded in the aircraft’s maintenance logbooks.
•
The sales market for the aircraft type that suffered the damage.
Fortunately, you can now cover the reduction in the aircraft’s resale value following an accident using
so-called ‘Diminution in Value Cover’ insurance. This can now be arranged to reimburse the insured,
not only for the cost of repairs, which is paid for under the Hull All Risks/War Risks policies but also a
fixed amount agreed at the inception of the aircraft insurance for the reduction in final value. The real
advantage of this coverage is that the claim is paid out as soon as the damage is ascertained.
AERONUVO delivers certified aircraft appraisals for select aircraft from such makers as 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).
So How Old is Too Old?
There might be a few more of the figurative
gray hairs and wrinkles on the average
aircraft these days, but according to safety
records, the General Aviation fleet shows no
evidence of any systemic safety issues. Solid
design and construction characteristics are
a major factor in the longevity of these
aircraft. But that can also be a rationale for
complacency.
Inspection processes are a good example
where this complacency can creep in.
Although there is no requirement for an
annual inspection to be any different for an
aircraft that’s 40 years old, it doesn’t
necessarily mean a 40-year-old plane
should get the same type of inspection.
Certain areas that aren’t required to be
checked should still be inspected. Owners
and mechanics should ensure that
inspections include all areas of the aircraft,
not just the ones that are easy to reach and
labeled on a checklist.
Also keep in mind that as an airplane ages,
the inspection methods and techniques
may change and require “special attention”
inspections. These special inspections,
focused on areas prone to aging problems,
become even more critical when an aircraft
is subjected to conditions like outdoor
storage, inactivity, or modifications. If
applicable, be sure to expand your normal
inspection checklists to include these
special attention items. For assistance,
recruit help from the manufacturer, a
mechanic, or a type club, and be sure to
reference Advisory Circular (AC) 20-106,
Aircraft Inspection for General Aviation
Aircraft Owner. There’s also a good baseline
checklist at the back of the Best Practices
Guide for Maintaining Aging General
Aviation Airplanes.
The Aircraft Appraisal
and
Valuation Company