© AERONUVO, The Professional and Expert Aircraft Appraisal and Valuation Services Company - All Rights Reserved 2002-2018
AIRCRAFT APPRAISAL
INTERIOR GRADING AND STANDARDS CRITERIA
Determining Aircraft Cabin Interior Ratings During Aircraft
Appraisals
A comfortable and relaxing aircraft interior is more than a luxury, it is a necessity.
Today, the line between recognizing a new aircraft and one that has undergone refurbishment is
somewhat blurred. While, many owners acknowledge their aircraft to be well used, they might prefer
keeping their aircraft as opposed to purchasing a newer model. In such cases owners typically choose
avionic upgrades, fresh paint, and newly styled interiors to be sound investment decisions while
others choose to acquire an alternative pre-owned aircraft, perhaps having design features that more
effectively meet their desires and objectives. aircraft appraiser
Adding comfort and years of life to an aircraft can be acheived with a modern updated interior.
Our Appraiser uses the National Aircraft Appraisers Association (NAAA) standards for aircraft interior
ratings for appraisals.
#10 Rating:
Interior condition is flawless. All material, fabric, plastic, carpet, headliner, wood cabinetry, etc. are
spotless, with no matting, scratches or signs of wear. Seams are straight, tight and in general the
interior looks, feels and smells new.
#9 Rating:
Aircraft interior is almost flawless and it would meet the #10 rating criteria except for minor
exceptions. Carpet at the entry area and in the cockpit and perhaps the pilots, and/or the copilots
seats may show slight signs of matting.
#8 Rating:
Interior is very clean with no tears, loose stitching, stains, fading or excessive wear on fabric, carpets,
plastic, wood cabinetry, or headliner.
#7 Rating:
Interior is clean with no tears, major stains or fading or excessive wear on fabric, plastic, wood
cabinetry, or headliner. Carpet at entry and cockpit areas may show signs of wear but are not ragged.
Stitching is tight, although the seams may not be straight. The interior may need to be cleaned but
once cleaned would show well.
#6 Rating:
Although the interior has stains, which may not clean up, in general the fabric is in good serviceable
condition. The carpets would show wear at entry and cockpit areas. There may be matting of
materials on seats with wear noticeable on arm rest and lower seat cushions. There may be stains on
headliner and/or signs of material fading. However, the fabric is generally bright with no tears
although there may be areas which have had upholstery repairs. A good cleaning may be in order and
after cleaning, the interior would look satisfactory.
#5 Rating:
Entry areas, cockpit and other high use areas show significant signs of wear and/or stains. Seat
cushions, headliner and side panels may have stains, loose stitching, fading, and in general have a well
used appearance. Any needed repairs are minor in nature, and the interior may need a good cleaning,
but after cleaning the interior would still have a well used appearance.
#4 Rating:
Generally the interior has the same characteristics of a #5 rating except for definite need of repairs.
The fabric areas exposed to sunlight are well faded and beginning to dry rot. The only way to improve
the appearance of the interior would be to install a new one. The existing interior is still serviceable.
#3 Rating:
The interior has all the conditions of a #4 rating except that the extent of repairs is excessive. The
interior as is, is in poor condition and is not serviceable.
#2 Rating:
The interior is not serviceable and the extent of repairs to make it serviceable are not cost effective.
The interior needs to be replaced.
#1 Rating:
Generally all of the characteristics of #2 with the exception of required repairs to interior structures
such as seat frames, chair rails, cabinetry etc.
Other Aircraft Maintenance
Inspection Requirments
Condition Inspection
A condition inspection is required once
every 12 calendar months for light-sport
aircraft certificated in the light-sport
category. In accordance with 14 CFR part 91,
section 91.327, the condition inspection
must be performed by “a certificated
repairman (light-sport aircraft) with a
maintenance rating, an appropriately rated
mechanic, or an appropriately rated repair
station in accordance with inspection
procedures developed by the aircraft
manufacturer or a person acceptable to the
FAA.”
Other Inspection Programs
The annual and 100-hour inspection
requirements do not apply to large (over
12,500 pounds) airplanes, turbojets, or
turbopropeller-powered multiengine
airplanes, or to airplanes for which the
owner or operator complies with the
progressive inspection requirements.
Details of these requirements
may be determined by reference to 14 CFR
part 43, section 43.11; 14 CFR part 91,
subpart E; and by inquiry at your local
FSDO.
Progressive Inspection
To minimize maintenance downtime, the
owner may opt for a progressive inspection
plan. Progressive inspections benefit
owners whose aircraft experience high
usage such as fixed base operators (FBOs),
flight schools, and corporate flight
departments. Unlike an annual inspection, a
progressive inspection allows for more
frequent but shorter inspection phases,
only if all items required for the annual and
100-hour inspections are inspected within
the required time. The authority to use a
progressive inspection plan is non-
transferable. Once the aircraft is sold, an
annual becomes due within 12 calendar
months of the last complete cycle. The 100-
hour inspection is due at the completion of
the next 100 hours of operation. Most
airframe manufacturers provide a
boilerplate progressive maintenance plan.
14 CFR Part 43, Appendix D, Scope and
Detail of Items (as Applicable to the
Particular Aircraft) To Be Included in Annual
and 100-Hour Inspections, contains a list of
general items to be checked during
inspections.
The Aircraft Appraisal
and
Valuation Company