© AERONUVO, The Professional and Expert Aircraft Appraisal and Valuation Services Company - All Rights Reserved 2002-2018

AIRCRAFT APPRAISAL

DE-ICING SYSTEM GRADING CRITERIA

Wing and Horizontal and Vertical Stabilizer Anti-Icing Systems for

Aircraft Appraisals

The wing leading edges, or leading edge slats, and horizontal and vertical stabilizer leading edges of many aircraft make and models have anti-icing systems installed to prevent the formation of ice on these components. The most common anti-icing systems used are thermal pneumatic, thermal electric, and chemical. Most general aviation (GA) aircraft equipped to fly in icing conditions use pneumatic deicing boots, a chemical anti-ice system. High-performance aircraft may have “weeping wings.” Large transport-category aircraft are equipped with advanced thermal pneumatic or thermal electric anti-icing systems that are controlled automatically to prevent the formation of ice. In the NAAA Certified Aircraft Appraisal, our appraisers consult the following condition rating criteria.

#10 Rating:

De-icing boots condition are flawless. Rubber is soft, no blemishes, and appear to be in new condition. The age of the boots may be no more than one year old if the aircraft is stored outside, and no more then two years old if stored inside.

#9 Rating:

De-icing boots condition are almost flawless and met the #10 rating criteria except for the age of the boots since installation. The boots will have no physical evidence of any deterioration except they may not be shiny, although they will be soft to the touch. aircraft appraiser

#8 Rating:

There are no patches on the de-icing boots and the adherence to the airframe surfaces is excellent. The boots are losing their glossy look and in general no longer look like new but do not show any evidence of dry rot.

#7 Rating:

Generally the boots would have a rating of #8 except there may be one or two patches which have been properly applied and are adhering to the surface of the de-icing boot.

#6 Rating:

There may be several patches or other boot repairs which have been done properly. Additionally there may have been some boot repairs, such as re-adherence to the airframe etc. The boots appear to be dull but are not dry rotting.

#5 Rating:

Several patches and repairs have been accomplished. The texture of the boot is beginning to harden and tiny hair-line cracks are beginning to become visible. The boots are functioning properly and are in airworthy condition.

#4 Rating:

Boots are beginning to show definite signs of dry rot. Additional evidence of the condition is shown by the number of patches existing on the boot.

#3 Rating:

Boots look poor, dry rotting is very evident, patches numerous and in general the boots are ready for replacement although they still appear to be functional.

#2 Rating:

Boots are no longer airworthy and must be replaced.

#1 Rating:

Boot de-icing system is in need of repair and boot replacement. Estimate of repairs required for de- icing system repairs.
piper cub landing ready for an aircraft appraiser biplane in a sharp turn for an aircraft appraisal

‘Aircraft Market Value’ As

Utilized In The Appraiser’s

Work Assignment

Aircraft Market Value (or Current Market Value if the value pertains to the time of the analysis) is the Appraiser's opinion of the most likely trading price that may be generated for an aircraft under the market circumstances that are perceived to exist at the time in question. Aircraft Market Value assumes that the aircraft is valued for its highest, best use, that the parties to the hypothetical sale transaction are willing, able, prudent and knowledgeable, and under no unusual pressure for a prompt sale, and that the transaction would be negotiated in an open and unrestricted market on an arm’s-length basis, for cash or equivalent consideration, and given an adequate amount of time for effective exposure to prospective buyers. Fair Market Value (FMV) is synonymous with Market Value, and likewise Current Fair Market Value is synonymous with Current Market Value because the criteria typically used in those documents that use the term “Fair” reflect the same criteria set forth in the above definition of Market Value. 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). We are open for business 7 days a week, 7:00 AM to 9:00 PM Eastern Standard Time. As always, our consultations and advice are free with no obligation. It’s all part of our superior aircraft appraisal services.

The Aircraft Appraisal

and

Valuation Company

TOLL FREE 844.341.2376

AIRCRAFT APPRAISAL

DE-ICING SYSTEM GRADING

CRITERIA

Wing and Horizontal and Vertical

Stabilizer Anti-Icing Systems for

Aircraft Appraisals

The wing leading edges, or leading edge slats, and horizontal and vertical stabilizer leading edges of many aircraft make and models have anti-icing systems installed to prevent the formation of ice on these components. The most common anti- icing systems used are thermal pneumatic, thermal electric, and chemical. Most general aviation (GA) aircraft equipped to fly in icing conditions use pneumatic deicing boots, a chemical anti-ice system. High-performance aircraft may have “weeping wings.” Large transport-category aircraft are equipped with advanced thermal pneumatic or thermal electric anti-icing systems that are controlled automatically to prevent the formation of ice. In the NAAA Certified Aircraft Appraisal, our appraisers consult the following condition rating criteria.

#10 Rating:

De-icing boots condition are flawless. Rubber is soft, no blemishes, and appear to be in new condition. The age of the boots may be no more than one year old if the aircraft is stored outside, and no more then two years old if stored inside.

#9 Rating:

De-icing boots condition are almost flawless and met the #10 rating criteria except for the age of the boots since installation. The boots will have no physical evidence of any deterioration except they may not be shiny, although they will be soft to the touch. aircraft appraiser

#8 Rating:

There are no patches on the de-icing boots and the adherence to the airframe surfaces is excellent. The boots are losing their glossy look and in general no longer look like new but do not show any evidence of dry rot.

#7 Rating:

Generally the boots would have a rating of #8 except there may be one or two patches which have been properly applied and are adhering to the surface of the de-icing boot.

#6 Rating:

There may be several patches or other boot repairs which have been done properly. Additionally there may have been some boot repairs, such as re- adherence to the airframe etc. The boots appear to be dull but are not dry rotting.

#5 Rating:

Several patches and repairs have been accomplished. The texture of the boot is beginning to harden and tiny hair-line cracks are beginning to become visible. The boots are functioning properly and are in airworthy condition.

#4 Rating:

Boots are beginning to show definite signs of dry rot. Additional evidence of the condition is shown by the number of patches existing on the boot.

#3 Rating:

Boots look poor, dry rotting is very evident, patches numerous and in general the boots are ready for replacement although they still appear to be functional.

#2 Rating:

Boots are no longer airworthy and must be replaced.

#1 Rating:

Boot de-icing system is in need of repair and boot replacement. Estimate of repairs required for de- icing system repairs.
© AERONUVO, The Professional and Expert Aircraft Appraisal and Valuation Services Company - All Rights Reserved 2002-2018
The Aircraft Appraisal and Valuation Company Toll Free:  844.341.2376