ASA-Accredited Aircraft Appraisals

As an independent aircraft appraisal company with a global footprint, JSSI Advisory Services is uniquely positioned to provide our clients with consistent, professional, and cost-effective appraisals for virtually every make and model of business jet, turboprop and helicopter.

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On-site appraisals

Desktop appraisals


30+ years of aviation maintenance data

70+ technical experts

Worldwide service

Why request an appraisal?

It’s critical to keep a finger on the pulse of your aircraft’s current value, not only for tax and depreciation purposes but also when you seek to refinance or sell your aircraft.

Every JSSI Advisory Services appraisal includes:

What types of aircraft appraisal does JSSI offer?

Desktop Appraisal

This ‘sight unseen’ service provides a less costly appraisal option with a shorter turn time. It is convenient, cost-effective and allows you to secure an accurate aircraft valuation anywhere in the world, without requiring an on-site inspection. With our desktop valuation advisory service, your accredited-aircraft appraiser will go well beyond a simple pricing comparison to:

On-Site Appraisal

A physical, on-site appraisal includes all of the standard desktop appraisal features, plus a hands-on inspection that includes a thorough examination of the aircraft. This includes a review of all engine and airframe maintenance logbooks and records and extensive research into recent sales of comparable make and model aircraft to establish the asset’s current market value.

What to look for when hiring an appraiser

Knowledgeable, trustworthy and qualified appraisers are in high demand from OEMs, banks and leasing companies, insurance underwriters, and on-demand charter operators. But what qualifies an individual to become an appraiser?

The appraisal profession is a complex one and education and experience are both key components. However, technically anyone can brand themselves as an aircraft appraiser, regardless of their knowledge, skills, experience, or abilities. To address this, the American Society of Appraisers (ASA) established an aircraft-specific discipline and designation program, to help owners and financial institutions ensure their aircraft receives an accurate valuation. Each of JSSI’s aircraft appraisers is fully accredited by the ASA.

Why hire an ASA-accredited appraiser?

When you request an appraisal, or a reappraisal for insurance, refinancing or disposition purposes, we recommend that you always work with an ASA-accredited appraiser. This represents someone who has invested in their profession and will be the most accomplished and skilled person to appraise your aircraft.


ASA-accredited appraisers provide valuations that are:

As part of the extensive accreditation process, a peer evaluation of appraisal reports is conducted before an individual receives either the Accredited Member (AM) credentials for two years of experience, or the Accredited Senior Appraiser (ASA) credentials for five years of experience. There are also extensive continuing education requirements.

Importantly, ethical matters form a key component of ASA’s Uniform Standards of Professional Appraisal Practice (USPAP) course and ASA ensures all accredited appraisers abide to this rigid code of professional ethics.

The JSSI Advantage

Independent and Objective

Our own global infrastructure of more than 70 certified Technical Advisors provides your appraisal team with decades of combined expertise and an independent perspective on a diverse range of aircraft and engine makes and models; including Beechcraft, Bombardier, Cessna, Embraer, Falcon, Gulfstream, GE, Honeywell, Pratt & Whitney Canada, Rolls-Royce, and many more OEMs.

ASA-Accredited Appraisers

All JSSI appraisers carry the highest accreditation from the ASA. In fact, we have one of the largest teams of ASA-accredited appraisers on staff in the industry. We bring decades of technical experience and maintenance data to every appraisal to ensure an accurate valuation for your aircraft using resources unavailable to the rest of the market. While all ASA appraisers provide accuracy and follow common practices, only our appraisers have the full resources of JSSI behind them.

Personalized Service

With personal consultation and extensive communications throughout the process, you’ll receive unrivaled customer service and an in-depth review of the completed appraisal. We are uniquely positioned to leverage a unique combination of MRO relationships, technical expertise and market knowledge to provide an accurate appraisal tailored to your aircraft.

Aircraft Cost Experts

We are the experts in aircraft ownership and operating costs. Over 2,000 business jets, regional jets and helicopters are on JSSI programs across the globe. We support more than 200 airframes, 700 APUs, 4,000 engines, and 10,000 maintenance events each year across multiple makes and models. Conklin & de Decker, a JSSI company, is the leader in aircraft cost comparison data and powers every appraisal.

Let's Talk

Contact us today to find out how JSSI Advisory Services can become a vital extension of your asset management department and provide the data, knowledge and expertise you need to make informed decisions.

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