USM distributors make their money on the buy. This ranks every aircraft-family × ATA-chapter cell by where teardown supply, field demand, and fleet agingconverge — the “what should I be bidding on” question, answered from public FAA/DOT data instead of gut feel.
865 cells scored across 19 fleet families · updated hourly · class-level typical signals, not per-part picks
Top buy signals
Supply — what's coming to market Demand — field consumption intensity Fleet — aging tails still flying
#1737ATA 53
Fuselage
76
419 retired in window, avg 21.5yr · high field demand · 1,093 aging tails
23 in teardown
Supply
Demand
Fleet
24,513 catalog parts
#2A320 familyATA 25
Equipment / Furnishings
72
265 retired in window, avg 18.1yr · high field demand · 90% scrap-class · 727 aging tails
↑ supply building1 in teardown
Supply
Demand
Fleet
13,772 catalog parts
#3737ATA 21
Air Conditioning
59
419 retired in window, avg 21.5yr · steady field demand · 97% scrap-class · 1,093 aging tails
Cells being parted out faster than the field consumes them. Serviceable stock here can sit; price the turn accordingly.
737ATA 25
Equipment / Furnishings
AVOID
419 retired in window, avg 21.5yr · but thin field demand for the cell · 1,093 aging tails
23 in teardown
Supply
Demand
Fleet
63,371 catalog partshigh confidence
CRJATA 25
Equipment / Furnishings
AVOID
155 retired in window, avg 21.5yr · but thin field demand for the cell · 769 aging tails
↑ supply building
Supply
Demand
Fleet
8,071 catalog partshigh confidence
737ATA 20
Standard Practices - Airframe
AVOID
419 retired in window, avg 21.5yr · but thin field demand for the cell · 1,093 aging tails
23 in teardown
Supply
Demand
Fleet
25,400 catalog partshigh confidence
CRJATA 53
Fuselage
AVOID
155 retired in window, avg 21.5yr · but thin field demand for the cell · 769 aging tails
↑ supply building
Supply
Demand
Fleet
5,015 catalog partshigh confidence
A320 familyATA 44
Cabin Systems
AVOID
265 retired in window, avg 18.1yr · but thin field demand for the cell · 727 aging tails
↑ supply building1 in teardown
Supply
Demand
Fleet
5,514 catalog partshigh confidence
DC-10ATA 53
Fuselage
AVOID
52 retired in window, avg 48.4yr · but thin field demand for the cell · 20 aging tails
↑ supply building
Supply
Demand
Fleet
4,047 catalog partshigh confidence
MD-80ATA 53
Fuselage
AVOID
49 retired in window, avg 38.3yr · but thin field demand for the cell · 100 aging tails
↓ wave passing
Supply
Demand
Fleet
8,027 catalog partshigh confidence
DC-10ATA 25
Equipment / Furnishings
AVOID
52 retired in window, avg 48.4yr · but thin field demand for the cell · 20 aging tails
↑ supply building
Supply
Demand
Fleet
3,575 catalog partshigh confidence
A320 familyATA 53
Fuselage
AVOID
265 retired in window, avg 18.1yr · but thin field demand for the cell · 727 aging tails
↑ supply building1 in teardown
Supply
Demand
Fleet
7,167 catalog partshigh confidence
MD-80ATA 25
Equipment / Furnishings
AVOID
49 retired in window, avg 38.3yr · but thin field demand for the cell · 100 aging tails
↓ wave passing
Supply
Demand
Fleet
6,513 catalog partshigh confidence
737ATA 33
Lights
AVOID
419 retired in window, avg 21.5yr · but thin field demand for the cell · 1,093 aging tails
23 in teardown
Supply
Demand
Fleet
8,504 catalog partshigh confidence
757ATA 20
Standard Practices - Airframe
AVOID
55 retired in window, avg 28.9yr · but thin field demand for the cell · 407 aging tails
↓ wave passing1 in teardown
Supply
Demand
Fleet
18,297 catalog partshigh confidence
See the full buy-list + avoid-list
The complete family×ATA ranking across every fleet with teardown supply — plus the oversupplied cells to avoid. Drop your email to unlock (and you'll have it on /insights and /targeting too).
Class-level typical signals · no per-part picks · no spam.
Engine lane
Engines are ~49% of MRO spend and where USM traders live. The 14 commercial programs ranked by where dereg/teardown supply meets a large aging installed base. Young programs (LEAP, GTF) score low — no teardown supply yet; watch the retirement curve.
0 retired since ’23 · 198 active tails · med. build 2024 · powers A220
Supply
Base
Age
young — no supply yet
Supply momentum — waves forming
Fleets whose US retirement rate is accelerating vs their prior 5-year baseline — the teardown feedstock building now. Source ahead of the flood. Deregistration is a teardown proxy; recent-year figures lag, so we compare complete years only.
This is the market-wide view. Upload your inventory or sales mix on /insights and the buy-list re-ranks to the cells you can actually repair and sell — nothing leaves your browser but part numbers.
How to read this — and what it is not
Deregistration is a teardown proxy, not confirmed scrap; exported airframes are excluded from US supply where the data allows.
SDR events are a field-intensity signal, not market size — no share-of-market is claimed.
Scores are family×ATA grain only. We deliberately make no per-part-number buy recommendations — that would be fabricated precision.
Retirement/teardown figures are distressed-market indicators; verify specific lots against OEM and regulatory data before bidding.