Parts · Cabin, seats and restraints

Test Unit

4 failure reports named the test unit in the last ten years, 7 since 2006, most often on the Mcdonnell Douglas MD-11; the condition most often found was "faulted". 1 FAA approvals let 1 company make a replacement test unit, Teledyne Controls holding the most (1).

Reports by year

Reports by year, as a table

	reports
2006	1
2007	1
2008	1
2024	3
2026	1

Which system the reports file it under last ten years

Cabin, seats and restraints2Emergency equipment1Airframe structure1

Reports by system, as a table

	reports
Cabin, seats and restraints	2
Emergency equipment	1
Airframe structure	1

Models most often reporting it last ten years

Mcdonnell Douglas MD-112Airbus A3001Boeing 7171

Models most reported, as a table

	reports
Mcdonnell Douglas MD-11	2
Airbus A300	1
Boeing 717	1

How it failed the condition found, last ten years

faulted2inoperative2

Conditions found, as a table

	reports
faulted	2
inoperative	2

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a test unit and sell it as an approved part for the models named. These are the companies holding such approvals for a test unit:

Teledyne Controls 1

Maker	Part	Replaces	Fits	Granted	Status
Teledyne Controls	Test Unit SLZ9619	SLZ9619	Dassault Aviation Mystere Falcon 10	2001-12-13	current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.