Crossover Tube

2 failure reports named the crossover tube in the last ten years, 14 since 2002, most often on the Bell 407; the condition most often found was "cracked". 2 FAA approvals let 1 company make a replacement crossover tube, Aerospace Welding Minneapolis, INC. holding the most (2).

Reports by year

Reports by year, as a table

	reports
2002	3
2003	1
2004	4
2005	1
2012	1
2014	2
2024	1
2025	1

Which system the reports file it under last ten years

Landing gear2

Reports by system, as a table

	reports
Landing gear	2

Models most often reporting it last ten years

Bell 4071Robinson R221

Models most reported, as a table

	reports
Bell 407	1
Robinson R22	1

How it failed the condition found, last ten years

cracked1sheared1

Conditions found, as a table

	reports
cracked	1
sheared	1

Engines most often reporting it

Lycoming O-360-J2A 1

Approved replacement parts 2 parts manufacturer approvals

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

Aerospace Welding Minneapolis, INC. 2

For these models most: Piper PA-23 Apache and Aztec (2).

Maker	Part	Replaces	Fits	Granted	Status
Aerospace Welding Minneapolis, INC.	Crossover Tube, Left Engine A33419-05	Piper 28278-112	Piper PA-23-250 S/N 27-2505 and on	2010-02-03	current
Aerospace Welding Minneapolis, INC.	Crossover Tube, Right Engine A33420-05	Piper 28279-14	Piper PA-23-250 S/N 27-2505 and on	2010-02-03	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.