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Service bulletin SIL 3033

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10230478
Published by NHTSA2023-01-19
Manufacturer's numberSIL 3033
Manufacturer's date2023-01-19
NHTSA componentSUSPENSION; EQUIPMENT

NHTSA's summary

Altec has learned that on certain AT37-G aerial devices built from November 2007 to April 2018, the rear torsion bar swing arm can interfere with the long runner channels under the body as the torsion bar rotates during road travel. The interference can cause wear issues and can cause welds on the body mounting angles or cross members to develop cracks.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Suspension

Vehicles listed
ALTEC AERIAL DEVICE2014 to 2018
ALTEC AT37-G2007 to 2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.