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Service bulletin SIL 793

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 id10191607
Published by NHTSA2021-05-04
Manufacturer's numberSIL 793
Manufacturer's date2021-04-20
NHTSA componentELECTRONIC STABILITY CONTROL (ESC)

NHTSA's summary

Altec has discovered that certain DM47B and D3000B Series digger derricks built from July 2017 to May 2019 were not properly stability tested according to the Stability Test Form for Combined Digger Derrick and Platform Use contained in the Unit Installation Manual and in the Maintenance Manual. Altec requires these units to be properly stability tested according to the procedure no later than 6 months after receiving the SIL.

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

Driver assistance

Vehicles listed
ALTEC DIGGER DERRICK2017 to 2019

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