# Service bulletin SIL 794

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.

- Type: Service bulletin
- NHTSA id: 10187972
- Published by NHTSA: 2021\-03\-03
- Manufacturer's number: SIL 794
- Manufacturer's date: 2021\-02\-26
- NHTSA component: SUSPENSION

## NHTSA's summary

Altec discovered that one of the fasteners used to attach the rear shear plate on the subbase of the unit to the chassis can contact the chassis suspension U\-bolt. The fastener can be a HuckBolt or a hex bolt and nut. Movement of the U\-bolt can possibly cause damage to the HuckBolt or hex bolt and nut resulting in the fastener being broken off. Altec requires the customer to perform an inspection of the rear shear plates on both sides of the subbase to determine if HuckBolts or hex bolts and nuts were installed and if there is interference with the U\-bolts. The inspection procedure included in the SIL should be completed no later than 90 days after the receipt of the SIL.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187972-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187972-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Suspension

## Vehicles listed

- 2016 to 2018 ALTEC AERIAL DEVICE

JSON: [/v1/bulletins/10187972](/v1/bulletins/10187972)

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