# Service bulletin SN661

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: 10129227
- Published by NHTSA: 2018\-02\-21
- Manufacturer's number: SN661
- Manufacturer's date: 2018\-01\-22
- NHTSA component: EQUIPMENT

## NHTSA's summary

17i Aerial equipment has control valves manufactured with potential leakage path. No affected units have been sold in the USA, this model was only shipped to dealers in China and Austrailia for installation. The leakage can cause the upper boom to extend without operator activating the control if valve o\-ring seal fails.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10129227-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10129227-0001.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- 2013 to 2017 TEREX AERIAL DEVICES

JSON: [/v1/bulletins/10129227](/v1/bulletins/10129227)

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