# Service bulletin ATC2216

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: 10166215
- Published by NHTSA: 2019\-10\-21
- Manufacturer's number: ATC2216
- Manufacturer's date: 2019\-09\-27
- NHTSA component: EQUIPMENT; ENGINE

## NHTSA's summary

This Account Team Coverage is being issued to address potential System Out NOx sensor failures due to contamination and/or water impingement on certain B6.7 CM2350 B121B engines installed in Nova Bus applications. This field action authorizes certified repair locations to use the published service procedure to implement a drain hole in the system out NOx cup.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10166215-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10166215-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- CUMMINS B6.7

JSON: [/v1/bulletins/10166215](/v1/bulletins/10166215)

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