# Service bulletin SB 446B

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: 10116258
- Published by NHTSA: 2017\-08\-25
- Manufacturer's number: SB 446B
- Manufacturer's date: 2017\-06\-19
- NHTSA component: EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

This Service Bulletin supercedes Service Bulletin 446 in its entirety and informs affected customers that model year 2011\-2017 MCI J4500 model coaches may exhibit signs of premature wear or cracks in the A/C compressor support tube, which may cause the drive belt for the A/C compressor to fail or slip off the pulley, resulting in loss of function of the air conditioning, and that MCI will remedy the affected coaches at no cost to the customers.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10116258-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10116258-0001.pdf)

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

## Components

Equipment and accessories, Heating and air conditioning

## Vehicles listed

- 2012 to 2017 MCI J4500

JSON: [/v1/bulletins/10116258](/v1/bulletins/10116258)

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