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Service bulletin FDM-TSIB-020

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 id10188189
Published by NHTSA2021-03-04
Manufacturer's numberFDM-TSIB-020
Manufacturer's date2021-02-15
NHTSA componentEQUIPMENT; STRUCTURE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

This bulletin provides instruction for drilling a drain hole near the base of the left and right superstructure supports to allow any water that enters the support to drain. Trapped water in the superstructure support can freeze in cold weather causing the support to rupture at the base. Current production superstructure supports now have a drain hole.

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

Body and frame, Equipment and accessories, Labels and manuals

Vehicles listed
MCNEILUS MCNEILUS1981 to 1985

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