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Service bulletin SB-31-1

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 id10036668
Published by NHTSA2011-04-08
Manufacturer's numberSB-31-1
Manufacturer's date2010-12-01
NHTSA componentSERVICE BRAKES, AIR; SUSPENSION

NHTSA's summary

THOMAS BUILT: SIX PIECE BOLTED SERVICE CROSSMEMBERS ARE AN IMPROVED, MORE DURABLE SERVICE REPLACEMENT FOR FIVE-PIECE WELDED CROSSMEMBERS, ALLIGATOR CROSSMEMBERS, AND C CHANNEL WELDED CROSSMEMBERS USED WITH STEEL FRAME RAILS. NO MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Brakes, Suspension

Vehicles listed
THOMAS SAF-T-LINER C22004 to 2005
THOMAS BUILT BUSES SAF-T-LINER C22010 to 2011

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