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NHTSA Office of Defects Investigation

Engineering Analysis EA04-014: SCHOOL BUS LIGHTING FAILURES

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA04-014 on June 9, 2004 and closed it on December 20, 2004. NHTSA's investigations file lists 10 models from 2 makes for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA04-014 (also written EA04014)
Investigation type
Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
Status
Closed December 20, 2004
Opened
Closed
Vehicle or equipment manufacturers
THOMAS BUILT BUSES, INC.; FREIGHTLINER LLC
Components
Exterior Lighting — Headlights — Switch; Interior Lighting
Vehicles and equipment
10 models from 2 makes, including the Thomas MVP EF and Thomas Bus

A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA04-014.

try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.

SEE ATTACHED FOUR PAGE TECHNICAL REPORT FOR DETAILS.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA04-014. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.

Thomas

All Thomas recalls

Thomas Built Buses

  • Thomas Built Buses MVP-EF

All Thomas Built Buses recalls

What an NHTSA investigation is

NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.

An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.

Free VIN check: decode a VIN to see its year, make and model.

Sources

NHTSA's investigation record for EA04-014

Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.