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NHTSA Office of Defects Investigation

Engineering Analysis EA09-008: Horton Fan Hub Failures

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA09-008 on May 29, 2009, the day it closed Preliminary Evaluation PE09-002, whose summary cites it, and closed it on August 27, 2010. NHTSA's investigations file lists 24 models from 2 makes for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA09-008 (also written EA09008)
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 August 27, 2010
Opened
Closed
Vehicle or equipment manufacturer
PACCAR Incorporated
Component
Engine and Engine Cooling — Cooling System — Fan
Vehicles and equipment
24 models from 2 makes, including the Kenworth T300 and Kenworth T600

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 EA09-008.

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

PACCAR is conducting an Owner Notification Program (ONP) for select vehicles within the subject and peer populations.

The ONP are attached to the closing report and can be found in the NHTSA Technical Service Bulletin (TSB) database. (TSB: 10033585, 10033584)See Closing report for investigation details.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA09-008. 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.

Kenworth

All Kenworth recalls

Peterbilt

All Peterbilt 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 EA09-008

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.