Mack U (1973) – 77V173000

Defect Description For Recall

The Flex Blade Fans On The Involved Vehicles May Develop Cracks In The Laminated Stiffener As A Result Of Fatigue During Operation. If Such A Condition Exists And The Cracks Go Undetected, Continued Operation Could Cause Pieces Of The Stiffener To Break Off.

Make Of Vehicle

MACK

Model Of Vehicle

U

Year

1973

Recall Campaign Number

77V173000

Component Description

Engine And Engine Cooling:Cooling System:Fan

Effect Of Defect

Fix Defect

Dealer Will Replace The Original Fan With A Steel Fixed Blade Fan, Free Of Charge.

Vehicle Manufacturer

Mack Trucks, Incorporated

Start Of Manufacture

End Of Manufacture

Type Of Vehicle Recall

V

Number Affected

48000

Date Owners Notified

19780323

Initiated By

Odi

Responsible Manufacturer

Mack Trucks, Inc.

Date Report Received

19771012

Make Campaign Number

Part Number

Federal Motor Vehicle Safety Standard