Safety Measurement System - Inspection MD0327C00754 (U.S. DOT# 451422)

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United States Department of Transportation

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Use of SMS Data/Information

FAST Act of 2015:

Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier has received an UNSATISFACTORY safety rating under part 385 of title 49, Code of Federal Regulations, or has otherwise been ordered to discontinue operations by the Federal Motor Carrier Safety Administration, it is authorized to operate on the Nation's roadways.

Safety Measurement System:

The data in the Safety Measurement System (SMS) is performance data used by the Agency and Enforcement Community. A symbol, based on that data, indicates that FMCSA may prioritize a motor carrier for further monitoring.

The symbol is not intended to imply any federal safety rating of the carrier pursuant to 49 USC 31144. Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier in the SMS has received an UNSATISFACTORY safety rating pursuant to 49 CFR Part 385, or has otherwise been ordered to discontinue operations by the FMCSA, it is authorized to operate on the nation's roadways.

Motor carrier safety ratings are available at http://safer.fmcsa.dot.gov and motor carrier licensing and insurance status are available at http://li-public.fmcsa.dot.gov/.

Detailed Inspection Report as of 3/27/2026

Carrier Information

Carrier Name: R L Mcnair And Son Llc
U.S. DOT#: 451422
Carrier Address: 9225 Waynesboro Pike
Emmitsburg, MD 21727

Time/Location

Report #: MD0327C00754
Report State: MD
State: MD
Date: 2/11/2026
Start Time: 0800
End Time: 0844
Level: I. Full
Facility: Fixed Site
Post Crash Inspection: No
Hazmat Placard Required: No

Vehicle Information

Unit	Type	Make	Plate State	Plate Number	VIN
1	Straight Truck	PETERBILT	MD	286ED39	1NP5XBTX52N581726

Carrier Violations

Vio Code	Section	Unit	OOS	Description	Included in SMS	BASIC	Reason Not Included in SMS
393.209D-STBSP	393.209(d)	1	Yes	Steering - Ball And Socket Joint Has Movement Greater Than 1/8 Inch Measured With Hand Pressure	Yes	Vehicle Maint.
393.45D-B	393.45(d)	1	No	Air Brake - Audible Air Leak At A Proper Connection	Yes	Vehicle Maint.
393.47E	393.47(e)	1	No	Brake Out Of Adjustment - Roto, Clamp (Short & Long), Dd-3, Or Bolt	Yes	Vehicle Maint.
393.53B-B	393.53(b)	1	No	Air Brake - Cmv Manufactured On Or After 10/20/1994 Has An Automatic Airbrake Adjustment System That Fails To Compensate For Wear	Yes	Vehicle Maint.
396.5B-L	396.5(b)	1	No	Lubrication - Oil Or Grease Leak	Yes	Vehicle Maint.