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FMCSA - Federal Motor Carrier Safety Adminstration

CSA - Compliance, Safety, Accountability

Working Together for Safety.


SMS - Safety Measurement System SMS - Safety Measurement System

MAYFLOWER TRANSIT LLC

AERO MAYFLOWER TRANSIT COMPANY

  • 125563
  • 1 PREMIER DRIVE
    FENTON, MO 63026
  • 769
  • 1,472
  • 777

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

Vehicle Maintenance

More Info

On-Road Performance

5.28 How is the measure calculated?

Safety Event Group: 101-500 relevant vehicle inspections

Investigation Results

No Acute/Critical Violations Discovered

Expand Graph

Carrier Measure Over Time

  • Trends

This graph displays a carrier’s measure based on 24 months of on-road performance. Zero indicates the best performance. To see how the measure is calculated click here. To see how the measure relates to percentile click here. Expand for more information.

  • 8
  • 6
  • 4
  • 2
  • 0
  • -2
  • Dec 26
  • Jan 30
  • Feb 27
  • Mar 27
  • Apr 24
  • May 15
  • 2025
  • 2026
  • 2026
  • 2026
  • 2026
  • 2026
  Dec 26 2025 Jan 30 2026 Feb 27 2026 Mar 27 2026 Apr 24 2026 May 15 2026
Measure 4.82 4.80 4.88 5.17 5.22 5.28
Measure 0 0 0 0 0 0

Violation Summary

Vehicle Maint. Violations: 434

Violations Description # Violations # OOS Violations Violation Severity Weight
393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS 46 44 8
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 17 0 4
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 15 0 4
393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured 12 0 4
393.45D-B Air Brake - Audible air leak at a proper connection 11 0 4
393.75(a)(3) Tire-flat and/or audible air leak 11 11 8
393.75A3-TAOLTIS Tires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS 9 9 8
393.78A-WS Washers - Inoperative washing system. 9 0 1
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination 9 9 0
393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear 8 0 4
393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance 8 0 1
393.9 Inoperable Required Lamp 8 0 2
393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. 8 0 2
393.95A4-EEUS Emergency Equipment - Fire Extinguishers - unsecured 8 0 2
393.60(c) Windshield - Damaged or Discolored 7 0 1
396.5B-L Lubrication - Oil or grease leak 7 0 3
393.45B2-BHTD Air Brake - Hose/tubing damage into the outer reinforcement ply. 6 6 4
393.9A-LCL Lighting - Clearance lamp(s) inoperative 6 0 2
393.9A-LLPL Lighting - License plate lamp inoperative 6 0 2
396.3A1-BALAC Brake - Audible air leak from a brake chamber 6 0 4
393.55(e) No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 5 0 4
393.95(a) No/discharged/unsecured fire extinguisher 5 0 2
393.9A-HLLH Lighting - Headlamp(s) fail to operate on low and high beam 5 0 6
393.9A-LBL Lighting - Backup lamp inoperative 5 0 6
393.9A-LFTSI Lighting - Front - Turn signal - inoperative 5 0 6
393.9A-LIL Lighting - Identification lamp(s) inoperative 5 0 2
393.9TS Inoperative turn signal 5 1 6
396.5B-HWSL Hubs - Wheel seal leaking 5 2 2
392.2-SLLMF State/Local Laws - Wheel (mud) flaps missing or defective 4 0 1
393.45D-BAAL Air Brake - Audible air leak at other than a proper connection 4 4 4
393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear 4 0 4
393.55D1-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 1997 and each single unit CMV on or after 1998. 4 0 4
393.55D2-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 2001 for towed vehicle. 4 0 4
393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper 4 0 2
393.9A-LRLI Lighting - Tail lamp - Any inoperative 4 0 6
393.9A-LSLI Lighting - Stop lamps - Any inoperative. 4 0 6
393.9A-LTSI Lighting - Turn signal - Any inoperative on the rearmost vehicle. 4 4 6
393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 3 0 3
393.45B2PC Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit 3 0 4
393.47A-BCLMBD Drum Brake - Cracked/loose/missing lining/pad 3 0 4
393.48A-BIBD Drum Brake - Inoperative other than a steering axle 3 0 4
393.75A1-TEPBM Tires - All others - Exposed ply or belt material in tread or sidewall area 3 0 8
393.78 Wipers - Inoperative / missing / damaged wipers 3 0 1
393.9A-LHWS Lighting - Hazard warning signal(s) inoperative 3 0 6
393.9H Inoperable head lamps 3 0 6
396.17C-PI Operating a CMV without documentation of a periodic inspection 3 0 4
396.3A1-ALBV Air Brake - Any leak from a brake valve 3 0 4
393.11 No or defective lighting devices or reflective material as required 2 0 3
393.11A1-LCHL Lighting - Lamps improper color, height, location. 2 0 6
393.11A1-LCL Lighting - Clearance lamp(s) missing 2 0 2
393.11B-CSLRR Conspicuity Systems - Trailers, lower rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 2 0 3
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 2 0 3
393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 2 0 3
393.23-LEU Lighting - All electrical systems on towed vehicle(s) inoperative due to no electrical connection (e.g., unplugged or loose pigtail) 2 2 2
393.45(b)(2) Brake hose or tubing chafing and/or kinking 2 0 4
393.45(d) Brake connections with leaks or constrictions 2 0 4
393.48(a) Inoperative/defective brakes 2 1 4
393.51C-BNVLAWD Air Brake - No visual low air warning device manufactured on or after 1975. 2 0 4
393.55C1-B Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault. 2 0 4
393.55C2-B Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates a fault. 2 0 4
393.67(c)(7) Fuel tank fill pipe cap missing 2 0 1
393.75(a)(1) Tire-ply or belt material exposed 2 2 8
393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth 2 0 8
393.81-H Horn - Inoperative or defective 2 0 3
393.9(a) Inoperative Brake Lamps 2 1 6
393.9A-LHLI Lighting - Headlamp(s) - Any inoperative 2 0 6
393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on 2 2 6
393.9A-LTSIR Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit 2 0 6
396.3A1-F Fuel - Dripping leak. 2 2 3
396.5(b) Oil and/or grease leak 2 0 3
392.9(a)(2) Failing to secure vehicle equipment 1 1 1
392.9A2-C Cargo - Vehicle components or dunnage not secured 1 1 1
393.100C-C Cargo - Cargo not secured against shifting 1 0 1
393.11A1-CSURR Conspicuity Systems - Truck tractor, upper rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 1 0 3
393.11A1-LLPL Lighting - License plate lamp missing 1 0 2
393.11A1-LSML Lighting - Side marker lamp(s) missing 1 0 2
393.11B-CSURR Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993 1 0 3
393.11LR No Lower rear retroreflective sheeting or reflex reflective materials as required for vehicles manufactured after December 1993 1 0 3
393.11RT Retroreflective material not affixed as required for trailers manufactured after December 1993 1 0 3
393.19 Inoperative/Defective Hazard Warning Lamp 1 0 6
393.201B-FR Frame - Cab or body mounts loose/broken/missing 1 0 2
393.203(c) Hood not securely fastened 1 0 2
393.203A-CBP Cab and Body Parts - Door missing/broken 1 0 2
393.205(a) Wheel/rim cracked or broken 1 1 2
393.205(c) Wheel fasteners loose and/or missing 1 0 2
393.205C-WRAWFLMIB Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken. 1 0 2
393.207(a) Axle positioning parts defective/missing 1 1 7
393.207(f) Air suspension pressure loss 1 1 7
393.207A-STBW Suspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component can be moved by hand along the axis of the component 1 1 7
393.207F-SDAS Suspension - Deflated air suspension 1 1 7
393.207F-SLAS Suspension - Leaking 3 PSI in 5 minutes 1 0 7
393.209E-STPSD Steering - Power steering components loose/broken 1 0 6
393.43A-TPV Air Brake - Inoperable or missing tractor protection valve 1 1 4
393.43D-BIPBS Brake - Inoperative or missing trailer Spring Brake 1 0 4
393.43D-BSB Brake - More than 25% of the spring brakes are inoperative 1 1 4
393.45 Brake tubing and hose adequacy 1 0 4
393.45A-BHTBS Air Brake - Hose/tubing with a bulge/swelling when air pressure is applied 1 1 4
393.45B2-B Air brake - Hose/tubing damaged or not secured 1 0 4
393.45B2UV Brake Hose or Tubing Chafing and/or Kinking Under Vehicle 1 0 4
393.45D-BHDB Air Brake - Damaged by heat or broken 1 1 4
393.45DLPC Brake Connections with Leaks - Connection to Power Unit 1 0 4
393.45DLUV Brake Connections with Leaks Under Vehicle 1 0 4
393.45PC Brake Tubing and Hose Adequacy - Connections to Power Unit 1 1 4
393.45UV Brake Tubing and Hose Adequacy Under Vehicle 1 1 4
393.47(a) Inadequate brakes for safe stopping - Brake Lining condition 1 0 4
393.47A-BCFSAD-SA Air Disc Brake - Contaminated friction surface on a steering axle 1 1 4
393.47A-BCFSBD Drum Brake - Contaminated friction surface 1 0 4
393.47F-B Brake - Wedge type brake(s) out-of-adjustment 1 0 4
393.48A-BIAD Air Disc Brake - Inoperative other than a steering axle 1 0 4
393.48A-BMBCBD Drum Brake - Missing/broken component(s) 1 0 4
393.55(c)(1) Truck Tractor manufactured on or after March 1, 1997 not equipped with an antilock brake system 1 0 4
393.55(c)(2) CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. 1 0 4
393.55(d)(2) CMV manufactured on/after 3/1/2001 not equipped with ABS malfunction circuit / lamp from towed vehicle in cab 1 0 4
393.60EWS Windshield - Obstructed 1 0 1
393.67C7V-F Fuel - Missing/improper filler cap 1 0 1
393.75(a) Flat tire or fabric exposed 1 1 8
393.75(a)(4) Tire-cut exposing ply and/or belt material 1 1 8
393.75(c) Tire-other tread depth less than 2/32 of inch measured in a major tread groove 1 0 8
393.75B-OOS Tire-front tread depth less than 2/32 of inch on a major tread groove 1 1 8
393.75C-OOS Tire-other tread depth less than 1/32 of inch measured in 2 adjacent major tread grooves 3 separate locations 8 inches apart 1 0 8
393.76 Sleeper berth requirement violations 1 0 3
393.83(g) Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment 1 0 1
393.88 Television/video display device - Improperly located 1 0 2
393.95A4-EENA Emergency Equipment - Fire Extinguishers - not readily accessible 1 0 2
393.9A-LSML Lighting - Side marker lamp(s) inoperative 1 0 2
393.9T Inoperable tail lamp 1 0 6
396.3(a)(1) Brake - Hole in Spring Brake Housing 1 1 4
396.3(a)(1) Inspection, repair and maintenance of parts and accessories 1 0 2
396.3A1-ALATR Air Brake - Any leak from an air tank reservoir. 1 0 4
396.3A1-BALR Air Brake - Fails air loss rate test 1 1 4
396.3A1-HCM Hubs - Bearing cap, plug or filler plug missing or broken 1 1 2
396.3A1-LLEAK A liquid fuel system with a dripping leak at any point 1 1 3
396.3A1T Tires (general) 1 0 8
396.5-HL Hubs - Leaking hub 1 1 2
396.9D2-FTF Failing to correct the violation(s)/defect(s) noted on the roadside inspection report 1 0 4

Inspection History

Vehicle Inspections: 415

Please select to view your Inspection History. You can also sort your data by Date, Report Number, Vehicle Type, etc.

(or)
Report Vehicle Measure = Sum of the Total Weight (TotW) Sum of the Time Weight (TiW)
Inspection Date Number State Plate Number Plate State Type Severity Weight
(SW)
Time Weight
(TiW)
Total Weight
(TotW)
Sum of measure weights Sum of measure weights 2,062 715 3,778
TotW TiW
=
3,778 715
= 5.28
More Info

*** The sum of all violation severity weights (violation weight + out-of-service) for this inspection has been capped at 30.

Investigation Results

Vehicle Maint. Acute/Critical Violations: 0

This carrier has no Vehicle Maintenance Acute/Critical Violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

  • 11/9/2022 (Compliance Review)
  • 777
    • 414
    • 363
  • : 27

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Inspection Selection System

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

Enforcement Cases

(Six years as of 06/29/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

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