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Roadside Inspection 88357974

Roadside inspection on Jul 9, 2026 in California • Carrier: MASON TRUCKING INC (USDOT 3716164) • Vehicle: KENWORTH TRUCK TRACTOR

Vehicle OOS Driver: OK CVSA L1
Units Inspected
2
Total Violations
5
OOS Violations
1
20% of violations
Inspection Level
Level 1

Inspection Details

Key facts from the FMCSA inspection record.

Inspection #:
88357974
Date:
Jul 9, 2026
State:
California
Type:
—
Units inspected:
2
Violations:
5
HazMat:
No
Inspection site:
CASTAIC IF
Carrier (USDOT):
MASON TRUCKING INC (3716164)
Operating authority:
MC1354089
Vehicle:
KENWORTH T680 TRUCK TRACTOR
Plate:
DF06HM (FL)

What this inspection means

The vehicle was placed out of service at this inspection.

Cited issues fall mainly under Vehicle Maintenance and Unsafe Driving, with a combined severity weight of 28.

Compared to the median Level 1 inspection nationwide in 2026, this is a more severe than typical result.

Severity context

How mild, normal, or severe was this inspection compared to its carrier, state, and station?

vs this carrier's typical
5
Heavier than carrier average
Carrier averages 3.14 violations per inspection across 14 prior records
vs Level 1 median in California
5
Heavier than median (1)
Median of 111,629 Level 1 inspections in California during 2026
vs typical at CASTAIC IF
5
Heavier than station median (0)
Median of 13,626 inspections at this station in the trailing 12 months

How this compares

National peer benchmarks for inspections at this level.

Violations vs Level 1 median
5
4 more than the median (1)
Compared to 463,846 Level 1 inspections nationwide in 2026
OOS at this inspection
Yes
Cohort OOS rate: 28.9%
Out-of-service rate across all Level 1 inspections in 2026
Carrier clean-inspection rate (12 mo)
13%
8 inspections in the trailing 12 months
Computed from this carrier's inspection history

Carrier trend at this moment

How active was this carrier's inspection record around this date?

Prior 30 days
0
No inspections in this window
Prior 90 days
1
3 violations · 1 OOS · 3.00 per inspection
Prior 365 days
8
32 violations · 2 OOS · 4.00 per inspection
Honest opinion

An out-of-service order is one of the most consequential outcomes a roadside inspection can produce — the most heavily-weighted OOS citation here was 393.45D-BHTBS (Air Brake - Hose/tubing with a bulge/swelling when air pressure is applied, severity weight 4). (393.45D-BHTBS)

Units Inspected

2 unit(s) covered by this inspection.

Seq Type VIN Plate Make Model Year OOS
1 TRUCK TRACTOR 1XKYDP9X6LJ394977 FL DF06HM KENWORTH T680 2020 —
2 FULL TRAILER 1UYVS2533L6865904 FL QB03LZ UTILITY TRAILER MANUFACTURER Utility Trailer Manufacturer 2020 —

Violations Cited

5 violation(s) recorded against this inspection.

Code Description Severity Wt BASIC OOS
392.2-SLLED State/Local Laws - Excessive dimension (width/height/length). 8 Unsafe Driving —
392.2-SLLEQP State/Local Laws - Violation of state and local law - Equipment violation. (Must have corresponding state statute or regulation) 8 Unsafe Driving —
393.45D-BHTBS Air Brake - Hose/tubing with a bulge/swelling when air pressure is applied 4 Vehicle Maintenance OOS
393.55D2-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 2001 for towed vehicle. 4 Vehicle Maintenance —
393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998. 4 Vehicle Maintenance —

Violation categories (BASICs)

Federal behavior-analysis-and-safety-improvement buckets for the cited violations.

Nearby inspections (same carrier, ±60 days)

Other times this carrier was inspected around the same date.

Inspection Date State Level Location Violations OOS
88841101 Aug 27, 2026 TX L1 TX 0 —
88458772 Jul 19, 2026 LA L3 — 0 —
88029198 Jun 2, 2026 CA L3 DESERT HILLS IF 3 OOS

Other inspections of these vehicles

History for the VINs recorded on this inspection.

Inspection Date State Level VIN OOS
88999081 Sep 15, 2026 MS L3 1XKYDP9X6LJ394977 —
87389493 Mar 24, 2026 AZ L3 1UYVS2533L6865904 —
87060285 Feb 16, 2026 LA L2 1UYVS2533L6865904 OOS
86767930 Dec 23, 2025 TX L3 1UYVS2533L6865904 —
86371822 Nov 18, 2025 MS L1 1UYVS2533L6865904 —
85646900 Aug 27, 2025 WA L1 1UYVS2533L6865904 —
84077550 Mar 7, 2025 ME L3 1UYVS2533L6865904 —
83853291 Feb 11, 2025 CA L3 1UYVS2533L6865904 —

Carrier booking & risk tools

Check booking and risk signals for USDOT 3716164 — tools open pre-filled.

Related records

Recent activity at CASTAIC IF

Other carriers inspected here recently.

Inspection Date Carrier Violations OOS
89171662 Oct 3, 2026 WILLIAMS TANK LINES LLC 0 —
89171512 Oct 3, 2026 ALJBORY 0 —
89171492 Oct 3, 2026 MEL XPRESS INC 0 —
89171113 Oct 3, 2026 YOLO TRANSPORT LLC 0 —
89171103 Oct 3, 2026 WESTERN GRAIN & MILLING INC 0 —
89170983 Oct 3, 2026 MATTHIAS TRUCKING INC 1 —