SIERRA MOUNTAIN AVIATION, INC. is a other support activities for air transportation employer in GRASS VALLEY, CA. Federal records show 1 OSHA inspection with 5 violations and $11,235 in penalties. 1 workplace fatality investigation on record. All data sourced from public federal enforcement records.

Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: April 29, 2026.

SIERRA MOUNTAIN AVIATION, INC.

13308 NEVADA CITY AVE., GRASS VALLEY, CA, 95945

488190 — Top companies in Other Support Activities for Air Transportation

Federal Enforcement

OSHA inspection

5 violations

$11,235 in penalties

1 fatalities

Industry Benchmark

Industry Avg TRIR

4.1

Industry Avg DART

2.7

Industry rates from BLS SOII 2024. Self-reported rates from OSHA ITA.

OSHA Inspections

OSHA Violations

Total Penalties

$11,235

Trend

STABLE

WHD Cases

Back Wages Owed

Confidence

MEDIUM

SVEP Flag

Data Insights

History Span

8 years

Last Activity

8yr ago

Inspection Rate

0.1/yr

Violation Rate

0.6/yr

Violation Severity Mix

40% serious$2,247 avg per violation$11,235 avg per inspection

Active Agencies:

OSHA$11,235 total across all agencies

Inspection Breakdown

Complaint and accident-triggered inspections are stronger risk signals than routine planned inspections.

Violation rate: 100% of inspections

Peer Comparison

87%

Worse than most peers

vs 246 employers in same industry & state

Fewer violationsMore violations

Penalty Percentile

84%

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Inspection History

No inspection records found.

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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.

Frequently Asked Questions

What is SIERRA MOUNTAIN AVIATION, INC.'s OSHA violation history?: SIERRA MOUNTAIN AVIATION, INC. has 1 OSHA inspection on record with 5 violations and $11,235 in total penalties.
How does SIERRA MOUNTAIN AVIATION, INC.'s safety record compare to its industry?: SIERRA MOUNTAIN AVIATION, INC. operates in the other support activities for air transportation industry. The industry average Total Recordable Incident Rate (TRIR) is 4.1.
Has SIERRA MOUNTAIN AVIATION, INC. had any workplace fatalities?: Yes. Federal records show 1 fatality investigation involving SIERRA MOUNTAIN AVIATION, INC..