AAON INC.
2425 S. YUKON AVE., TULSA, OK 74107
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Jun 9, 2025#348298910Jun 9, 2025Referral (C) · Records Only scope, Safety#348298910$00 viol.0 violations$0 in penalties
Inspection #348298910
Dates
- Opened
- Jun 9, 2025
- Closing Conference Date
- Jun 9, 2025
- Closed
- Jan 13, 2026
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 2,700
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Mar 22, 2018#343035986Mar 22, 2018Complaint (B) · Partial scope, Health#343035986$12,1964 viol.4 violations$12,196 in penalties
Inspection #343035986
Dates
- Opened
- Mar 22, 2018
- Closing Conference Date
- Mar 22, 2018
- Final Order
- Oct 4, 2018
- Closed
- Nov 5, 2018
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 1,690
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 4
- Violation Types
- 4 serious
- Initial Penalties
- $20,325
- Penalties on Record
- $12,196
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (4 of 4 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 D01 | Serious | 1 | 15 | $5,543 | $3,326 | Oct 4, 2018 | - | Oct 4, 2018 |
| 01001B | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 F01 | Serious | 1 | 15 | $0 | $0 | Oct 4, 2018 | - | Oct 4, 2018 |
| 01002 | 1910.134 Respiratory Protection OSHA citation code: 19100134 L01 | Serious | 1 | 15 | $7,391 | $4,435 | Oct 4, 2018 | - | Oct 4, 2018 |
| 01003 | 1910.138 Hand Protection OSHA citation code: 19100138 A | Serious | 1 | 15 | $7,391 | $4,435 | Oct 4, 2018 | - | Oct 4, 2018 |
Mar 2, 2005#308061860Mar 2, 2005Planned (H) · Complete scope, Safety#308061860$8,5507 viol.7 violations$8,550 in penalties
Inspection #308061860
Dates
- Opened
- Mar 2, 2005
- Closing Conference Date
- Mar 29, 2005
- Closed
- May 13, 2005
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 749
Violations and Penalties
- Total Violations
- 7
- Violation Types
- 7 serious
- Initial Penalties
- $14,400
- Penalties on Record
- $8,550
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (7 of 7 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.23 Ladders OSHA citation code: 19100023 C01 | Serious | 1 | 1 | $2,250 | $1,500 | Apr 22, 2005 | - | - |
| 01002A | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C04 I | Serious | 1 | 24 | $4,500 | $3,000 | Apr 22, 2005 | - | - |
| 01002B | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C05 IID | Serious | 1 | 34 | $0 | $0 | May 6, 2005 | - | - |
| 01002C | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C06 I | Serious | 1 | 24 | $0 | $0 | May 21, 2005 | - | - |
| 01002D | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C07 I | Serious | 1 | 24 | $0 | $0 | May 21, 2005 | - | - |
| 01003 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A03 II | Serious | 1 | 24 | $6,300 | $3,150 | Apr 22, 2005 | - | - |
| 01004 | 1910.1200 Hazard Communication OSHA citation code: 19101200 H01 | Serious | 1 | 1 | $1,350 | $900 | May 21, 2005 | - | - |
Sep 10, 2001#303643704Sep 10, 2001Follow-Up (F) · Partial scope, Safety#303643704$00 viol.0 violations$0 in penalties
Inspection #303643704
Dates
- Opened
- Sep 10, 2001
- Closing Conference Date
- Sep 10, 2001
- Closed
- Oct 29, 2001
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 850
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- Not classified in OSHA's inspection record.
Follow-Up Inspection: This inspection record is categorized as a follow-up inspection in the DOL OSHA enforcement data. Follow-up inspections are used by OSHA after earlier enforcement activity and can be used to check later compliance status.
Oct 23, 2000#303639132Oct 23, 2000Planned (H) · Complete scope, Safety#303639132$21,25034 viol.34 violations$21,250 in penalties
Inspection #303639132
Dates
- Opened
- Oct 23, 2000
- Closing Conference Date
- Nov 1, 2000
- Closed
- Oct 29, 2001
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 850
Violations and Penalties
- Total Violations
- 34
- Violation Types
- 26 serious, 8 other-than-serious
- Initial Penalties
- $44,550
- Penalties on Record
- $21,250
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (7 of 34 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.23 Ladders OSHA citation code: 19100023 C01 | Serious | 2 | 5 | $4,500 | $2,250 | May 9, 2001 | - | - |
| 01002A | 1910.107 Spray Finishing Using Flammable and Combustible Materials OSHA citation code: 19100107 B05 IV | Serious | 1 | 4 | $2,250 | $1,125 | May 19, 2001 | - | - |
| 01002B | 1910.107 Spray Finishing Using Flammable and Combustible Materials OSHA citation code: 19100107 E02 | Serious | 4 | 3 | $0 | $0 | May 9, 2001 | - | - |
| 01002C | 1910.107 Spray Finishing Using Flammable and Combustible Materials OSHA citation code: 19100107 E04 | Serious | 2 | 3 | $0 | $0 | May 9, 2001 | - | - |
| 01002D | 1910.107 Spray Finishing Using Flammable and Combustible Materials OSHA citation code: 19100107 E09 | Serious | 1 | 1 | $0 | $0 | May 9, 2001 | - | - |
| 01002E | 1910.107 Spray Finishing Using Flammable and Combustible Materials OSHA citation code: 19100107 G02 | Serious | 1 | 4 | $0 | $0 | May 9, 2001 | - | - |
| 01002F | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 C02 XII | Serious | 1 | 4 | $0 | $0 | Apr 19, 2001 | - | - |
Showing the 7 violations listed first by citation identifier. This inspection has 34 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
May 9, 1989#106645682May 9, 1989Complaint (B) · Partial scope, Health#106645682$08 viol.8 violations$0 in penalties
Inspection #106645682
Dates
- Opened
- May 9, 1989
- Closing Conference Date
- May 11, 1989
- Closed
- Mar 19, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 130
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 8
- Violation Types
- 8 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Chemical Exposure Sampling14 substances sampled
Air monitoring samples collected by OSHA during this inspection. Results grouped by substance.
| Substance | Samples | Result Range | Unit |
|---|---|---|---|
| Antimony and Compounds (as Sb) | 2 | 0 | mg/m³ |
| Beryllium and Beryllium Compounds (as Be) | 2 | 0 | mg/m³ |
| Cadmium Fume (as Cd) | 2 | 0 | mg/m³ |
| Chromium, Metal and Insoluble Salts | 2 | 0 | mg/m³ |
| Cobalt, Metal, Dust and Fume (as Co) | 2 | 0 | mg/m³ |
| Copper Fume (as Cu) | 2 | 0 | mg/m³ |
| Iron Oxide Fume | 2 | 0 - 0.3798 | mg/m³ |
| Lead, Inorganic (as Pb) | 2 | 0 | mg/m³ |
| Manganese Fume (as Mn) | 2 | 0 - 0.0031 | mg/m³ |
| Molybdenum (as Mo), Insoluble Compounds (Total Dust) | 1 | 0 | mg/m³ |
| Nickel, Metal and Insoluble compounds (as Ni) | 2 | 0 | mg/m³ |
| Particulates not otherwise regulated (Respirable Fraction) | 1 | 0 | mg/m³ |
| Vanadium fume (as V2O5) | 2 | 0 | mg/m³ |
| Zinc Oxide Fume | 2 | 0 - 0.1366 | mg/m³ |
Violations
Violation list (7 of 8 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1903.2 Posting of Notices; Availability of the Act, Regulations and Applicable Standards OSHA citation code: 19030002 A01 | Other | 1 | 130 | $0 | $0 | Jun 3, 1989 | - | - |
| 01002 | 1904.2 Partial Exemption for Establishments in Certain Industries OSHA citation code: 19040002 A | Other | 1 | 130 | $0 | $0 | Jun 5, 1989 | - | - |
| 01003 | 1910.20 Access to Employee Exposure and Medical Records OSHA citation code: 19100020 G02 | Other | 1 | 130 | $0 | $0 | Jun 3, 1989 | - | - |
| 01004 | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 C01 | Other | 2 | 2 | $0 | $0 | Jun 30, 1989 | - | - |
| 01005 | 1910.95 Occupational Noise Exposure OSHA citation code: 19100095 D01 | Other | 2 | 2 | $0 | $0 | Jun 3, 1989 | - | - |
| 01006 | 1910.134 Respiratory Protection OSHA citation code: 19100134 B01 | Other | 1 | 4 | $0 | $0 | Jun 30, 1989 | - | - |
| 01007 | 1910.1200 Hazard Communication OSHA citation code: 19101200 E01 | Other | 1 | 130 | $0 | $0 | Jun 30, 1989 | - | - |
Showing the 7 violations listed first by citation identifier. This inspection has 8 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
May 9, 1989#106645542May 9, 1989Complaint (B) · Complete scope, Safety#106645542$5607 viol.7 violations$560 in penalties
Inspection #106645542
Dates
- Opened
- May 9, 1989
- Closing Conference Date
- May 9, 1989
- Closed
- Sep 10, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 130
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 7
- Violation Types
- 5 serious, 2 other-than-serious
- Initial Penalties
- $560
- Penalties on Record
- $560
- Site Address
- 2425 S. Yukon Ave., Tulsa, OK 74107
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (7 of 7 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 A | Serious | 1 | 1 | $70 | $70 | Jun 1, 1989 | - | - |
| 01002 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 1 | 4 | $140 | $140 | Jun 2, 1989 | - | - |
| 01003 | 1910.215 Abrasive Wheel Machinery OSHA citation code: 19100215 B09 | Serious | 1 | 1 | $70 | $70 | May 31, 1989 | - | - |
| 01004A | 1910.217 Mechanical Power Presses OSHA citation code: 19100217 B07 X | Serious | 1 | 2 | $280 | $280 | Jun 9, 1989 | - | - |
| 01004B | 1910.217 Mechanical Power Presses OSHA citation code: 19100217 C01 I | Serious | 4 | 7 | $0 | $0 | Jun 9, 1989 | - | - |
| 02001 | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 L | Other | 1 | 12 | $0 | $0 | Jun 14, 1989 | - | - |
| 02002 | 1910.217 Mechanical Power Presses OSHA citation code: 19100217 E01 I | Other | 4 | 7 | $0 | $0 | Jun 4, 1989 | - | - |
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Source: OSHA chemical exposure sampling data (OSHA Information System). P = Personal (worker breathing zone), A = Area (general air). Rows marked QC are analytical quality control measurements, not chemical exposures. OSHA PEL (Permissible Exposure Limit) values from the OSHA Occupational Chemical Database, matched via IMIS substance code (analyte code) (exact government key).
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
7 inspections, 1989 to 2025. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.