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## Occupational Safety and Health Administration

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### Inspection Detail

**Case Status: OPEN**

**Note:** The following inspection has not been indicated as closed. Please be aware that the information shown may change, e.g. violations may be added or deleted.  For open cases, in which a citation has been issued, the citation information may not be available for 5 days following receipt by the employer for Federal inspections or for 30 days following receipt by the employer for State inspections.

#### **Inspection: 1533274.015 - National Technical Systems, Inc.**

**Inspection Information - Office: Ca Santa Ana District Office**

 

**Inspection Nr**

**Report ID**

**Date Opened**

----

**Site Address**: 			   National Technical Systems, Inc.			   1534 E. Valencia DriveFullerton, CA 92831

**Mailing Address**: 			   2125 E. Katella Ave. Suite 250, Anaheim, CA 92806

**Union Status**: NonUnion

**SIC**:

**NAICS**: 541380/Testing Laboratories

----

**Inspection Type**: Fat/Cat

**Scope**: Partial

**Advanced Notice**: N

**Ownership**: Private

**Safety/Health**: Safety

**Close Conference**: 10/22/2021

**Emphasis**:

**Case Closed**: 

----

**Case Status: OPEN**

#### **Investigation Summary**

**Investigation Nr**

**Event**

At 9:05 a.m. on May 27, 2021, an employee who worked as a contract Engineering Associate for a testing laboratory died from undetermined causes related to an explosion and fire, possibly smoke inhalation. The employee worked for a contract provider of environmental simulation testing, inspection, and certification services who operated amplifiers, oscilloscopes, spectrum analyzers, signal generators, and pulse voltage meters. The employee was in the process of testing a C-130 Modular Airborne Fire Fighting Systems (MAFFS) part. The unspecified part was owned by another entity and was placed within the contractor's test chambers at which time an Emission of Radio Frequency (RF) Energy test was scheduled. The employee had been working with Coworker #2 and Coworker #3, both whose occupations were unknown, and their roles not specified in the narrative. An explosion occured during the testing involving a compressor and resulting in a fire and heavy smoke. The area was evacuated and the Fire Department instructed everyone not to return.

**Keywords:**compressor, energized, explosion, fire, inspecting, inspection, radiation, smoke, smoke inhalation, testing, testing lab
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