We are aware some users are experiencing video buffering issues and are actively working toward a solution.

Video Library

Items per page:

Lightning Safety

Safety Message

Lightning strikes the U.S. about 25 million times each year, killing an average of 49 people. Many more are struck and suffer severe injuries. Many of us may carry inaccurate, preconceived notions concerning what to do when lightning strikes. This month, Steve Cash, director of Safety and Mission Assurance at Marshall Space Flight Center, debunks the myths and shares the hard facts of lightning strikes. He also addresses what we can do to protect ourselves.

The Role of "Heart" in Heart Disease

Safety Message

As leaders, we often say, "Take care of your people." Some of the most serious risks we face pay no attention to workplace boundaries. This month, Grant Watson, director of Safety and Mission Assurance at Langley Research Center, shares his personal message of how his parents’ heart disease changed how he regarded his own heart health. May his message encourage you to reflect on your own story and on lowering heart disease risk.

Dissenting Opinions

Safety Message

After a mishap or major disaster, it’s natural to ask what we could have done better had we only known about a defect or flaw sooner. Sometimes those who see something before the test begins or the vehicle launches speak up. Sometimes they’re heard. NASA has experienced mishaps and tragedies where individuals within and outside of our agency had technically sound differing views that were never heard by decision-makers.

Although NASA’s process for submitting a dissenting opinion is outlined in NPD 1000.0B, NPR 7120.5E which includes the NASA Spaceflight Program and Project Management Handbook, Program and Project Managers should be actively seeking out dissenting opinions and addressing them in a clear, open and timely manner. This presentation will focus on the dissenting opinion process, identifying what a dissent is and how the process should unfold. Please take some time to thoughtfully reflect on this presentation; after all, it could be one of us whose choice to speak up could save lives at some point.

Administrative Controls for Fire Safety Hazards

Safety Message

In the last half of 2015, three separate fire incidents occurred at NASA's Glenn Research Center. All three fires were immediately detected by operators or fire alarm systems and extinguished. Damage was assessed and regular operations resumed within a few days of each incident. Two fires were classified as Close Calls and one was classified as a Type D Mishap.

While response to each fire was excellent, such incidents give us the chance to refine preventive administrative controls by establishing pre-fire plans that address pre-operation checks, maintenance services and rapid detection of incipient fires. Changing weather and holiday leave periods can heighten risk of fire occurrence, while lowering the odds of on-scene employee detection. Some administrative fire prevention controls can even be applied informally to increase home safety. Engineering preventive barriers and firefighting controls are of course essential in the workplace, but administrative controls are important as well.

NASA Aviation Safety: Procurement Quality Assurance

Safety Message

Procurement of aircraft parts without specific knowledge and expertise is a significant risk. Each center that operates aircraft currently handles parts acquisition differently, without a standard set of agency-wide processes or procedures. By consolidating aircraft parts purchases at the NASA Shared Services Center (NSSC), we have the ability to standardize the acquisition of quality aircraft parts and services.

However, this is not without its own challenges. While some flying centers will see no impact since they acquire aircraft parts via existing maintenance contracts, other centers possess greater potential issues. Centers no longer have closed-loop systems to ensure that the aircraft parts they are purchasing are the parts that they receive. Non-flying centers may acquire Unmanned Aerial Systems subject to the same risks. If this situation is not addressed properly, we could be increasing risk to our aircraft fleet. Combining the knowledge of aircraft maintenance experts from each center with the NSSC may be the solution to providing parts and supplier assurance.

Workplace Safety on ISS

Safety Message

Like any other NASA facility, the International Space Station (ISS) requires regular maintenance and upkeep. Inside the ISS’s dynamic environment, regular cleaning and routine inspections prevent both health and hardware problems. The crew cleans essential systems, work stations and emergency equipment to ensure readiness for use at a moment’s notice. Although the crew is constantly attentive, every six months a crewmember films the entire cabin interior and egress path of the U.S. Orbital Segment so that engineers on the ground can evaluate conditions from a fresh point of view.

If a new perspective is beneficial for the ISS crew, imagine how helpful it can be for you.

Immediately Dangerous to Life and Health: The Cost of Failing To Identify and Mitigate IDLH Hazards

Safety Message

On Nov. 15, 2014, four workers died and a fifth was hospitalized after exposure to a 24,000-pound methyl mercaptan leak at a DuPont plant in La Porte, Texas. The leak occurred in a building that was positioned over chemical plant piping, which included a failed valve. The Chemical Safety Board investigation later found that the valve had no documented function and served no manufacturing purpose. The enclosed office space was not designed to be a confined space, and hazard assessments did not identify Immediately Dangerous to Life and Health (IDLH) risks within the space. However, the workers were overcome by toxic gas while doing normal work there.

This month we look at the DuPont La Porte incident and three other incidents where workers were overcome by toxic or oxygen-displacing gases while performing routine work. In each of these situations, the risk of personal exposure to IDLH atmospheres was either not identified or underestimated by management or the workers operating in those environments.

Using Ionizers for Electrostatic Discharge Control

Ionizers can neutralize the charge on insulators near sensitive mission hardware before and during work. Watch this video to find out how ionizers help prevent damage caused by Electrostatic Discharge and how they should be tested and maintained.

Electrostatic Discharge Overview

Damage from Electrostatic Discharge (ESD) can put an entire mission at risk. Just a tiny, imperceptible shock can harm sensitive hardware. This video explains how ESD damage occurs and describes prevention techniques.

Testing Flight Hardware

Safety Message

On May 7, 2007, the composite reflector for the Aquarius spacecraft underwent acoustic testing at the Jet Propulsion Laboratory Environmental Test Chamber. The reflector was damaged by an anomalous test procedure stemming from a deviation from the normal test procedure. Additionally, the test control system software was not up-to-date, and there was no acoustic subject matter expert present during the test. Although Aquarius launched and successfully completed its mission, the test deviation and lack of diligence resulted in a Class A Mishap.

Due diligence is necessary when engineering, operating and maintaining state-of-the-art flight hardware. We test as much as possible in order to assure high rates of success across all of our programs and projects. Testing itself may be viewed as a measure of diligence — perhaps even a luxury during periods of low funding. However, it is necessary that we are thorough and conscientious in our testing procedures as well.

Items per page:

More Videos

Featured Video

Feature Videos

Learn about the Office of Safety and Mission Assurance, its disciplines and programs, and much more in these feature videos.

Safety Message

Safety Messages

Guest speakers deliver the monthly Safety Messages in these live recordings.

Knowledge Bytes

Knowledge Bytes

These short videos provide expert insight on various safety and mission assurance topics.

Policy Bytes

Policy Bytes

Policy owners explain recent changes to policies and standards in these short videos.

Event Videos

Event Videos

Video captures of live events on Safety and Mission Assurance topics.