Data integrity (1 - 10 of 60 items)
Aviation Safety: FAA's Risk-Based Oversight for Repair Stations Could Benefit from Additional Airline Data and Performance Metrics [Reissued on September 2, 2016]
GAO-16-679: Published: Jul 28, 2016. Publicly Released: Jul 28, 2016.
The extent to which U.S. airlines contract out aircraft maintenance to domestic and foreign repair stations (as opposed to performing maintenance in-house) has remained relatively steady from 2010 through 2014. GAO's analysis of Bureau of Transportation Statistics (BTS) data for that period (the most recent available) showed that 28 selected U.S. airlines' annual contracted maintenance spending ra...
Aviation Forecasting: FAA Should Implement Additional Risk-Management Practices in Forecasting Aviation Activity
GAO-16-210: Published: Mar 8, 2016. Publicly Released: Mar 16, 2016.
Both of the Federal Aviation Administration's (FAA) annual activity forecasts—the National Aerospace Forecast (Aerospace) and airport-level Terminal Area Forecast (TAF)—have consistently overestimated aviation activity since 2004 and 2010, respectively, and have been less accurate the further out they forecast. For example, for Aerospace passenger enplanement forecasts made between fiscal year...
Federally Leased Vehicles: Agencies Should Strengthen Assessment Processes to Reduce Underutilized Vehicles
GAO-16-136: Published: Jan 14, 2016. Publicly Released: Jan 14, 2016.
The General Services Administration (GSA) provides guidance to agencies to assist them in reducing underutilized leased vehicles. This guidance can be written (such as bulletins) or advice from GSA's fleet service representatives (FSR) to agency fleet managers. FSRs assist agencies with leasing issues, and GSA expects its FSRs to communicate with fleet managers about vehicle utilization at least a...
Surface Transportation Security: TSA Has Taken Steps Designed to Develop Processes for Sharing and Analyzing Information and to Improve Rail Security Incident Reporting
GAO-15-205T: Published: Sep 17, 2015. Publicly Released: Sep 17, 2015.
In June 2014, GAO found that the Transportation Security Administration (TSA) did not have a systematic process for incorporating stakeholder feedback to improve security-related information sharing and recommended that TSA systematically document and incorporate stakeholder feedback. TSA concurred with this recommendation and, in April 2015, TSA developed a standard operating procedure to help en...
U.S. Merchant Marine: Maritime Administration Should Assess Potential Mariner-Training Needs
GAO-14-212: Published: Jan 31, 2014. Publicly Released: Jan 31, 2014.
Maritime training--for domestic waterway and oceangoing operations--is available through many public and private entities. These entities include the U.S. Merchant Marine Academy (USMMA), state maritime academies, community colleges, union-affiliated schools, and about 230 private sector schools. Private companies also provide training to their mariner employees, including training to operate the...
Cargo Tank Trucks: Improved Incident Data and Regulatory Analysis Would Better Inform Decisions about Safety Risks
GAO-13-721: Published: Sep 11, 2013. Publicly Released: Sep 11, 2013.
The Department of Transportation's (DOT) Pipeline and Hazardous Materials Safety Administration's (PHMSA) incident data cannot be used to reliably identify risks from incidents involving collisions with and spills from tank trucks' bottom lines ("wetlines") because the incidents are not specifically identified in PHMSA's database and the data contain inaccuracies. PHMSA requires carriers to report...
Pipeline Safety: Better Data and Guidance Could Improve Operators' Responses to Incidents
GAO-13-284T: Published: Jan 28, 2013. Publicly Released: Jan 28, 2013.
Numerous variables--some of which are under operators' control--influence the ability of transmission pipeline operators to respond to incidents. For example, the location of response personnel and the use of manual or automated valves can affect the amount of time it takes for operators to respond to incidents. However, because the advantages and disadvantages of installing an automated valve are...
Pipeline Safety: Better Data and Guidance Needed to Improve Pipeline Operator Incident Response
GAO-13-168: Published: Jan 23, 2013. Publicly Released: Jan 23, 2013.
The Department of Transportation's (DOT) Pipeline and Hazardous Materials Safety Administration (PHMSA) has an opportunity to improve the ability of pipeline operators to respond to incidents by developing a performance-based approach for incident response times. The ability of transmission pipeline operators to respond to incidents--such as leaks and ruptures--is affected by numerous variables, s...
Passenger Rail Security: Consistent Incident Reporting and Analysis Needed to Achieve Program Objectives
GAO-13-20: Published: Dec 19, 2012. Publicly Released: Dec 19, 2012.
The Transportation Security Administration (TSA) has inconsistently overseen and enforced its rail security incident reporting requirement because it does not have guidance and its oversight mechanisms are limited, leading to considerable variation in the types and number of incidents reported. Though some variation is expected in the number and type of incidents reported because of differences in...
General Aviation Safety: Additional FAA Efforts Could Help Identify and Mitigate Safety Risks
GAO-13-36: Published: Oct 4, 2012. Publicly Released: Oct 4, 2012.
The number of nonfatal and fatal general aviation accidents decreased from 1999 through 2011; more than 200 fatal accidents occurred in each of those years. Airplanesparticularly single-engine piston airplanesflying personal operations were most often involved in accidents. Most general aviation accidents are attributed to pilot error and involved a loss of aircraft control. Some segments of t...