All brake systems default to manual function when something goes haywire with the electronic enhancements, which is why the brakes seem to work just fine. Slam on the brakes hard and I bet they lock up, which is not what should happen. More From Popular Mechanics. The likely culprit is one of the ABS wheel-speed sensors, a pinky-size part that detects the teeth of the tone ring.
Unless you are recording actual release detection results at least every 30 days and maintaining records for at least 5 years, you are not doing leak detection.  Keep all records of calibration, maintenance, and repair of your release detection equipment for at least 5 years.eep These O&M Records  Keep your manual tank gauging records for at least 5 years. Unless you are recording actual release detection results at least weekly and every 30 days and maintaining records for at least 5 years, you are not doing leak detection right.
The following time table will help you determine how many years tax records must be kept: Three yearsâ Anyone owing additional taxes must keep their records for three years. If you have filed a claim for a credit or tax refund after you have filed your return you must keep records for three years from the date you filed your return or the date you paid taxes. Four yearsâ Employment tax records must be kept for a minimum of four years from the date the tax was due or paid. Six years-If you have filed a tax return the did not include reportable income (more than 25% of the gross income reported) you must keep your tax records for six years. Seven yearsâ When a claim has been filed for a loss from securities or bad debt, all records must be kept for seven years.