1、Lessons Learned Entry: 0565Lesson Info:a71 Lesson Number: 0565a71 Lesson Date: 1997-09-11a71 Submitting Organization: SSCa71 Submitted by: Matthew McGownSubject: Mobile Crane/Preventive Maintenance Description of Driving Event: The mobile crane was holding a 20 foot section of 36“ diameter pipe whil
2、e a section of handrail was being removed. Removal of the handrail was necessary in order to remove the section of pipe. While the crane was in operation, one of the cranes outriggers “leaked down“, and caused a brief uncontrolled movement of the pipe. No damage occurred to the equipment, and proper
3、ty surrounding the crane. Most importantly, there were no injuries to personnel. The crane was not equipped with a “Positive Mechanical Block (PIN)“ system. Subsequently, it was found that the crane had not been proof load tested for over a year.Lesson(s) Learned: 1. Failure to thoroughly inspect th
4、e mobile crane prior to use may result in damage to equipment, property, and loss of life.2. Failure to provide scheduled maintenance activities leads to the deterioration of equipment.Recommendation(s): 1. Inspect all mobile cranes to verify that each unit has a “Positive Mechanical Block (PIN)“ in
5、 place before usage.2. Paint proof test due dates on the side of all mobile crane. This will facilitate confirmation of certification due dates.3. Establish a daily log to document visual inspection of certification due date.4. Establish monthly recall list of all lifting devices one month prior to
6、proof test expiration.5. Ensure safety department continues to monitor all lifting devices regularly for current proof load certification.6. Remind all relevant SSC personnel of the importance for preventive maintenance/certification Provided by IHSNot for ResaleNo reproduction or networking permitt
7、ed without license from IHS-,-,-and following established procedures.7. Ensure that appropriate levels of heavy equipment are available to support a variety of site-wide projects.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): N/AAdditional Ke
8、y Phrase(s): a71 Lifting Devicesa71 LogisticsAdditional Info: Approval Info: a71 Approval Date: 1997-09-10a71 Approval Name: Mark McCalmana71 Approval Organization: QA00a71 Approval Phone Number: 601-688-2150Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
