1、Lessons Learned Entry: 0936Lesson Info:a71 Lesson Number: 0936a71 Lesson Date: 2001-03-14a71 Submitting Organization: KSCa71 Submitted by: Thomas DrakeSubject: Use of Commercial/Industry Terminology Description of Driving Event: During the Procurement and Fabrication of the MPLM Support Vehicle, a s
2、pecification was written for the truck tractor portion of the vehicle. An industry term Gross Combined Weight (GCW) was used and further defined in the specification as the combined weight of the trailer and associated equipment. This is contradictory to the industry term, which is the combined weig
3、ht of the truck tractor and trailer. During proofload of the equipment it was noted that the proofload weight was not adequate. The vendor picked up on the industry term GCW and assumed a 50,000 lb. GCW. This is a combined tractor weight of 12,000 lb. and trailer weight of 38,000 lb. The intent of t
4、he specification was to have a 50,000 lb. trailer and associated equipment weight plus a truck tractor capable of pulling it which is approximately 12,000 lb. This would have resulted in a 24% undersized proofload.Lesson(s) Learned: Use caution when using industry terms in a specification.Recommenda
5、tion(s): In specifications for products ensure that terms used are consistent with the industry that is implementing the specification. Also, do not use an industry term and give it a definition that is contradictory to the understanded industry meaning.Evidence of Recurrence Control Effectiveness:
6、N/ADocuments Related to Lesson: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AMission Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Ground Equipmenta71 TransportationAdditional Info: Approval Info: a71 Approval Date: 2001-05-17a71 Approval Name: Eric Raynora71 Approval Organization: QSa71 Approval Phone Number: 202-358-4738Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
