CFM56-7 EEC Reliability CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 2 CFM56-7B EEC Field Reliability MTBUR since January 2001 8,500 9,000 9,500 10,000 10,500 11,000 11,500 12,000 Jan-01 Feb-01 Mar-01 Apr-01 May-01 Jun-01 Jul-01 Aug-01 Sep-01 Oct-01 Nov-01 Dec-01 MTBUR-12 CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 3 CFM56-7B EEC Field Reliability EEC Findings 157 66 30 37 9 0 0 20 40 60 80 100 120 140 160 180 PSS IOM DPM PSM FPA ECU INTERNAL Since Jan-01 CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 4 Improvements • PSS SB 73-0065 issued in 8/2001 to replace 73-043 on all non-pmux EEC in the field shown in pictures to the right • BAE Systems will offer 73-0065 at a discounted price • EEC with 73-043 implemented by BAE will be warranted at 15,000 flight hours or 5 years whichever occurs first (Vs standard warranty of 1000 flight hours or 1 year) If the flex fails during the warranty, BAE will incorporate 73-0065 free of charge • Recommend that any Non-pmux EEC’s that did not have 73-043 implemented (S/N 4100-5500) have 73-0065 implemented • Those that have 73-043 type design (S/N 5501-6749) only have 73-0065 done by attrition • IOM SIPEX chip- Vendor process improved and failures random • DPM - random failures, no trend CFM56-7B EEC Field Reliability作者: show616 时间: 2011-4-13 09:43:57
