2007年4月23日 · The FAA proposes to adopt a new airworthiness directive (AD) for CFM International, S.A. CFM56-7B Series Turbofan Engines. This proposed AD would require revising the Airworthiness Limitations Section (ALS) in the Engine Shop Manual (ESM) and the air carrier's approved continuous airworthiness...

CFM SB’s 72-0568 and 72-0579 provide the inspection details for the repetitive on-wing eddy current inspections. SB effectivity is dependent upon TRF part number. AD is applicable only to part numbers in SB 72-0579 . What does it look like when we scan across the weld? Rejectable signal = 1.5 divisions. Houston, we have a problem!

2015年10月2日 · We propose to adopt a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-5B series turbofan engines. This proposed AD was prompted by a corrected lifing analysis by the engine manufacturer that shows the need to identify an initial and repetitive inspection threshold...

Before the issue of the CFM56-7B Engine Shop Manual (ESM) Temporary Revisions (TR) 05-0097, 05-0098, and 05-0099 on September 19, 2008, the concerned LPT rear frames were neither subject to a life limit nor to a mandatory inspection.

2015年9月15日 · We are adopting a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-7B and CFM56-3 turbofan engines. This AD was prompted by a report of an uncommanded in-flight shutdown (IFSD) on a CFM CFM56-7B engine following rupture of the 73-tooth gearshaft located in the engine accessory gearbox (AGB).

CFM SB’s 72-0568 and 72-0579 provide the inspection details for the repetitive on-wing eddy current inspections. SB effectivity is dependent upon TRF part number. AD is applicable only to part numbers in SB 72-0579 . What does it look like when we scan across the weld? Rejectable signal = 1.5 divisions. Houston, we have a problem!

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2007年4月23日 · TRFs. We have been monitoring CFM’s revised life analysis progress since February 2005. CFM International provided to us the November 15, 2006 revision to the ESM to introduce mandatory inspections of the TRF. CFM International has been using a damage tolerant lifing approach, based on an FAA approved methodology for

摘要：CFM56-5B发动机振动大故障率比较高，常常会出现配平情况，文章主要介绍发动机振动出现的原因，对振动原理及配平做了介绍和分析，根据实际工作经验做出总结，以便在今后的工作中能够快速、准确地排除故障。 当实际振动大于咨询值时，ECAM页面上N1和N2振动指示将会闪烁，提示机组发动机振动超过标准，按照空客AMM 71-00-00-710-009，N1振动指示小于4，N2小于4.25，发动机没有异常的声音，机组也没有感觉到结构振动，振动可以接受，航线可以正常放 …

(1) This Service Bulletin affects all Turbine Rear Frames (TRF) P/N 338-102-907-0 and 338-102-908-0 installed on CFM56-5B engine model. B. Description This Service Bulletin gives instructions for on wing or in shop inspection of the TRF struts in order to increase the life of the TRF. The three mount struts of the TRF have to be inspected.