3D Aero HPT blade

航空

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航空

2002M52P04/P05 Blade
Shank cracking - 4 liberation events , last event Oct 03’
1. Monitoring high-cycle operators 11 to 12.5K cycles
• Southwest 42 or 59 engines complete – remaining completed by Jul 04’
• Xaimen 3 engines at 12K , working the plan, spare engines concern
• SAS has 5 engines at 11K, working along with P09 sampling plan
• TAP w/8 engines approaching 12K – a lot of work completed, need closure
• Eurowings has 2 engines 11K – working negotiations
2. Investigating returned blade sets–11200 blades inspected ~ 6% confirmed cracked
3. 361 engine sets remain in the field – 308 CNY(1 or more) and 53 Mad (thin coating)
Root TE cracking – no field events
1. Operators continue the great job of BSI’ing for this condition
2. Of 263 engine sets of blades removed – 147 removed for TE cracks, (75) 7B & (72) 5BP
3. Of the 361 engine sets in the field – 36 being monitored with TE root carcks
Transition Zone Cracking – no field events
1. Investigating blade from ESN874 Ford BBJ – 9779 cycles with a thru wall crack CV side
#1 cavity
2. Total events – 2 field engines with thru wall cracks with 9600 –9700 cycles, 1-CC,1-CV
CFM56-7
CFM56-5BP
3D Aero HPT blade
3D Aero HPT blade
2002M52P09/P11 Blade
Shank Cracking – no liberation events
1. PCB approval to sample 7 high-cycle engines – CNY coated
2. SAS has agreed on three –7’s, high cycle 12217, begins April 04’
3. Southwest, GOL, Jet Airways,Braathens and Air Europa other possible
-7 engine customer sampling – high cycle 11K
4. 1558 ( –7) engines contain P09/P11 blades, 326 are CNY coated
5. 5B/P customer Air France will pull 2 engines, timing TBD, now at 10.5K
6. Looking at other high-cycle 5B/P operators Croatia and Aer Lingus –
only 10K
7. 7 out of the top 10 highest cycle 5B/P engines are Mad coated blades
8. 735 5B/P engines contain P09/P11 blades, 143 are CNY coated
9. Analysis of~ 2400 blades removed for other reason, found 1% cracked
3D Aero HPT blade
1975M10P03 Blade
Introduction into production engines this month – 10 sets on-hand
1. New shank geometry – addressesType 1(shank cracking) and TZ cracking
like the M10P01 blade
2. Thin shank coating same as the M52P14 and M10P01
3. N5- chemistry to eliminate Yttrium from casting – YtO2 @ airfoil separations
4. Like M52P09/11/14 has TE root cracking fix - CV platform holes
5. SB in process , timing based on P01 inventory depletion date (May 04’)