# ~ Xtre m eAi r Gm bH , H arzstr . 2 , D- 39 444 He c kl i n ge n 

### SB-2013 - 00 8 Tel: +49 39267 60999 0, Fax: +49 39267 60999 20 Ausgabe : A.03 www.xtremeair.de in fo@xt remeair.de DOA- Nr.: EASA.21J.360 

### Se rvi ce Bull etin SB -2 01 3 -008 Date : 25 . 10 . 2013 

# MAN DATORY Subject: Engine Mount Aircraft model affected: XA42 , XA41 Serial numbers affected : All aircraft are affected up to (and including) serial numbers 07 for XA41 and 123 for XA42. Background : A crack was reported by an operator in a weld seam between the lower left l anding gear attachment bearing and the lower engine mount to firewall attachment-plate . Further investigation showed that all engine mounts from a specific supplier may be affected . Classificati on : P ri o rity 1 - Safety Compliance: Inspect ion mandatory every 10 flights. Replacement of engine mount before next aerobatic flight. Material : Engine Moun t XA42 - 7120-151 up to (and including) manufactu rer's seria l number 036 Weight and Balance: n .a . Accomplishment instructions : All aerobatic flights are prohibited until rep l acement of the engine mount. In spect i o n : 1 . Remove the engine cowling. 2. Visually inspect all engine mount welds for cracks . Note : Particularly the welds between the lower landing gear attachment bearing and the lower engine mount to firewall attachment-plate are susceptible to cracking in aircraft operated regularly from rough airfields. Figure 1 and 2 . 3. When in doubt , perform a dye penetrant inspection , refer to AC 43 . 13- 1B . 4 . I f cracks a re found, replace the engine mount before next flight. 5 . Reinstall the engine cowling . 6. Repeat the above inspection after every 10 flights . T ermin ati n g acti o n : 1. Replace th e affected eng i ne mount with Engi ne Mount PI N XA42-7120-151 provided by XtremeAir. Note : XtremeAir will provide free of charge one new Engine Mount P/N XA42 -7 120-151 with t he latest amendment to each operator of an affected aircraft. 2 . Advise XtremeAir (airworthiness@xtremeair.de) , about the accomplishment of this task, stating the aircraft serial number, and return the ol d engine mount to XtremeAir . Replaces Service Bulletin No. I Date : SB-2013-008 A.02 27-09-2013 Page 1 /3

# ~ DOA-N r.: EASA .21 J . 360 Approval : XtremeAir Gmb H , Harzstr. 2 , D-39444 He ck lingen 

### SB-2013-008 Tel: +49 39267 60999 0 , Fa x: +49 39267 60999 20 Ausgabe : A.03 www .xtre mea l r. de info@xt remeal r. de 

### Service Bulletin SB-2013-008 Date : 25 . 10 .2013

The technical information contained in this document has been approved under the au t hority of Design Organisation EASA.21J . 360 .

Fi :,: urc I : \\ '<' ld i n :.: S(' arm an·a "lr c r ·c**~lra** all c rrl io rr i,; rrccrl c rlrlurin g i ns p cc l inn

Replaces Service Bulletin No . I Date : SB-2013-008 A.02 27-09-2013 Page 2 /3

# ~ Xtr eme Air GmbH , Harzstr.2, D -39444 Hecklingen 

### SB -2013-008 Tel : +49 39267 60999 0 , Fax: +49 39267 60999 20 Ausgabe : A.03 www.xtre mealr . de info@xtremealr.de D OA - N r. : EASA .21J .360 

### Service Bulletin SB-2013-008 Date : 25 . 10 .2013

l"i J.:urc 2: \\ elding sc anh area'' here C\ t ra attention;, needed durin!! in ,pcction

Replaces SeNice Bulletin No . I Date: SB- 2013-008 A.02 27-09-2013 Page 3/3