Slide 1: C-130 Center wing joint planarity implications
C-130 Center wing joint planarity implications Kostas Kriatsiotis Hellenic Aerospace Industry Product Development, Dept Mgr +30-22620-52234 kkriatsi@haicorp.com
Slide 2: Background
Background During implementation of TCTO 1C-130-1882 inspection of wing joint area for cracking and loose wing shims was performed on June 2009 to the C- 130B A/C , S/N 300 Shims were found installed on the follow nodes: ► L/H 5,6,7,10,11,28 ►R/H 1,2,3,4,5,6,7,8,9,10,11,12
Slide 3: Inspection Results / Disposition
Inspection Results / Disposition • The inspection found these shims deteriorated and one shim at node R/H No1 completely destroyed and dropped down. • Disposition from TCG engineering was as follows: ► Recurring inspection per TCTO 1882 every 200 flight hours until next Depot input.
Slide 4: Inspection Results / Disposition
Inspection Results / Disposition ► Report any rainbow fitting cracks or major deterioration of multiple shims to TCG. At next Depot input, perform optical alignment of wing joint and mill affected nodes per TO 1C- 130A-3
Slide 5: Rework Procedure
Rework Procedure • The A/C C 130B S/N 300 has been inducted in HAI premises. The outer wings have been removed as well as all the existing shims. • Planarity checks of center and outer wings have been performed using laser tracker (Leica series). • General planarity check requirement: The rainbow an
Slide 6: Rework Procedure (Cont'd)
Rework Procedure (Cont’d) • Results of the recorded measurements per T.O 1C-130A-3 requirements of the center wing joint planes are presented in the following slides. • The measurements for the RH outer wing were within T.O limits (under the .005 gap requirement).
Slide 7: R/H Center Wing Measurements After Induction
R/H CENTER WING MEASUREMENTS AFTER INDUCTION
Slide 8: R/H Center Wing Measurements Final
R/H CENTER WING MEASUREMENTS FINAL
Slide 9: Conclusions
Conclusions L/H wing measurements(planarity check) shown that no shims were required despite the fact that shims were found on nodes 5,6,7,10,11,28.The measurements were found under the +/-0.005 gap requirement. No cracks were found after NDI per TO 1C- 130A-3 on both LH & RH
Slide 10: Conclusions (Cont'd)
Conclusions (Cont’d) RH outer wing measurements found to be within TO limits (under the +/- 0.005 gap requirement). R/H center wing measurements shown that a considerable deviation from the T.O gap requirement were found and several planarity checks followed by node milling were performed in order
Slide 11: C-130B S/N
C-130B S/N 300