Aircraft Transmission System Check Appendices
Collection of appendices linked to aircraft transmission system checks including slat transmission system outcomes, typical transmission shaft damages, TSU condition check values recording, and assessment flowchart.
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Appendix 1 : Slat transmission system DVI outcome Appendix linked to AOT A27P016-20 Rev 02 Chapters 4.2.1.1 & 4.2.1.2 & 4.2.1.3 & 4.2.2.2 & 4.2.2.3 Slat PCU information at the date of the check Check date (DD/MM/YYYY) MSN P/N S/N FH FC DVI Requirement on subject A/C: DVI required? (Tick the right box) YES: YES: YES: NO in LH wing in RH wing in LH & RH wings - Determinationof the P/N of all slat transmission shafts outboard of S08: Configuration A Configuration B OR (if not possible) Configuration C Configuration D BS: Build Standard (*) Only if all shafts BS P/N 4784AXXXX-02 are located outboard of the pylon area - Results of inspection: Relevant Information Report Build Standard configuration (A, B, C or D) LH wing: RH wing: Observations of Detailed Visual inspection (DVI)
Appendix 2: Typical transmission shafts damages Appendix linked to AOT A27P016-20 Rev 02 Chapter 4.2.1.2 & 4.2.1.3 Healthy transmission shaft with straight splines Failed transmission shaft with spirally deformed splines
Appendix 3: TSU Condition Check values Recording & Assessment Appendix linked to AOT A27P016-20 Rev 02 Chapters 4.2.2.2 & 4.2.2.3 Aircraft information at the date of the check Check date (DD/MM/YYYY) A/C MSN registration Slat PCU information at the date of the check P/N S/N FH FC LH TSU Health check data & Decision LH TSU health check outcome (Tick the right box) Max Dev Inc Trq (Nm) LVDT Replace Slat PCU within 16FC Repeat 350FC Repeat 150FC Replace Slat PCU before next flight LH SLAT 1 LH SLAT 2 RH TSU Health check data & Decision RH TSU health check outcome (Tick the right box) Max Dev Inc Trq (Nm) LVDT Replace Slat PCU within 16FC Repeat 350FC Repeat 150FC Replace Slat PCU before next flight RH SLAT 1 RH SLAT 2
Appendix 4: TSU Condition Check Flowchart Appendix linked to AOT A27P016-20 Rev 02 Chapter 4.2.2.2 & 4.2.2.3
