Downloaded from https://www.everyspec.com ADS-79D-HDBK CONTENTS PARAGRAPH PAGE B.5.3.2 Accuracy ..............................................................................................................57 B.5.4 Validation of structural usage monitoring system (SUMS) ................................58 B.5.4.1 Introduction .........................................................................................................58 B.5.4.2 Development of the structural monitoring system ..............................................58 B.5.4.3 Design of the structural monitoring system .........................................................59 B.5.4.4 Parameter identification and algorithms development ........................................59 B.5.4.5 Scripted flights .....................................................................................................59 B.5.4.6 Unscripted flights ................................................................................................60 B.5.4.7 Flight testing ........................................................................................................60 B.5.4.8 Comparison of loads ............................................................................................60 B.5.4.9 Comparison of damage fraction ..........................................................................60 APPENDIX C STRUCTURAL HEALTH AND LOADS MONITORING ...............................61 C.1 SCOPE .................................................................................................................61 C.2 REFERENCES AND APPLICABLE DOCUMENTS .......................................61 C.2.1 References ...........................................................................................................61 C.2.2 Other Government and Non-Government guidance documents .........................61 C.2.3 Government documents .......................................................................................62 C.2.4 Non-Government Documents ..............................................................................62 C.3 DEFINITIONS ....................................................................................................62 C.4 GENERAL GUIDANCE .....................................................................................63 C.4.1 Aircraft mission performance impact ..................................................................63 C.4.2 Airworthiness qualification guidance ..................................................................63 C.5 DETAIL GUIDANCE .........................................................................................63 C.5.1 Monitoring system ...............................................................................................63 C.5.2 Integrated NDI methods ......................................................................................64 C.5.2.1 Example of the implementation of an Integrated NDI method ...........................65 C.5.2.2 Example Inspection Interval Adjustment ............................................................66 C.5.3 Load monitoring ..................................................................................................69 C.5.4 Load estimation ...................................................................................................70 C.5.5 Limitations on use of vibration measurements for structural health monitoring .........................................................................70 APPENDIX D MINIMAL GUIDANCE FOR DETERMINING CIs/HIs FOR PROPULSION SYSTEMS .....................................................................71 D.1 SCOPE .................................................................................................................71 D.2 REFERENCES AND APPLICABLE DOCUMENTS .......................................71 D.2.1 References ...........................................................................................................71 D.2.2 Applicable Documents ........................................................................................71 D.2.2.1 Government documents .......................................................................................71 D.2.3 Process Description .............................................................................................72 D.3 PROCESS GUIDANCE ......................................................................................72 vi