AC 145-9A

Advisory circular · Guide for Developing and Evaluating Repair Station and Quality Control Manuals

Approved
October 6, 2017
Last reviewed
September 11, 2024
Family
AC 145-9 · 3 versions
Revision
A
14 CFR parts
145
Cited by
1 AD
14 CFR sections
§ 145.207§ 145.211

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

Show pages 73–84

Appendix B B-12

8. How will the repair station process records received from contractors?

9. Are procedures for distribution and storage of FAA Form 337 included?

10. How are records of any special inspections, such as hydrostatic tests, functional tests, and so forth, processed?

B.14 Calibration of Measuring and Test Equipment.

1. Who (by title) is responsible for the calibration system?

2. What is the basis for the test intervals, such as manufacturer, standard industry practice, and so forth?

3. Is the calibration technique recommended by the manufacturer or standard industry practice?

4. How is calibrated equipment identified?

5. Is the calibration technique documented?

6. What procedure is used to change calibration intervals?

7. Are actual calibration results recorded to justify changes to calibration intervals?

8. Do the procedures ensure that calibration is traceable to the National Institute of Standards and Technology (NIST), the manufacturer, or an acceptable foreign or international standard?

9. Do the procedures ensure that equipment is removed from service and calibrated when due?

10. Do the procedures include recall of any product inspected if the measuring equipment was out of tolerance when the work was performed?

11. How is equipment that is not submitted for calibration when it is due handled

(e.g., when it is lost or overdue)?

12. How is calibration recorded? Are the actual results at each test point recorded?

13. If automated test equipment is used, is it included in the calibration system?

14. Does the procedure describe the information on the calibration label of the equipment?

15. How is equipment that must be calibrated before each use identified and recorded?

16. How is equipment that does not require calibration identified?

17. Do the procedures address the acceptance of new precision test equipment into the inventory?

18. Do the procedures address calibration performed by an outside contractor?

19. Do the procedures address calibration of employee-owned tools?

Appendix B B-13

20. Who (by title) is responsible for records of calibration received from outside contractors?

21. Do the procedures address calibration requirements, standards, documentation, and traceability of tools that the repair station has leased?

22. Do the procedures describe the review of the contracted calibration facility’s records for traceability, accuracy, and acceptability?

23. If the facility includes an engine or auxiliary power unit (APU) test cell, does the manual include procedures for correlation, calibration, and limitations, if any?

24. If NDT is performed, does the manual include procedures for certification of company-manufactured NDT inspection standards (if any are used)?

B.15 Taking Corrective Action on Deficiencies.

1. Who (by title) is responsible for the program?

2. How is the root cause of the problem determined?

3. Who (by title) will initiate corrective action?

4. How much time will be allowed to implement the corrective action?

5. Who (by title) will perform a followup audit of the corrective action to ensure that it was effective?

6. What records will be maintained of the cause and corrective action taken?

Advisory Circular Feedback Form If you find an error in this AC, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by contacting the Flight Standards Directives Management Officer at 9-AWA-AFS-140-Directives@faa.gov.

Subject: AC 145-9A, Guide for Developing and Evaluating Repair Station and Quality Control Manuals Date: _____________________ Please check all appropriate line items:

An error (procedural or typographical) has been noted in paragraph ____________ on page _______.

Recommend paragraph _____________ on page __________ be changed as follows:

______________________________________________________________________ ______________________________________________________________________ In a future change to this AC, please cover the following subject:

(Briefly describe what you want added.)

______________________________________________________________________ ______________________________________________________________________ Other comments:

______________________________________________________________________ ______________________________________________________________________ I would like to discuss the above. Please contact me.

Submitted by: Date: ______________________