Renal Calculi : Further FAA Medical Workup

AASI Protocol Instructions for Airman and AME

Mar 2014

Guidance is compiled and interpreted by professional pilots and physicians at from the 2014 AME Guide page 284, FAA and FDA web data ( &, instructions specified in the Aeronautical Information Manual, Federal Air Surgeon Bulletins from 1999-2015, and 14 CFR Part 61 and Part 67 (the FARs).

AME Assisted Special Issuance (AASI) is a process that provides Examiners the ability to re-issue an airman medical certificate under the provisions of an Authorization for Special Issuance of a Medical Certificate (Authorization) to an applicant who has a medical condition that is disqualifying under Title 14 of the Code of Federal Regulations (14 CFR) part 67.

An FAA physician provides the initial certification decision and grants the Authorization in accordance with 14 CFR § 67.401. The Authorization letter is accompanied by attachments that specify the information that treating physician(s) must provide for the re-issuance determination.

If this is a first-time application for an AASI for kidney stones, and the applicant has all the requisite medical information necessary for a determination, the AME must defer and submit all of the documentation to the AMCD or the Regional Flight Surgeon for the initial determination.

AMEs may re-issue an airman medical certificate under the provisions of an Authorization, if the applicant provides the following:

  • An Authorization granted by the FAA;
  • A statement from your treating physician regarding the location of the retained stone(s), estimation as to size of stone, and likelihood of becoming symptomatic; and
  • A current report of appropriate imaging study (IVP, KUB, Ultrasound, or Spiral CT Scan) and provide a metabolic work-up, both performed within last 90 days.

The AME must defer to the AMCD or Region if:

  • If the treating physician comments that the current stone has a likelihood of becoming symptomatic;
  • If the retained stone(s) has moved when compared to previous evaluations; or
  • If the stone(s) has become larger when compared to previous evaluations.

Download an FAA AASI Cover sheet for the the submitting AME to use (2014 PDF format)

This page discussed Renal Calculi : Further FAA Medical Workup

Reminder: use to familiarize yourself with aviation medical regulations and guidelines, but always discuss your specific situation with one or more AMEs before dedicating resources toward expensive clinical workups. Find an AME now