Airworthy Prep

A&P Airframe test code

AM.II.O.R1Water and Waste Systems

A&P Airframe test (Section II), subject O

Written as am.ii.o.r1 or AM.II.O.R1 on your score report.

The FAA's wording

Servicing lavatory waste systems, including use of safety equipment.

Aviation mechanic test standard, FAA-S-ACS-1, Section II, Subject O

What it means

AM.II.O.R1 is a risk management element in the Water and Waste Systems subject of the A&P Airframe test. A risk management element is a hazard the FAA expects you to be able to spot and manage, and the written test can ask questions on it.

AM
Aviation Mechanic, the mechanic test standard
II
Section II: Airframe
O
Subject: Water and Waste Systems
R1
Risk management element 1

Seeing it on your score report

Your Airman Knowledge Test Report lists an ACS code for each question you missed. Seeing AM.II.O.R1 there means at least one of your wrong answers was on this element. The examiner retests every code on your report during the oral part of the practical test, so study it before then.

Sources: Aviation Mechanic ACS Companion Guide, FAA-G-ACS-1 (Change 2), ch. 2, p. 11 and ch. 5, p. 19; FAA-S-ACS-1, Appendix 1, p. A-1.

The examiner will ask about the codes you missed

"All deficient knowledge areas, as indicated by the ACS codes on the AKTRs, are retested during the oral portion of the test."
FAA-S-ACS-1, Appendix 1, Evaluator Responsibilities, p. A-1

Your oral test is 4 random questions plus one for every code on your report, closed book. Our A&P Oral & Practical course builds a mock oral from the codes you tick, with a model answer and FAA source for every question, and a guide for every practical project. $49.

See Oral & Practical

Try a sample question on AM.II.O.R1

Water and Waste Systems ยท AM.II.O.R1

While servicing a lavatory waste system, a technician spills waste fluid onto the floor and into the structure below the lavatory. Which response best manages the risks?

Practice water and waste systems

The full A&P Airframe course has questions on every element in this subject area, with an explanation and FAA source for each.