AAC Aviation Maintenance Levels Questions and Answers

Question 1

An Aviation Unit Maintenance (AVUM) team is tasked with returning an aircraft to service. Which of the following tasks is most representative of the duties performed at the AVUM level?

Accepted Answer

Replacing a main rotor blade after it was damaged by debris.

Answer

AVUM, or Field Maintenance, is characterized by 'on-aircraft' repairs focused on returning the aircraft to operational status quickly. This includes replacing modular components like rotor blades, engines, and other line-replaceable units (LRUs). Overhaul, major structural repair, and detailed component rebuilding are performed at the Depot level.

Question 2

A maintenance team at an Aviation Intermediate Maintenance (AVIM) facility receives an unserviceable hydraulic pump from a forward-deployed unit. Which action falls within the primary capabilities of AVIM?

Accepted Answer

Testing, disassembling, repairing, and reassembling the pump with authorized components.

Answer

AVIM, now part of Sustainment Maintenance, is responsible for 'off-aircraft' repair of components and modules. Their role is to test, repair, and return serviceable components to the supply system or the unit. Full remanufacturing and overhaul to factory standards are Depot-level functions.

Question 3

Which of the following scenarios would necessitate sending an entire AH-64 Apache helicopter to a Depot-level maintenance facility?

Accepted Answer

The aircraft has sustained significant structural damage in a hard landing, requiring airframe realignment.

Answer

Depot-level maintenance handles the most complex and extensive tasks, including major structural repairs, overhauls, and complete rebuilds of aircraft and components that are beyond the capabilities of Field (AVUM) and intermediate (AVIM) maintenance. Scheduled inspections and component replacements are typically handled at the AVUM or AVIM levels.

Question 4

The Army's maintenance philosophy has shifted from a three-level system (AVUM, AVIM, Depot) to a two-level system. How are the legacy AVUM and AVIM functions categorized under the current two-level maintenance concept?

Accepted Answer

AVUM is now Field Maintenance and AVIM is part of Sustainment Maintenance.

Answer

The current Army maintenance system consists of two levels: Field Maintenance and Sustainment Maintenance. Field Maintenance is 'on-system' maintenance performed by the owning unit (formerly AVUM). Sustainment Maintenance is 'off-system' maintenance which includes the more complex repairs and component overhauls previously performed at AVIM and Depot levels.

Question 5

A key function of Aviation Intermediate Maintenance (AVIM) is providing mobile support to AVUM units. What is a primary example of this type of support?

Accepted Answer

Deploying a Downed Aircraft Recovery Team (DART) with specialized equipment.

Answer

AVIM units are equipped to provide mobile maintenance support, including technical assistance and aircraft recovery. A DART mission requires specialized skills and equipment that typically reside at the intermediate (now Sustainment) level to support the forward-deployed AVUM units. Routine supply and pre-flights are AVUM tasks, while a complete overhaul is a Depot function.

AAC - Army Aviation Maintenance Program Practice Test

AAC - Army Aviation Maintenance Program Practice Test

AAC Aviation Maintenance Levels Questions and Answers