AAC Aviation Maintenance Levels Questions and Answers — 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?
- Replacing a main rotor blade after it was damaged by debris. (Correct answer)
- Overhauling a transmission that has reached its time between overhaul (TBO) limit.
- Performing a complete airframe structural alignment using specialized jigs.
- Rebuilding an engine control unit (ECU) by replacing internal micro-circuitry.
Correct answer: Replacing a main rotor blade after it was damaged by debris.
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?
- Condemning the pump and ordering a new one from the supply system.
- Testing, disassembling, repairing, and reassembling the pump with authorized components. (Correct answer)
- Sending the pump to the original equipment manufacturer (OEM) for a complete rebuild.
- Performing a full remanufacture of the pump to factory-new specifications.
Correct answer: Testing, disassembling, repairing, and reassembling the pump with authorized components.
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?
- The aircraft requires a scheduled 500-hour phase inspection.
- The main transmission chip detector indicates the presence of metal flakes.
- The aircraft has sustained significant structural damage in a hard landing, requiring airframe realignment. (Correct answer)
- A flight control computer has failed and needs to be replaced.
Correct answer: The aircraft has sustained significant structural damage in a hard landing, requiring airframe realignment.
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?
- AVUM is now National Maintenance and AVIM is Theater Maintenance.
- Both AVUM and AVIM have been consolidated into Sustainment Maintenance.
- AVUM is now Field Maintenance and AVIM is part of Sustainment Maintenance. (Correct answer)
- AVUM is now Operator Maintenance and AVIM is Field Maintenance.
Correct answer: AVUM is now Field Maintenance and AVIM is part of Sustainment Maintenance.
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?
- Delivering routine spare parts like nuts and bolts.
- Deploying a Downed Aircraft Recovery Team (DART) with specialized equipment. (Correct answer)
- Conducting pre-flight inspections for the AVUM.
- Performing a complete overhaul of an engine at the unit's location.
Correct answer: Deploying a Downed Aircraft Recovery Team (DART) with specialized equipment.
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.
Question 6: Which statement best describes the primary goal of Field-level maintenance (formerly AVUM) within the Army Aviation Maintenance Program?
- To perform complete overhauls and rebuilds of major aircraft components.
- To ensure a steady flow of serviceable parts back into the Army supply system.
- To provide the maximum number of mission-capable aircraft to the tactical commander. (Correct answer)
- To develop and publish new repair procedures for complex aircraft systems.
Correct answer: To provide the maximum number of mission-capable aircraft to the tactical commander.
The primary purpose of Field-level (AVUM) maintenance is to support the operational commander by maintaining a high level of aircraft readiness. This is achieved through high-frequency, on-aircraft tasks that focus on quick turnaround and returning aircraft to a mission-capable status. Repairing components for the supply system is a Sustainment-level task.
AAC Aviation Maintenance Levels Questions and Answers
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?