Aircraft maintenance and inventory control using the reorder point system

Ghobbar, Adel A.; Friend, Chris H.

doi:10.1080/00207549608905063

Cited by 11 publications

(7 citation statements)

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“…The main problem is to retain a required level of aircraft availability, that is, to provide the appropriate spare part at the right time and in the right place. The interest in inventory management has been increased in recent times but as stated in [2] the majority of airline operators and maintenance service companies felt that spare parts forecasting methods are not providing them with realistic results in practice so they tried to outguess the forecast.…”

Section: Introductionmentioning

confidence: 99%

A Reliability-Based Approach to Nonrepairable Spare Part Forecasting in Aircraft Maintenance System

Kontrec¹,

Milovanović

Panić³

et al. 2015

Mathematical Problems in Engineering

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In recent times, spare parts inventory systems have been extensively researched, but most inventory models were not fully adequate due to the stochastic nature of inventory environment. This paper proposes an approach that supports decision making process in planning and controlling of spare parts in aircraft maintenance systems. Reliability characteristics of aircraft consumable parts were analyzed in order to substantiate this approach. Moreover, the proposed reliability model was used to evaluate characteristics of subassemblies and/or assemblies these parts belong to. Finally, an innovative approach for determining the total amount of parts required in inventory and underage costs, based on observing the total unit time as a stochastic process, is presented herein.

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Section: Introductionmentioning

confidence: 99%

A Reliability-Based Approach to Nonrepairable Spare Part Forecasting in Aircraft Maintenance System

Kontrec¹,

Milovanović

Panić³

et al. 2015

Mathematical Problems in Engineering

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“…They found that 66 percent of the maintenance organizations and 57 percent of airline operator organizations "were aware of MRP but had neither used nor investigated it further" (Ghobbar & Friend). These results showed 83 percent of the companies use ROP model, and more than 50 percent of these companies were not satisfied with their inventory management system (Ghobbar & Friend, 1996). Newman (1985) argued that MRP could be used for preventive maintenance requirement planning where its use could have multiple benefits: part consumption could be tracked and maintenance personnel could be better used.…”

Section: Use Of Erp In Maintenancementioning

confidence: 99%

“…When Pan Am and Eastern Airlines went bankrupt, they held an excess inventory of spare parts of approximately $700 million and $200 million, respectively (Ghobbar & Friend, 1996). In the military environment, a 2009 U.S. Department of Defense (DOD) report stated that nearly 17 percent of all items in the inventory were inactive and were…”

Section: List Of Tablesmentioning

confidence: 99%

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Maintenance Enterprise Resource Planning: Information Value Among Supply Chain Elements

Ascef¹,

Bordetsky²,

Ferrer³

2014

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to The maintenance supply chain involves maintenance, repair, and overhaul organizations and the relationships within and across suppliers and customers. These organizations work with the probability of equipment failure, maintenance, and the use requirements of spare parts. All of these elements increase uncertainty in this environment. Furthermore, it is difficult to integrate and process information to maintain effective inventory control. This high level of uncertainty and lack of integration of information cause inventory excesses and shortages of spare parts needed in maintenance, which results in unnecessary costs.This research proposes a new model based on information processing theories to connect the lateral elements of the supply chain, increase vertical information integration, and transform the maintenance supply chain into an efficient system to decrease shortages and excesses of inventory thereby reducing costs. This research will incorporate a simulation to compare the proposed new model with the traditional inventory models. This study claims that, when using the new model in different situations, inventory performance is better than in the traditional models of inventory control. The importance of the results for the maintenance organizations relates to potential improvements in cost and in inventory control while fulfilling mission requirements.14. SUBJECT TERMS information processing, enterprise resource planning (ERP), economic order quality (EOQ), information integration, maintenance supply chain ABSTRACTThe maintenance supply chain involves maintenance, repair, and overhaul organizations and the relationships within and across suppliers and customers. These organizations work with the probability of equipment failure, maintenance, and the use requirements of spare parts. All of these elements increase uncertainty in this environment. Furthermore, it is difficult to integrate and process information to maintain effective inventory control.

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“…This facilitates better development and implementation of risk management strategies. 3. Operational loads (quantity and type of maintenance) could be predicted for individual time periods and for the entire contract.…”

Section: Introductionmentioning

confidence: 99%

Pricing and Managing a Maintenance Contract for a Fleet of Aircraft Engines

Bowman

Schmee

2001

SIMULATION

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A large corporation wished to expand its role as a provider of maintenance and repair services for aircraft engines. These services were to be provided to airlines based on long-term contracts. The magnitude and uncertainty of the costs involved (total costs for a typical contract would be in excess of a billion dollars) could expose the corporation to significant financial risk. To help mitigate and manage this risk, a simulation model was developed to assess costs over the life of the contract. The primary objective was to establish a fair contract price. The simulation model also allowed operational issues and sensitivities to be examined.

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Aircraft maintenance and inventory control using the reorder point system

Cited by 11 publications

References 0 publications

A Reliability-Based Approach to Nonrepairable Spare Part Forecasting in Aircraft Maintenance System

A Reliability-Based Approach to Nonrepairable Spare Part Forecasting in Aircraft Maintenance System

Maintenance Enterprise Resource Planning: Information Value Among Supply Chain Elements

Pricing and Managing a Maintenance Contract for a Fleet of Aircraft Engines

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