CHECKLIST: TYPES OF MAINTENANCE
Line maintenance Heavy maintenance, overhaul, or modification Corrosion control and cleaning Airplane painting and paint removal Airplane storage or logistics operations Engine maintenance or overhaul Maintenance by a third party Passenger or cargo logistics Component overhaul
(e.g., propulsion systems, auxiliary power units, flight controls, air-conditioning systems, avionics systems, electrical power systems, structures, hydraulic and pneumatic systems, fuel system, interiors, and landing gears, wheels, tires, and brakes)
Identify the shops and support func- tions that will be required to support the hangar functions (table 2).
CHECKLIST: SUPPORT FUNCTIONS
Administration and engineering offices Airplane painting and paint removal Airplane parking, aprons, ramps, and taxiways Airplane washing Engine overhaul facility and test cell Ground-support equipment repair, storage, and staging Component storage and staging Car and bus parking, bathrooms, cafeteria, and locker rooms Computer room Electrical substation and emergency power plant Facility maintenance Fire-water reservoir and pump house Flight-crew support areas Guardhouse, fencing, and security Hazardous materials storage Maintenance library Maintenance training Passenger logistics Quality assurance and control
Assess airplane access requirements. The height of the hangar will be deter- mined by the models of airplanes to be housed, the variety of work to be performed on those airplanes, reg- ulatory requirements, and the types of airplane-access systems to be used. Areas for the project team to consider include airport obstruction height limitations (as required by U.S. Federal Aviation Administration federal aviation regulation 77), con- trol tower line-of-sight issues, airport traffic control and radar systems, floor-mounted portable work stands and docks, roof-mounted suspended docks, teleplatforms, personnel protection systems, overhead travel- ing cranes, and airplane jacking or landing-gear pits.
Assess airplane layout requirements. As with hangar height, the internal dimensions of the hangar will be
determined by the types and number of airplanes housed and the work performed. In addition, possible insur- ance or regulatory authority clearance requirements as well as maintenance policy will affect the internal dimen- sions of the hangar. Areas to consider include required horizontal clearances around airplanes including stands and floor- or roof-supported maintenance docks, the ability to move airplanes while others are in the hangar, tail-in versus nose-in airplane-parking con- figurations, building setback require- ments, the proximity to adjacent buildings, the use of tail doors, and the installation of floor airplane power-supply stations.
Assess company standards for interior and exterior finish quality, security, facility maintenance, access for people with disabilities, and corporate image.
Once the airline’s objectives for the hangar have been established, the project team must analyze certain facility design and construction elements to ensure the hangar design will support the airline’s objectives.
Airport-related issues are facility issues that must be closely coordinated with regulatory, airport, and environmental authorities. The hangar project team should consider the following elements:
Determine the areas available for development and the procedures for procuring the land. For site selection, consider the ability to easily maneuver current and future airplanes from the site, taxiway access requirements,
Bidding and contract requirements
Bid period Bond requirements Construction contract type
General scope of construction work Construction administration requirements
Demolition Utilities Landscaping Airplane and land-side pavements
Concrete strength (varies with airplane type) Concrete finishes
existing rotary aircraft flight paths, and proximity to airline operations, runways, taxiways, and parking. The potential for horizontal and vertical expansion of the facility is also an important considera- tion, as are options for adjacent or other air- or land-side locations.
Terms and conditions.
Evaluate leasehold agreements, potential land acquisition, zoning issues, envi- ronmental limitations, setback require- ments, and compatibility with the airport master plan.
Government and community.
Water supply and treatment Commercial equipment Fluid waste disposal Industrial and process equipment Telecommunication equipment
Manufactured cabinets Furniture and accessories
Clean rooms Liquid and gas storage tanks Utility control systems Building automation systems Preengineered buildings
Hoists and cranes Material handling systems Airplane service docks Landing-gear pits
Heating and ventilation Air conditioning Filtration
Fire protection Electrical
Power generation and transmission (including
emergency power and 400-Hz systems) Lighting Communications (data and telephone) Building controls and instrumentation Security systems
Consider community attitudes toward airport development, potential local or state financial inducements for development, development schedule limitations, established application processes and points of contact, and airport or local jurisdiction site- development criteria.
Masonry (e.g., hangar walls) Metals (structural steel requirem Wood and plastics
Thermal and moisture protection Doors and windows
Environmental conditions and noise-abatement issues.
Finishes (painting and interior an Specialties
Evaluate the likelihood and effect of severe weather (e.g., hurricanes, tor- nadoes, hail), earthquakes, prevailing winds, extreme heat or cold, bird hazards, and visibility problems. Also consider noise issues that may require dedicated noise-abatement facilities for engine and daytime taxiway runups.
Review current and future airport capacity, runway capacity, airport navi- gation systems, landing fees, hours of operation, snow removal and deicing capabilities, airport fueling and defueling, air- and land-side access, airplane rescue and firefighting, and airport security.
Insurance underwriter reviews.
Contact the airline’s insurance company to find out whether it has requirements beyond those required by the local building jurisdiction. Consider inviting one of the insurance company’s loss prevention engineers to the hangar planning sessions and the early design meetings to ensure the final design is consistent with insur- ance requirements.
Finished carpentry Cabinets and built-in furniture
(quality of roof and insulation)
Door and window quality Hangar door
d exterior detailing)
Interior details Partition walls and cubicles