1. Hangar Maintenance (on Aircraft)
Embry-Riddle Aeronautical University
Hangar Maintenance (on Aircraft)
Chapter 14

2. Hangar Maintenance (on Aircraft)
Introduction
Organization of Hangar Maintenance
Problem Areas in Hangar Maintenance
Non-routine Items
Parts Availability
Parts robbing (cannibalization)
Maintenance Support Shops
Ground Support Equipment (GSE)
Summary

3. Introduction
Hangar Maintenance refers to that done when aircraft is out of service
Scheduled checks above “A” (i.e. C, D etc.)
Modifications to aircraft or systems by SB, AD, or EO
Special inspections required by airline, FAA, or operational conditions
Painting of aircraft
Aircraft interior modifications

4. Introduction
PP&C schedules the activities & coordinates with Ops & maintenance activities, materiel etc..
Hangar shops, supply points, parts storage, aircraft parking (esp. type/model/series), tools & GSE
Hangar space adequate, & hangar maintenance must be planned, scheduled, & controlled to ensure work is completed on time…TIME is MONEY

5. Organization of Hangar Maintenance
Hangar Maintenance is a position under director of aircraft maintenance
Aircraft maintenance
Responsible for all hangar maintenance activities
Controls flow of aircraft into & out of check, maintenance crews, coordinates with overhaul & support shops, materiel, PP&C, flt line maintenance & OPS regarding aircraft in hangar
GSE and facilities
All GSE required, & hangar facilities & flt line maintenance
Support Shops
Welding shops, avionics, engine, mechanical, upholstery, seats & interior

6. Problem Areas in Hangar Maintenance
Non-routine Items
Routine Maintenance has a fixed amount of time & are listed in the Maintenance Planning Document (MPD)
ASSUMES all will go well with no delay or maintenance induced problems etc..
Non-routine (unscheduled) requires best “guess-timate” & need to keep PP&C in the loop
The time will be noted for future performance of “like” non-routine tasks..important for planning purposes
Parts Availability
Must have a parts staging area & plan ahead for the “out-of-service” maintenance
Parts ordering, pick up & delivery needs to be efficient to minimize down time of maintenance crews…

7. Problem Areas in Hangar Maintenance
Parts Robbing (cannibalization)
Necessary evil in maintenance
Mission oriented – must always deliver airworthy vehicles to Ops to meet the flight schedule
Rules to consider:
Cannibalization should be discouraged unless necessary
Parts must be ordered even if part is available on another aircraft
Only be performed with consent of management and approval of director of maintenance responsible for both aircraft
Always try to reduce the redundancy of labor

8. Maintenance Support Shops
These support shops don’t require FAA licenses
refurbish or repair aircraft panels
Fabrics & interior shops
Aircraft seat shops
Work is NOT directly part of the scheduled maintenance although an intricate part
May be required by work card, SB, AD, or EO

9. Ground Support Equipment (GSE)
“that equipment that is required to support the operation & maintenance of the aircraft & all its airborne equipment”
Two basic categories:
Equipment to support servicing & handling of operational aircraft while engaged in flight turnaround & ground movement activities
Equipment used to facilitate maintenance at turnaround, scheduled or unscheduled downtime
Pg 161 list of equipment & usage
Must procure GSE & tooling appropriate for new type/model/series – 9 – 12 months prior
Acquire type & level of maintenance to be performed, # of multiple units,
GSE personnel is responsible for general maintenance & upkeep of GSE (PMs, MRCs, licensing etc.)

10. Hangar Maintenance (on Aircraft)
Introduction
Organization of Hangar Maintenance
Problem Areas in Hangar Maintenance
Non-routine Items
Parts Availability
Parts robbing (cannibalization)
Maintenance Support Shops
Ground Support Equipment (GSE)
Summary

11. Questions?