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their in-service responsibility.
No working groups were held for the turboprop aircraft types. All inspections were managed
through Customer Support or the BAE SYSTEMS Maintenance and Engineering departments.
BAE SYSTEMS Regional Aircraft at Prestwick would like to publicly thank all the airlines that
offered aircraft for the turboprop inspection programme. The airlines are listed in their respective
aircraft type categories below.
4.0 BAE Systems Working Group Report (continued)
August 4, 2000 Industry AFFSP Report Page 31
Jetstream 41
Fifteen aircraft out of a fleet of 99 were inspected. The operators who volunteered aircraft for
inspection are listed here:
! Atlantic Coast Airlines.
! Manx Airlines.
! SA Airlink.
Jetstream 31/32
Fourteen Jetstream 32 were inspected aircraft out of a fleet of 140. No Jetstream 31 aircraft have
been inspected. However, the fuel systems of these two types are similar. The operators who
volunteered aircraft for inspection are listed below:
! Air Kilroe.
! Air National.
! Ansett NZ.
! Flight West.
! Highland Air.
! JAIR.
BAe ATP
Eight aircraft were inspected out of a fleet of 60. The operators who volunteered aircraft for
inspection are listed below:
! Manx.
! SATA.
HS 748
Three aircraft out of a fleet of 244 were inspected. The operators who volunteered aircraft for
inspection are listed below.
! Belgian Air Force.
! Emerald Airways.
4.0 BAE Systems Working Group Report (continued)
Page 32 Industry AFFSP Report August 4, 2000
4.4 Working Group Approach
The ATA Leadership Team had been established for some months before BAE SYSTEMS
joining. During that period, the basic concept and objectives had been established for the voluntary
inspection programme. BAE SYSTEMS were able therefore to adopt a process that had already
been thoroughly discussed and agreed by the world’s major manufacturers and airlines. BAE
SYSTEMS adopted the process with the intention of developing an inspection programme to
cover all the fuel tank installations on its aircraft types. This approach was facilitated by the
relatively simple designs of fuel systems on regional aircraft.
4.4.1 Inspection Types and Criteria
The basis of the inspections for all the BAE SYSTEMS aircraft types was as follows:
A. FOD check—check for freedom from foreign objects such as metal shavings, rags, and tools.
B. Metallic structure and components—inspect for cracks, overheating, dents, evidence of
arcing, distortion, security and cleanliness of attachments, missing fasteners, deterioration of
protective treatment, and corrosion.
C. Mechanical component inspection—check for any obstruction of drains, drainage paths, vent
holes, or vent pipes. Check for security of all couplings. Check for any signs of sooting of vent
pipes.
D. Seals and gaskets check—all visible seals should be visually checked for signs of damage,
degradation, distortion, or evidence of heat leakage.
E. Electrical bonding—visually check that all sections of pipe and components are bonded to
structure.
F. Component checks:
! Bonding lead check—inspect all bonding leads for signs of breakage, braid fraying,
tarnishing, corrosion, security of end fastenings, spirap covering (where applicable), and
any leads that may be missing completely.
! Tank units check—all wiring shall be inspected along the entire exposed routing within
the tank for any damage or chafing to the insulation. Check for any sharp edges in close
proximity to the wiring, such as where the wiring enters or exits tank structure or routing
conduits. Ensure that all routing conduits have inserts at each end. Check for cleanliness
and security of all connections. Ensure all terminal blocks and wire end fittings are free
from corrosion and contamination.
! Fuel boost pumps—check all wiring conduits for kinks or damage. Particular attention
should be paid to area of conduit bends.
! Float Switches—check there is no evidence of fuel leaks onto electrical connections.
Check there is no evidence of loose/arcing connections. Where applicable, check that there
is no evidence of any damage to the metallic conduit that houses the wiring.
! Access panels—check the condition of the metal mesh/conductive gasket on tank access
panels.
4.0 BAE Systems Working Group Report (continued)
August 4, 2000 Industry AFFSP Report Page 33
4.4.2 Turbofans
The team identified in section 4.3.1 developed the information necessary to conduct the voluntary
inspections on in-service BAe 146 and Avro 146-RJ jetliners. BAE SYSTEMS Customer Support
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