Volume 2-757
57-20-01
Page 1
OCT 01/00
CORROSION PREVENTION MANUAL
OUTER WING
(5)Corrosion inhibiting compounds can be used on fiberglass fairings and
ducts if the temperature of the duct is not hotter than 220°F.
(6)
Corrosion inhibiting compounds can be used on fuel vapor barriers.
F.
Frequency of Application
(1)Periodic inspection is required in areas identified as susceptible to
corrosion and should be consistent to the schedules specified in the
Maintenance Planning Document. Operators must be aware of reported prob-lems and areas of occurrences.
(2)
Periodic application of BMS 3-23 compound is necessary to areas identi-fied and should be consistent to the schedule specified in the Mainte-nance Planning Document.
G.
Improved Corrosion Protection
(1)On airplane line number 135 and on, PRR 53685 replaced the original
primer and Corogard corrosion protection on upper inspar skin surfaces
by BMS 10-79, type 3 primer and BMS 10-100 (Aeroflex G12E25) coating.
Some operators have specified Crown Metro 10-P1-3 aluminized primer
applied over BMS 10-79, type 3 primer instead of the Corogard or BMS
10-100 finish. The BMS 10-79 primer and BMS 10-100 enamel can be applied
on earlier airplanes with SL 20-6 and 51-7.
Volume 2-757
57-20-01
Page 2
OCT 01/00
CORROSION PREVENTION MANUAL
OUTER WING
OUTER WING
TOP VIEW
(LEFT SIDE SHOWN, RIGHT SIDE SIMILAR)
Outer Wing Figure 1 (Sheet 1)
Volume 2-757
57-20-02
Page 1 OCT 01/00
CORROSION PREVENTION MANUAL
TRAILING EDGE FLAPS
WING FRONT SPAR WING REAR SPAR
DETAIL I DETAIL II
APPLY BMS 3-23, TYPE 2 CORROSION INHIBITING COMPOUNDTO SEAMS OF ALL STRUCTURAL PARTS
APPLY BMS 3-23, TYPE 2 CORROSIONINHIBITING COMPOUNDTO ALL STRUCTURAL SURFACES
Outer Wing
Figure 1 (Sheet 2)
Volume 2-757
57-20-02
Page 2 OCT 01/00
CORROSION PREVENTIONMANUAL
TRAILING EDGE FLAPS
DETAIL III
DETAIL IV
Outer Wing
Figure 1 (Sheet 3)
Volume 2-757
57-20-02
Page 3 OCT 01/00
CORROSION PREVENTION MANUAL
TRAILING EDGE FLAPS
MLG TRUNNION SUPPORT STRUCTURE
DETAIL V
APPLYBMS3-23 LIBERALLYTOPERMITPENETRATION BETWEENFITTING ANDREARSPAR. PAYPARTICULAR ATTENTIONTO FASTENERS
ANDFAYINGSURFACES
APPLYBMS 3-23 TO ALL SURFACESINCLUDING CONNECTION
POINTS
Outer Wing
Figure 1 (Sheet 4)
Volume 2-757
57-20-02
Page 4 OCT 01/00
CORROSION PREVENTION MANUAL
TRAILING EDGE AND TRAILING EDGE DEVICES
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