(a) Vacuum the area where the mercury spill occured.
1) Clean a small mercury spill with a trap-type glass container, or a high flow vacuum cleaner.
NOTE: Mercury fumes can cause contamination to a
____ commercial vacuum cleaner.
2) Clean a large mercury spill with a mercury vacuum cleaner.
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757 MAINTENANCE MANUAL
S 212-004
(3) Use a 10X magnification hand lens and examine the structure visually. Look for bare metal (scratched or chipped paint).
(a) If you think mercury has penetrated into bare metal or structural joints, those areas must be X-rayed.
NOTE: Droplets of mercury show on X-ray negatives as small
____ white spots. Corrosion and embrittlement show as tree-like forms that penetrate the structural component.
S 162-006
(4) Clean your hands, clothes, and tools with soap and hot water. Do this after the mercury spillage contamination has been removed and examination completed.
F. Main Deck (Major Zone 200) Mercury Spillage
S 212-007
(1) Examine the floor seals in the area of the spillage.
(AMM 53-01-01/401).
(a) If floor seals are deteriorated, the floor panels must be removed and the structure examined.
S 212-008
(2) Make a visual examination of the seat track rails (and frame to floor beam components) if mercury spillage occurs near them. Use a 10X magnification hand lens to look for bare metal (scratched or chipped paint).
NOTE: A sensing device (mercury sniffer) is recommended to
____ find mercury deposits you can not see. This is used when the mercury spillage is identified as large. X-ray equipment (when available) can also be used to find mercury.
(a) If you think mercury has penetrated into bare metal or structural joints, those areas must be X-rayed.
NOTE: Droplets of mercury show on X-ray negative as small
____ white spots. Corrosion and embrittlement show as tree-like forms that penetrate the structural component.
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(3) Clean your hands, clothes, and tools with soap and hot water. Do this after the mercury spillage contamination has been removed and the examinations are completed.
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757 MAINTENANCE MANUAL
FIRE-RESISTANT HYDRAULIC FLUID REACTION WITH TITANIUM -
_______________________________________________________ MAINTENANCE PRACTICES (CONDITIONAL INSPECTION)
______________________________________________
1. General_______
A. This section gives procedures to examine bare, painted, or gold coated titanium parts. The examination is necessary when the titanium touches fire resistant hydraulic fluid that has temperatures above 270° F (132° C). At these temperatures, titanium becomes brittle.
TASK 05-51-22-212-001
2. Conditional Inspection of Titanium Parts in Fire-Resistant Hydraulic Fluid__________________________________________________________________________ Contamination Areas___________________
A. Examine the Titanium Parts
NOTE: Titanium parts found in hydraulic fluid areas have a flat, black
____ inorganic finish, or a gold coat for protection. Make sure that the black finish is not hydraulic fluid.
S 212-004
(1) Examine all of the titanium parts in the hydraulic fluid areas. Look for contamination, and metal or paint deterioration.
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