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UNSCHEDULED MAINTENACE
4. Flood damage, immersion in water
Aircraft recovered from partial or total immersion in standing water or flash
floods require an in-depth inspection and cleaning of both the exterior and interior
areas. Water-immersion increases the probability of corrosive attack, it removes
lubricants, deteriorates aircraft materials, and destroys electrical and avionics
components.
Prompt action is the most important factor following recovery of an aircraft from
water-immersion. Components of the aircraft which have been immersed, such as
the powerplant, accessories, airframe sections, actuating mechanisms, screws,
bearings, working surfaces, fuel and oil systems, wiring, radios should be disas-
sembled, as necessary, and the contaminants completely removed.
Nevertheless, these guidelines are general in nature and should be applied or var-
ied to fit the individual aircraft according to water level, exposure time and other
variables. Only those areas that might not be obvious to the mechanics are ad-
dressed.
Make all repairs and/or adjustments in accordance
with the appropriate Tecnam maintenance manual
and the component manufacturer’s maintenance
manual. Particular attention to silt, corrosion and
contaminants.
- Follow Tecnam and Rotax Maintenance Manual procedures. If there are any
questions regarding repairs or procedures, contact Tecnam.
- Determine the water level on the aircraft. Determine which operating and/or
electrical components have been exposed to the water.
- If the following items were immersed, inspect them closely to determine the ex-
tent of damage:
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