September/October 2023 - 18

STRUCTURAL REPAIRS
How To Repair
and Prevent
Corrosion
Corrosion can be the unseen element
making an otherwise safe aircraft
dangerous. It's important to learn how
to prevent corrosion and when to repair
corroded aircraft parts.
by AviationPros Editorial Staff
Corrosion prevention requires a good visual inspection
and non-destructive testing (NDT) inspection.
STANDARDAERO
18 SEPTEMBER/OCTOBER 2023
T
he prevention and repair of airframe
corrosion is an important
maintenance activity with implications
in terms of structural integrity
and safety. In this feature, we have
reached out to industry experts to
assess best practices for corrosion
prevention, to perform corrosion-related
repairs and the impact of newer designs on
corrosion prevention and repair.
Preventing Corrosion
According to Juan Vega, director of facilities at
StandardAero's Van Nuys facility, a constant cycle
of cleaning, inspection, storage and lubrication
must be followed to prevent corrosion. " In addition,
having maintenance personnel well-trained
on corrosion control programs and inspection
techniques will improve corrosion prevention, "
he said.
With regard to corrosion prevention, it is necessary
to follow the original equipment manufacturer's
(OEM's) corrosion prevention and control
program. " Completing corrosion inspections regularly,
filling out service bulletins that improve
durability to corrosion, and regularly cleaning the
aircraft from external pollutants help prevent corrosion, "
said Ray Sharp, director of operations at
the StandardAero plant in Springfield, Illinois.
Corrosion prevention involves treating the surface
in a way that prevents the metal from starting
to self-destruct and returning to its natural state,
observes Jerel Bristol, president of SEAL.
" Sometimes corrosion begins within the metal,
typically due to a manufacturing defect when the
material was produced. Corrosion prevention typically
begins with applying a chemical film to the
metal, i.e., a good epoxy primer. Sometimes the
metal is heat-treated to strengthen it but also to
prevent corrosion, " he says. " When a corrosion
preventative compound (CPC) is applied, there
should be no corrosion present otherwise, if CPC is
applied to the corrosion, corrosion will continue.
CPC will also not allow visual inspection of the
surface, but by the time one sees the corrosion
covered by the CPC, the damage will be extreme. "
A valuable prevention tool is to perform a good
visual and non-destructive testing (NDT) inspection,
treat bare surfaces so as not to allow exposed
metal to initiate corrosion, and have the exterior of
the aircraft properly painted while subjecting the
AIRCRAFT MAINTENANCE TECHNOLOGY

September/October 2023

Table of Contents for the Digital Edition of September/October 2023

EDITOR’S TAKEOFF
Industry Inspection
New Hangar Build Best Practices
How To Repair and Prevent Corrosion
How and Why to Adopt an SMS
The Basics Behind Getting an I
The Borescope Market in 2023
FOR THE RECORD
ARSA INSIGHT
New Bump Cap Designs Offer More Flexibility, Fit More Heads
Advertiser’s Index
September/October 2023 - 1
September/October 2023 - 2
September/October 2023 - 3
September/October 2023 - EDITOR’S TAKEOFF
September/October 2023 - 5
September/October 2023 - Industry Inspection
September/October 2023 - 7
September/October 2023 - 8
September/October 2023 - 9
September/October 2023 - New Hangar Build Best Practices
September/October 2023 - 11
September/October 2023 - 12
September/October 2023 - 13
September/October 2023 - 14
September/October 2023 - 15
September/October 2023 - 16
September/October 2023 - 17
September/October 2023 - How To Repair and Prevent Corrosion
September/October 2023 - 19
September/October 2023 - How and Why to Adopt an SMS
September/October 2023 - 21
September/October 2023 - 22
September/October 2023 - 23
September/October 2023 - 24
September/October 2023 - 25
September/October 2023 - The Basics Behind Getting an I
September/October 2023 - 27
September/October 2023 - The Borescope Market in 2023
September/October 2023 - 29
September/October 2023 - 30
September/October 2023 - 31
September/October 2023 - 32
September/October 2023 - FOR THE RECORD
September/October 2023 - ARSA INSIGHT
September/October 2023 - New Bump Cap Designs Offer More Flexibility, Fit More Heads
September/October 2023 - 36
September/October 2023 - 37
September/October 2023 - 38
September/October 2023 - 39
September/October 2023 - 40
September/October 2023 - 41
September/October 2023 - Advertiser’s Index
September/October 2023 - 43
September/October 2023 - 44
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