BRP-Rotax
MAINTENANCE MANUAL LINE
ACCEPTABLE METHODS, TECHNIQUES AND PRACTICE
General note All general inspection, maintenance and repair has to be carried out in accordance with
Advisory Circular AC 43.13 from FAA.
Advisory Circular This Manual "Advisory Circular" AC describes maintenance methods, techniques and
practice. These are recognized and authorized for inspection and repairs in non-pressur-
ized areas for which there are no separate maintenance and repair instructions.
Corrosion Environmental corrosion (on the external surfaces) is a naturally occurring process which
can inevitably affect the continued airworthiness of the engine, engine mounted compo-
nents and accessories. Susceptibility to corrosion is influenced by a number of factors, in-
cluding but not limited to, geographical location, season and usage. All general preventive
(technical) measures, identification, control and treatment of corrosive attack on aircraft
structures and engine materials has to be carried out in accordance with Advisory Circu-
lar AC 43-4B from FAA and also in accordance with the information of the aircraft manu-
facturers Instruction for Continued Airworthiness. Furthermore the preservation
procedures for stored and inactive aircraft (engines) provides an effective means for com-
bating and minimizing the corrosion condition and should be adhered to.
Advisory Circular AC 43-4B This advisory circular (AC) is a summary of the current avail-
able data regarding identification and treatment of corrosive attack on aircraft structures
and engine materials. Corrosion inspection frequency, corrosion identification, and espe-
cially corrosion treatment continues to be the responsibility of the operator. These inspec-
tions should be accomplished per this AC, the manufacturer’s recommendations, or the
operator’s own maintenance program. The procedures in this AC are an acceptable
means, but not the only acceptable means, of corrosion treatment. The information in this
AC is applicable to aircraft for which the manufacturer has not published corrosion control
information.
Self-locking
NOTICE
Self-locking nuts, cotter pins, tab washers and safety wires must be replaced
each time they have been removed.
All instructions regarding the securing and lubrication of parts must be observed Adher-
ence to specified torque values is required.
Nut securing When using a self-locking nut, make sure the polyamide insert ring meets the require-
ments of DIN 985. Be sure that the securing elements the nut is positioned towards the
outside, in accordance with DIN 980.
05–00–00
Page 12
December 01 2023
Effectivity: 916 i A / C24
Edition 0/Rev. 1
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