NOTE 1 : If a 100-hr. inspection has been carried out during the last 3 months, do not perform the operations identified with a "0" unless the annual inspection replaces a 100-hr. inspection. For US registered aircraft, perform all operations.
AHAA
Validity : S / N 1 - 9999 05 20-01Page 242
(IA) JUN 01
ATA OPERATIONS Area INSPECTIONS
1st
25 hrs 50
hrs 100
hrs Major Ann. Other
74-10 4) Check the TCM magneto, the attach fittings and the grounding. Refer to the latest issue of LYCOMING Service Bulletin No. 515 100 X 500 hrs
(SB 643 Teledyne Continental, Paragraphs
2A and 3).
74-10 5) Check breaker points for pitting and
minimum gap. 100 X X 0 NOTE 1
74-10 6) Check for excessive oil in the breaker
compartment ; if found, wipe dry with a clean lint-free cloth. 100 X X 0 NOTE 1
74-10 7) The felt located at the breaker points should be lubricated in accordance with the
magneto manufacturer's instructions. 100 X X 0 NOTE 1
74-10 8) Check magneto to engine timing. 100 X X 0 NOTE 1
74-20 Distribution
74-20 1) Remove and thoroughly inspect the upper and lower spark plugs. If the spark plugs are fouled, clean and adjust gap, then permute upper and lower spark plugs - refer
to 74-20-02 201. 100 X X X 0 NOTE 1
74-20 2) Check the conductors and the ceramics for corrosion and deposits. 100 X X X 0 NOTE 1
Clean the cable ends, spark plug walls and
ceramics with a dry clean cloth or a clean
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