Service Instruction No. 1279 D

Oil Sump Baffle Replacement

Supersedes Service Instruction No. 1279C

May 15, 2019

MODELS AFFECTED:

• IO-540-AA1A5, -AA1B5, -AE1A5, -E1A5, -E1B5, -K1A5, -K1B5, -K1D5, -K1E5, -K1F5, -K1G5, -K1H5, -K1J5, -K1K5, -K1A5D, -K1G5D, -K1J5D, -L1C5, -M1A5, -M1C5, -M1B5D, -S1A5
• TIO-540-A2B, -A2C, -AE2A, -AH1A, -F2BD, -J2B, -J2BD, -S1AD, -U2A
• LTIO-540-F2BD, -J2B, -J2BD, -U2A
• IO-580-B1A

TIME OF COMPLIANCE:

Whenever oil sump baffle replacement is necessary or at owner's discretion.

REASON FOR REVISION:

Oil sump baffle P/N 56G23399 and 56G26069 superseded by P/N 56G28031. Added reference to new attaching hardware required for new baffle P/N. Added Table 1 to cross-reference baffle or sump assembly P/N to engine model.