Service Bulletin No. 658

Starter Inspection, Hartzell Engine Tech (HET) Service Bulletin (SB) No.211

DATE:

January 8, 2025

MODELS AFFECTED:

IO-360-A1A, -A1B, -A1B6, -A1B6D, -A1D6, -A2B, -A3B6, -A3B6D, -M1A,
-M1B, -N1A, -P1A -LIO-360-M1A
AEIO-360-A1A, -A1B, -A1B6, -A1D, -A1E, -A1E6, -A2C
IO-390-A1A6, -A1B6, -A3A6, -A3B6
AEIO-390-A1A6, -A1B6, -A3A6, -A3B6
IO-540-V4A5, -V4A5D, -W1A5, -W1A5D, -W3A5D.

TIME OF COMPLIANCE:

Next regularly scheduled aircraft inspection or engine maintenance event,
whichever occurs first.