For those who can't access the body of the AD I've pasted it's "applicability" text here. So sorry for those affected - this is very painful. 2020 is the year that just keeps on giving...
![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
This AD applies to the reciprocating engine models identified in paragraphs (c)(1) and (2) of this
AD with a Superior Air Parts, Inc. (SAP) crankshaft assembly, part number (P/N) SL36500-A20 or
P/N SL36500-A31, with serial numbers 82976-01; 82976-02; SP12-0003 through SP12-0089,
inclusive; SP13-0034 through SP13-0150, inclusive; or SP14-0151 through SP14-0202, inclusive;
installed.
(1) With SAP crankshaft assembly, P/N SL36500-A20, installed:
(i) SAP Model IO-360-series and O-360-series reciprocating engines.
(ii) Lycoming Engines (Lycoming) Model IO-360-B2F, IO-360-L2A, O-360, O-360-A2A, O360-A2D, O-360-A2E, O-360-A2F, O-360-A2G, O-360-B2A, O-360-C2A, O-360-C2C, O-360-
C2D, O-360-C2E, O-360-D2A, and O-360-D2B reciprocating engines.
(2) With SAP crankshaft assembly, P/N SL36500-A31, installed:
(i) SAP Model IO-360-series and O-360-series reciprocating engines.
(ii) Lycoming Model AEIO-360-H1A, IO-360-B1A, IO-360-B1B, IO-360-B1D, IO-360-B1E,
IO-360-B1F, IO-360-M1A, O-360, O-360-A1A, O-360-A1C, O-360-A1D, O-360-A2A, O-360-C1A,
O-360-C1G, O-360-C1C, O-360-C1E, and O-360-C1F reciprocating engines.
Note 1 to paragraph (c): This SAP crankshaft assembly may be installed as a replacement part
under parts manufacturer approval on the affected Lycoming engines.