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AC 20-105B

Historical
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Advisory circular · Reciprocating Engine Power-Loss Accident Prevention and Trend Monitoring

A newer version is currentThis is a historical version. AC 20-105C Ed Update is the version in force, approved July 2, 2024.
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Approved
June 15, 1998
Last reviewed
July 31, 2001
Cancels
AC20-105A
Cancelled by
AC20-105C
Family
AC 20-105 · 3 versions
Revision
B
14 CFR parts
23, 91, 121, 135

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

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Page 13OCROpen in PDF

~ Appendix 2 AC 20-105B AREA #2 INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP. 6 INSP. 7 INSP. 8 CHT EGT#2 APPENDIX 2. - continued

COMPRESSION INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP. 6 INSP. 7 INSP. 8 #1 #2 #З #7 #8 DATE SPARK PLUG REPLACED _ @ ENGINE HOURS 6/15/98

Page 14OCROpen in PDF

6/15/98 SPARK PLUG CONDITION: 1 = good 2 = worn 3 = oil fouled 4 = carbon fouled INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP.6 INSP.7 INSP. 8 #1 CYLINDER TOP BOTTOM #2 CYLINDER TOP BOTTOM #3 CYLINDER TOP BOTTOM APPENDIX 2. - continued #4 CYLINDER TOP BOTTOM #5 CYLINDER TOP BOTTOM #6 CYLINDER TOP BOTTOM #7 CYLINDER TOP #8 CYLINDER TOP Appendix 2 AC 20-105B

Page 15OCROpen in PDF

Appendix 2 AC 20-105B INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP. 6 INSP. 7 INSP. 8

FUEL BURN GPH AREA #3 ACCESSORIES INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP. 6 INSP. 7 INSP. 8 APPENDIX 2. - continued

RT LT RT LT RT LT RT LT RT LT RT IT RT LT RT LT MAGNETO DROP @ 1500/1700 RPM INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP. 6 INSP. 7 INSP. 8 VACUUM GAUGE @ 1500/1700 RPM ELECTRICAL VOLT/AMP @ 2100 RPM INSP. 1 INSP. 2 INSP. 3 INSP. 4 INSP. 5 INSP. 6 INSP. 7 INSP. 8

AIR FILTER CONDITION

DATE AIR FILTER REPLACED 6/15/98