AD 54-02-01

AD Final Rules - DRS_54-02-01.html
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AD Number:
54-02-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
LYCOMING Model O-290-D2 Engines
Subject:
Magneto Timing
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Textron Lycoming, AVCO Corporation
Model:
O-290-D2
Product Type:
Engine
Product Subtype:
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 54-02-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   54-02-01

SUBJECT HEADING:   LYCOMING Model O-290-D2 Engines

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   54-02-01 LYCOMING: Applies to All Model O-290-D2 Engines.
Compliance required by February 1, 1954, and at each subsequent 100-hour inspection.
In order to preclude the possibility of serious engine damage from incipient detonation under certain atmospheric and altitude conditions, the magneto timing of all Lycoming O-290-D2 engines must be set at 18 degrees BTC. To insure that the magneto timing does not change substantially from this setting, it should be checked and reset, if necessary, at each subsequent 100-hour inspection.
(Lycoming Service Bulletin No. 169 covers this same subject, but recommends that the timing be checked every 50 hours.)

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