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FAA
Federal Aviation Administration Department of Transportation
Aviation Safety
AIRWORTHINESS DIRECTIVE
Generated by Aircraft-logs.com — March 22, 2026

AD 62-03-02 ACTIVE

Hydraulic Valve Tappet Body and Plunger Assembly
Key Information
AD Number 62-03-02 Status Active
Effective Date February 27, 1962 Issue Date Not specified
Docket Number Unknown Amendment N/A
Product Type ["Engine"] Product Subtype Not specified
CFR Part --- - Part 39 CFR Section N/A
Citation This information is not available.
Applicability
Manufacturer(s) Lycoming Engines
Model(s) VO-540-A1A VO-540-B1A VO-540-B1B VO-540-B1B3 VO-540-B1C VO-540-B1D VO-540-B1E VO-540-C1A VO-540-C1B
Regulatory Text

62-03-02 LYCOMING: Amdt. 394 Part 507 Federal Register January 26, 1962. Applies to All VO-540 Series Engines.
Compliance required as indicated.
To preclude failures of the hydraulic valve tappet body and plunger assembly, an improved hydraulic tappet body and plunger assembly has been provided.
Unless already incorporated, install a Lycoming P/N 72876 plunger assembly and a Lycoming P/N 73061 tappet body at the next engine overhaul after the effective date of this AD.
(Lycoming Service Instruction No. 1011 covers this same subject.)
This directive effective February 27, 1962.

AD 62-03-02 — Hydraulic Valve Tappet Body and Plunger Assembly
Printed from Aircraft-logs.com — 03/22/2026