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

AD 46-50-01 ACTIVE

Fuel line rework
Key Information
AD Number 46-50-01 Status Active
Effective Date Not specified Issue Date Not specified
Docket Number Unknown Amendment N/A
Product Type ["Aircraft"] Product Subtype ["Small Airplane"]
CFR Part --- - Part 39 CFR Section N/A
Citation This information is not available.
Applicability
Manufacturer(s) Waco Aircraft Company, The
Model(s) INF KNF RNF
Regulatory Text

46-50-01 WACO: (Was Special Note 2 of AM-166.) Applies to Models INF, KNF, MNF, RNF Aircraft.
Inspection required before next flight - rework (if needed) not later than April 1, 1946.
Inspect the fuel line (or lines) connecting the fuel strainer and the carburetor to determine that this line is made up of either:
(a) Rigid metal tubing with flexible hose connections at each end, or
(b) Approved type flexible hose assembly.
Aircraft found to have fuel line installations not conforming to either (a) or (b) shall be altered to conform as soon as possible.
(Waco Service Bulletin No. 154 also covers this subject.)

AD 46-50-01 — Fuel line rework
Printed from Aircraft-logs.com — 03/22/2026