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

AD 47-50-12 ACTIVE

Stabilizer attachment fitting
Key Information
AD Number 47-50-12 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) Univair Aircraft Corporation
Model(s) 108 108-1
Regulatory Text

47-50-12 STINSON: Applies to Model 108 Series Serial Numbers 1 through 3500.
Compliance required every 100 hours of operation.
Inspection of the stabilizer leading edge attachment to the fuselage should be made for fatigue cracks, after each 100 hours of operation. If fatigue cracks are present, reinforcements to the stabilizer fitting should be added. Inspection may be discontinued after reinforcement is installed.
(Stinson Service Bulletin No. 254 dated September 5, 1947, covers this same subject.)

AD 47-50-12 — Stabilizer attachment fitting
Printed from Aircraft-logs.com — 03/22/2026