AD 87-13-05 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | AS355E | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Model AS 355 Series Helicopters |
| aircraft | Airbus Helicopters | AS355F | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Model AS 355 Series Helicopters |
| aircraft | Airbus Helicopters | AS355F1 | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Model AS 355 Series Helicopters |
| aircraft | Airbus Helicopters | AS355F2 | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Model AS 355 Series Helicopters |
Unsafe Condition
Unbonding of main gearbox suspension bar end fittings, leading to possible cracking or protrusion of the PR compound and failure of the bars.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect suspension bars for bearing displacement, cracking, or PR compound protrusion within 10 hours time in service after the effective date. Affix adhesive tape around each bar end if no discrepancies found. Conduct subsequent visual tape checks every 10 hours time in service. Replace faulty bars with serviceable parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time in service after the effective date of this AD
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Affected Aircraft
Societe Nationale Industrielle Aerospatiale (SNIAS) Model AS355E, AS355F, AS355F1, AS355F2 helicopters equipped with main gearbox suspension bars having Part Numbers 355A-38-0040-02, -03, -04, -05.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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