AD 2015-24-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Socata | TB 9 | Airworthiness Directives; SOCATA Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; SOCATA Airplanes |
Unsafe Condition
Corrosion of the horizontal stabilizer (HS) spar, caused by humidity ingress in airplanes subject to severe environmental conditions, which could result in buckling and permanent HS distortion, possibly leading to reduced control of the airplane.
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Required Actions
Within 13 months after January 4, 2016, and repetitively thereafter at intervals not exceeding 72 months, perform a special detailed inspection of the HS spar following DAHER-SOCATA TB Aircraft Mandatory Service Bulletin SB 10-152, Amendment 1. If no discrepancies are found, protect the HS spar as instructed. If discrepancies are detected, perform applicable corrective actions before further flight.
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Compliance Time
Within 13 months after January 4, 2016, and repetitively thereafter at intervals not exceeding 72 months.
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Affected Aircraft
SOCATA Models TB 9, TB 10, TB 20, TB 21, and TB 200 airplanes, all manufacturer serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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