AD 2008-12-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | M7 | Aerospace LP SA226 and SA227 Series | Airworthiness Directives; M7 Aerospace LP SA226 and SA227 Series Airplanes |
Unsafe Condition
Chafing/arcing of electrical wires, components, and bleed air lines, which could result in arcing of exposed wires and burn a hole in the bleed air line or nearby hydraulic line, leading to a possible hydraulic fluid leak and fire in the engine nacelle compartment.
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Required Actions
Inspect electrical wires/components, hydraulic and bleed air tube assemblies at LH and RH inboard wing leading edge/battery box areas, LH/RH wing stations 51.167 to 81.174, and at all feed-through locations into the LH/RH inboard keelson. If chafing/arcing is found, reposition, repair, and/or replace all chafed electrical wires, components, and hydraulic and bleed air tube assemblies as required. Reposition the battery lead cables, cover four-gauge wires leaving the battery box with firesleeving and secure with clamps, and protect the battery power cable.
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Compliance Time
Before further flight
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Affected Aircraft
M7 Aerospace LP SA226 and SA227 series airplanes, including models SA226-AT, SA226-T, SA226-TC, SA227-AC, and SA227-AT, all serial numbers.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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