AD 2008-12-16

final rule
Data completeness: 80%

Airworthiness Directives; M7 Aerospace LP SA226 and SA227 Series Airplanes

AD Number
2008-12-16
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2008-0313
FR Citation
73 FR 34615

Applicability

TypeManufacturerModelDetails
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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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