AD 2008-25-03

final rule
Data completeness: 70%

Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) Airplanes and Model CL-600-2D24 (Regional Jet Series 900) Airplanes

AD Number
2008-25-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2008-1007
FR Citation
73 FR 75312

Applicability

TypeManufacturerModelDetails
aircraft Bombardier Various Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) Airplanes and Model CL-600-2D24 (Regional Jet Series 900) Airplanes
aircraft Aviat Various Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) Airplanes and Model CL-600-2D24 (Regional Jet Series 900) Airplanes

Unsafe Condition

Due to the close proximity of intrinsically safe fuel system wiring with other wiring, a single failure from wire chafing at various locations of the fuselage could result in an ignition source inside the fuel tank. Additionally, chafing of the temperature sensor wiring against high power wiring in the avionics compartment could lead to overheating of the temperature sensor and hot surface ignition, potentially causing a fuel tank explosion.

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Required Actions

Within 4,500 flight hours after the effective date, modify the fuel system wiring along the fuselage and in the avionics compartment by installing protective conduit and spacers, in accordance with Bombardier Service Bulletin 670BA-24-011, Revision C, dated November 28, 2005. Actions done before the effective date in accordance with earlier revisions of the service bulletin are acceptable for compliance.

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Compliance Time

Within 4,500 flight hours after the effective date

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Affected Aircraft

Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, serial numbers 10003 through 10169 inclusive, and Model CL-600-2D24 (Regional Jet Series 900) airplanes, serial numbers 15001 through 15030 inclusive.

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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