Fire Protection — Inspection and Replacement of Defective Cargo Fire Extinguisher Containers
- Published
- Effective
- Deadline
- Replaces
- 2022-66
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect the serial numbers of HRD and LRD cargo fire extinguisher containers within 1000 flight hours or 6 months from 15 August 2024, whichever occurs first. Affected containers must be replaced within 4500 or 8800 flight hours depending on whether one or both containers are affected, counted from 8 December 2022. Installation of affected containers without the proper ink-stamp marking is prohibited from 8 December 2022 onward.
Summary
The Canadian Airworthiness Directive CF-2022-66R1 addresses fire protection concerns related to the inspection and replacement of defective cargo fire extinguisher containers on MHI RJ Aviation ULC model CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, and CL-600-2E25 aircraft. It mandates inspection of serial numbers of high rate of discharge (HRD) and low rate of discharge (LRD) cargo fire extinguisher containers and replacement of affected units to ensure proper fire suppression capabilities. This directive updates previous requirements to reflect new identification markings on modified containers.
What changed
This revision supersedes AD CF-2022-66 and incorporates changes due to a superseding service bulletin from the manufacturer Kidde, which introduced a new ink-stamp marking (circled “A” replacing circled “G”) on compliant cargo fire extinguisher containers. The updated directive requires compliance with the revised MHI RJ Aviation Service Bulletin 670BA-26-014 Revision B dated 19 June 2024, reflecting these new markings and inspection procedures.
Why it matters
This directive is critical for aviation professionals to maintain the effectiveness of cargo fire suppression systems, preventing potential fire hazards caused by improperly seated Halon metering devices in extinguisher containers. Operators, maintenance organizations, and compliance teams must ensure timely inspections and replacements to avoid reduced fire extinguishing performance, which could compromise aircraft safety during flight.
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