Wing — Cracking of the Wing Lower Skin at Wing Station 51 under the Drag Angle
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must examine aircraft and maintenance records within 10 months of the effective date to identify any repairs or modifications, then contact Viking within 11 months if such work exists. They must begin recording water landings within 30 days of the effective date and perform initial and repeat inspections per Service Bulletin 215-A568 Revision 4, completing initial inspections within 12 months for aircraft exceeding certain usage thresholds. Any damage found must be repaired before further flight, and inspection results reported to Viking as specified.
Summary
Canadian Airworthiness Directive CF-2019-07 addresses cracking of the wing lower skin at Wing Station 51 under the drag angle on Viking Air Ltd. CL-215-1A10 and CL-215-6B11 (CL-215T variant) aircraft, serial numbers 1001 through 1125. The directive mandates inspections and repairs based on Viking Service Bulletin 215-A568 Revision 4 to detect and correct fatigue damage that could lead to wing structure failure. It also requires operators to begin recording water landings to accurately track total operation cycles.
What changed
This new Airworthiness Directive introduces mandatory compliance with Viking Service Bulletin 215-A568 Revision 4, which includes updated inspection and repair procedures for wing lower skin cracking. It requires operators to track water landings for compliance calculations and mandates reporting of repairs and modifications to Viking. Additionally, it provides instructions for aircraft that have been previously inspected or modified and allows for alternative compliance methods if approved.
Why it matters
This directive is critical for maintaining the structural integrity of affected Viking CL-215 aircraft wings, preventing potential fatigue damage that could lead to wing failure. Operators and maintenance organizations must adjust their inspection programs and record-keeping to comply, ensuring continued airworthiness and safety. Compliance also supports regulatory adherence and helps avoid operational disruptions due to unaddressed structural issues.
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