# Proposed AD FAA-2005-21595: Bombardier Model CL-215-1A10 (Water Bomber), CL-215-6B11 (CL215T Variant), and CL-215-6B11 (CL415 Variant) Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-18-05
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 22, 2005, 70 FR 36075
- Comments due: July 22, 2005
- Became: [AD 2005-18-05](https://openairdocs.org/ad/2005-18-05)
- Docket: FAA-2005-21595 (https://www.regulations.gov/docket/FAA-2005-21595, where comments are filed)
- Project: 2002-NM-321-AD
- FR document: 05-12302
- Official PDF: https://openairdocs.org/files/sha256/70/cc/70ccffa19e03cad9ae3b5224c1354638516800d50c334defc5ab604d4fff304f (from https://www.govinfo.gov/content/pkg/FR-2005-06-22/pdf/05-12302.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/06/22/05-12302/airworthiness-directives-bombardier-model-cl-215-1a10-water-bomber-cl-215-6b11-cl215t-variant-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/58A8032DEDD4257586257028006CA5EB.0001
- Page: https://openairdocs.org/proposed/FAA-2005-21595

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Bombardier Model CL-215-1A10 (Water Bomber), CL-215-6B11 (CL215T Variant), and CL-215-6B11 (CL415 Variant) series airplanes. The existing AD currently requires repetitive ultrasonic inspections to detect cracking of the lower caps of the wing front spar and rear spar, and corrective action if necessary. This proposed AD would reduce the threshold to do the initial inspections and revise the repetitive inspection interval. This proposed AD also adds a repetitive ultrasonic inspection of the wing lower skin. This proposed AD is prompted by reports of cracks in the front and rear spar lower caps. We are proposing this AD to detect and correct cracking of the lower caps of the wing front spar and rear spar, which could result in reduced structural integrity of the airplane.

## Notices in this docket

- Jun 22, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-12302, comments due Jul 22, 2005 (https://www.federalregister.gov/documents/2005/06/22/05-12302/airworthiness-directives-bombardier-model-cl-215-1a10-water-bomber-cl-215-6b11-cl215t-variant-and)

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