# Proposed AD FAA-2014-0077: Air Tractor, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-16-17
- Products: Air Tractor
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 12, 2014, 79 FR 8350
- Comments due: March 31, 2014
- Became: [AD 2014-16-17](https://openairdocs.org/ad/2014-16-17)
- Docket: FAA-2014-0077 (https://www.regulations.gov/docket/FAA-2014-0077, where comments are filed)
- Project: 2013-CE-021-AD
- FR document: 2014-03024
- Official PDF: https://openairdocs.org/files/sha256/0c/72/0c721ec820198998519bcf93baff0a35f431c4e305b411b0970103fef579b36e (from https://www.govinfo.gov/content/pkg/FR-2014-02-12/pdf/2014-03024.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/02/12/2014-03024/airworthiness-directives-air-tractor-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/76FD5967ABD0424686257C7D004C8A03.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0077

## Summary

We propose to supersede Airworthiness Directive (AD) 2010-17- 18 R1, which applies to certain Air Tractor, Inc. Models AT-802 and AT- 802A airplanes. AD 2010-17-18 R1 currently requires repetitively inspecting (using the eddy current method) the two outboard fastener holes in both of the wing main spar lower caps at the center splice joint for cracks; repairing or replacing any cracked spar; changing the safe life for certain serial number ranges; and sending the inspection results, only if cracks are found, to the FAA. Since we issued AD 2010- 17-18 R1, we have determined that the safe life for the wing main spar lower caps should apply to all AT-802 and AT-802A airplanes regardless of configuration or operational use. This proposed AD would retain all actions of AD 2010-17-18 R1 and expand the applicability to include all serial numbers regardless of configuration or operational use. We are proposing this AD to correct the unsafe condition on these products.

## Notices in this docket

- Feb 12, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-03024, comments due Mar 31, 2014 (https://www.federalregister.gov/documents/2014/02/12/2014-03024/airworthiness-directives-air-tractor-inc-airplanes)

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