# Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes
> **Rule** · Final rule; request for comments. · Published 2010-12-30 · Effective 2011-01-14 · 75 FR 82219
## Document
- **Document number:** 2010-32905
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 75 FR 82219
- **Publication date:** 2010-12-30
- **Effective date:** 2011-01-14
- **FAA docket:** Docket No. FAA-2010-0827
## Abstract

We are revising an existing airworthiness directive (AD) for Air Tractor, Inc. (Air Tractor) Models AT-802 and AT-802A airplanes. That AD currently requires you to repetitively inspect (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 and repair or replace any cracked spar, and changes the safe life for certain serial (SN) ranges. This AD retains the actions of AD 2010-17-18 and reduces the applicability from all serial numbers beginning with SN- 0001 as required by the previous AD to SN-0001 through SN-0269. This AD was prompted by our evaluation of a comment from David Ligon, Air Tractor, and our determination that we should reduce the applicability from that already required by the previous AD. We are issuing this AD to detect and correct cracks in the wing main spar lower cap at the center splice joint, which could result in failure of the spar cap and lead to wing separation and loss of control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/12/30/2010-32905/airworthiness-directives-air-tractor-inc-models-at-802-and-at-802a-airplanes)
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