# Proposed AD 96-NM-143-AD: Gulfstream Aerospace Model G-159 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-25-02
- Products: Gulfstream Aerospace
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: July 12, 2006, 71 FR 39242
- Comments due: August 7, 2006
- Became: [AD 2006-25-02](https://openairdocs.org/ad/2006-25-02)
- Docket: 96-NM-143-AD
- FR document: E6-10911
- Official PDF: https://openairdocs.org/files/sha256/a0/30/a030bbc9bedd2aac8ac92e0b9d63d749ff4a2ee10abb0fee5e2aa734955aa86b (from https://www.govinfo.gov/content/pkg/FR-2006-07-12/pdf/E6-10911.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/07/12/E6-10911/airworthiness-directives-gulfstream-aerospace-model-g-159-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6681640D7EDC3295862571A900584408.0001
- Page: https://openairdocs.org/proposed/96-NM-143-AD

## Summary

This document revises an earlier supplemental notice of proposed rulemaking (NPRM), applicable to all Gulfstream Aerospace Corporation Model G-159 airplanes, that would have required repetitive non-destructive testing inspections to detect corrosion of the skin of certain structural assemblies, and corrective action if necessary. The first supplemental NPRM also would have required x-ray and ultrasonic inspections to detect corrosion and cracking of the splicing of certain structural assemblies, and repair if necessary. This new action revises the proposed rule by limiting the time certain repetitive inspections may be repeated before corrective action must be taken. The actions specified by this new proposed supplemental AD are intended to detect and correct corrosion and cracking of the lower wing plank splices and spot-welded skins of certain structural assemblies, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Jun 6, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-14145, comments due Jul 23, 2001 (https://www.federalregister.gov/documents/2001/06/06/01-14145/airworthiness-directives-gulfstream-aerospace-corporation-model-g-159-airplanes)
- Mar 21, 2006: Supplemental notice of proposed rulemaking; reopening of comment period., FR document E6-4050, comments due Apr 17, 2006 (https://www.federalregister.gov/documents/2006/03/21/E6-4050/airworthiness-directives-gulfstream-aerospace-corporation-model-g-159-airplanes)
- Jul 12, 2006: Supplemental notice of proposed rulemaking; reopening of comment period., FR document E6-10911, comments due Aug 7, 2006 (https://www.federalregister.gov/documents/2006/07/12/E6-10911/airworthiness-directives-gulfstream-aerospace-model-g-159-airplanes)

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