# Proposed AD FAA-2005-20727: Bombardier Model DHC-8-400, -401, and - 402 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-11-11
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 30, 2005, 70 FR 16170
- Comments due: April 29, 2005
- Became: [AD 2005-11-11](https://openairdocs.org/ad/2005-11-11)
- Docket: FAA-2005-20727 (https://www.regulations.gov/docket/FAA-2005-20727, where comments are filed)
- Project: 2004-NM-148-AD
- FR document: 05-6248
- Official PDF: https://openairdocs.org/files/sha256/7d/19/7d198e3f3937a9a9627deab75aeaf03f97c9873747eb7abbd91ab5e15c89aef5 (from https://www.govinfo.gov/content/pkg/FR-2005-03-30/pdf/05-6248.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/03/30/05-6248/airworthiness-directives-bombardier-model-dhc-8-400--401-and--402-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C1BD4DF6E7531BE286256FD4007253B2.0001
- Page: https://openairdocs.org/proposed/FAA-2005-20727

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model DHC-8-400, -401, and -402 airplanes. This proposed AD would require repetitive inspections to detect discrepancies of the attachment fittings of the outboard flap front spar at flap track Number 4 and Number 5 locations, and corrective actions if necessary. This proposed AD also would require eventual replacement of the attachment fittings as terminating action for the repetitive inspections. This proposed AD is prompted by the discovery of several airplanes that have loose flap front spar attachment fittings at flap track Number 4 and Number 5 locations. We are proposing this AD to prevent the attachment fittings from becoming detached, and consequent loss of control of the airplane.

## Notices in this docket

- Mar 30, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-6248, comments due Apr 29, 2005 (https://www.federalregister.gov/documents/2005/03/30/05-6248/airworthiness-directives-bombardier-model-dhc-8-400--401-and--402-airplanes)

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