# Proposed AD FAA-2007-29066: Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-23-04
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 31, 2007, 72 FR 50288
- Comments due: October 1, 2007
- Became: [AD 2007-23-04](https://openairdocs.org/ad/2007-23-04)
- Docket: FAA-2007-29066 (https://www.regulations.gov/docket/FAA-2007-29066, where comments are filed)
- Project: 2007-NM-147-AD
- FR document: E7-17282
- Official PDF: https://openairdocs.org/files/sha256/84/22/842209efd402516b49896fce80c63ee930b3c90e99a5845be32059e5fe25106c (from https://www.govinfo.gov/content/pkg/FR-2007-08-31/pdf/E7-17282.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/08/31/E7-17282/airworthiness-directives-bombardier-model-dhc-8-102--103--106--201--202--301--311-and--315-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/54D8C30DC8057FD2862573480054B8AE.0001
- Page: https://openairdocs.org/proposed/FAA-2007-29066

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

It has been discovered in several cases that clamp bolts of the elevator spring tab mechanism were not installed in the correct orientation. Bolts have been found installed with bolt heads on the lower position and in two cases, some bolts, nuts and washers [hardware] were found to be loose or missing. Detachment of an elevator spring tab mechanism clamp bolt could lead to jamming of the elevator control system and reduced controllability of the aircraft.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Aug 31, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-17282, comments due Oct 1, 2007 (https://www.federalregister.gov/documents/2007/08/31/E7-17282/airworthiness-directives-bombardier-model-dhc-8-102--103--106--201--202--301--311-and--315-airplanes)

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