# Proposed AD 97-CE-120-AD: deHavilland Inc. Model Otter DHC-3 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-18-08
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 13, 1998, 63 FR 17970
- Comments due: May 13, 1998
- Became: [AD 98-18-08](https://openairdocs.org/ad/98-18-08)
- Docket: 97-CE-120-AD
- FR document: 98-9583
- Official PDF: https://openairdocs.org/files/sha256/ba/2b/ba2b15556be6b94745f5386e3606bc355ac5506743ef2d44e5dc34ade88264dd (from https://www.govinfo.gov/content/pkg/FR-1998-04-13/pdf/98-9583.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/04/13/98-9583/airworthiness-directives-dehavilland-inc-model-otter-dhc-3-airplanes
- Page: https://openairdocs.org/proposed/97-CE-120-AD

## Summary

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain deHavilland Inc. (deHavilland) Model Otter DHC-3 airplanes modified by supplemental type certificate (STC) No. SA3777NM. The proposed action would require modifying the airplane's electrical system. The actions specified by the proposed AD are intended to prevent electrical system failure, which, if not corrected, could result in the loss of the engine instruments or a possible electrical fire in the airplane's cockpit.

## Notices in this docket

- Apr 13, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-9583, comments due May 13, 1998 (https://www.federalregister.gov/documents/1998/04/13/98-9583/airworthiness-directives-dehavilland-inc-model-otter-dhc-3-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.