# AD 83-16-03: Install Overspeed Limiter

- Type: Airworthiness directive
- Status: Current
- Products: Honeywell International LTS101-600A-2
- Effective: August 25, 1983
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Amendment: 39-4676
- Registered aircraft: 32 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/46B81D2E91084BE58625684200532488.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/83-16-03

## The airworthiness directive

83-16-03 AVCO LYCOMING: Amendment 39-4676. Applies to Avco Lycoming Model LTS101-600A-2 engines, all Serial Numbers prior to but not including LE 43559. Compliance is required as indicated unless already accomplished. To prevent possible engine failure due to overspeed, accomplish the following: Install Overspeed Limiter, P/N 4-301-235-04, per instructions provided in Avco Lycoming Service Bulletin No. LTS101A-73-0043, dated March 21, 1983, or equivalent method approved by the Manager, Engine Certification Branch, ANE-140, 12 New England Executive Park, Burlington, Massachusetts 01803. Compliance required as follows: A. Prior to 1,200 hours total time in service for engines with 1,000 or less hours total time in service on the effective date of this airworthiness directive, or B. Within the next 200 hours time in service for engines with more than 1,000 hours total time in service on the effective date of this airworthiness directive, or C. Before August 1, 1984,regardless of engine total time in service. NOTE: Refer to the pertinent operations and maintenance manuals for operational check procedures and requirements. Avco Lycoming Service Bulletin No. LTS101A-73-0043, dated March 21, 1983, identified and described in this directive is incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received this document from the manufacturer may obtain copies upon request to Avco Lycoming, Williamsport Division, Williamsport, Pennsylvania 17701. This document also may be examined at the Office of Regional Counsel, ANE-7, 12 New England Executive Park, Burlington, Massachusetts 01803. This amendment becomes effective August 25, 1983.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E5NE](https://openairdocs.org/tcds/E5NE): Intermountain Turbine Services Inc.; names 1 of 13 models: LTS101-600A-2

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 32 (0 by airframe model, 32 by engine model)
- Makers: Bell 12, Messerschmitt-Bolkow-Blohm 9, MBB 3, Messerschmitt 3, Aerospatiale 2, Eurocopter Deutschland 2, S N I A S 1

Models with the most aircraft:

- [Lycoming LTS-101 series](https://openairdocs.org/engine/lycoming-lts-101-series): 29 aircraft (engine model)
- [Lycoming LTS-101 600A series](https://openairdocs.org/engine/lycoming-lts-101-600a-series): 3 aircraft (engine model)

All 2 models: https://openairdocs.org/ad/83-16-03/models.md
Every aircraft: https://openairdocs.org/ad/83-16-03/aircraft.md

Its text cites no advisory circulars or STCs.

---
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.