# AD 84-20-04: Eyebolt Holes Modification

- Type: Airworthiness directive
- Status: Current
- Products: de Havilland Aircraft Co., Ltd., The D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA and D.H.114 Heron Series 2X
- Effective: November 5, 1984
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small/large airplane
- Amendment: 39-4924
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ED7314E0FA7E23A1862569EC005FEEA9.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/84-20-04

## The airworthiness directive

84-20-04 BRITISH AEROSPACE, INC.: Amendment 39-4924. Applies to Model DH-114 Heron series 2A, 2DA, and 2X airplanes certificated in all categories. Compliance is required as indicated. To prevent fatigue failure of the tailplane upper pick-up eyebolts, accomplish the following within 90 days after the effective date of this AD, unless already accomplished:

A. Remove the eyebolts, modify the eyebolt holes, and install new eyebolts in accordance with paragraphs 4.1, 4.2, and 4.3, respectively, of British Aerospace Aircraft Group Technical News Sheet No. F.21, Issue 1, dated January 8, 1979.

B. Alternate means of compliance which provide an equivalent level of safety maybe used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.This amendment becomes effective November 5, 1984.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-816](https://openairdocs.org/tcds/A-816): Acro Aeronautical Services Ltd; names 3 of 3 models: D.H.114 Heron Series 2DA, D.H.114 Heron Series 2A, D.H.114 Heron Series 2X

## 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: 1 (1 by airframe model, 0 by engine model)
- Makers: Dehavilland 1

Models with the most aircraft:

- [Dehavilland DH 114 HERON 2X](https://openairdocs.org/model/dehavilland-dh-114-heron-2x): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/84-20-04/models.md
Every aircraft: https://openairdocs.org/ad/84-20-04/aircraft.md

Its text cites no advisory circulars or STCs.

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