# AD 87-04-09: Landing Gear Legs

- Type: Airworthiness directive
- Status: Current
- Products: Helio H-700 and H-800
- Effective: March 9, 1987
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-5533
- Registered aircraft: 10 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FDD554242743E33B86256A4E0050D1FE.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/87-04-09

## The airworthiness directive

87-04-09 HELIO: Amendment 39-5533. Applies to Models H-700 and H-800 airplanes (all serial numbers) certificated in any category.

Compliance: Required as indicated, unless already accomplished.

To assure airworthiness of the composite main landing gear legs, accomplish the following:

  (a) Within the next 100 hours TIS after the effective date of this AD and each 100 hours TIS thereafter, remove landing gear fairings, if installed, and visually inspect the edges of the composite main landing gear legs for evidence of delamination. Delamination is evidenced by longitudinal splitting between the fiberglass plies. This could occur anywhere along the span of the landing gear leg. If any delamination is found, prior to further flight, install FAA-approved right and left metallic landing gear legs. NOTE: On the effective date of this AD, the only known FAA-approved replacement landing gear is per STC SA2171CE.

  (b) If, in between the inspections required in paragraph (a) above, it is observed that the wings do not appear level, or one side of the airplane appears to be drooping, prior to further flight, conduct the inspections and replacement, If necessary, required in paragraph (a) of this AD.

  (c) The inspection required in paragraphs (a) and (b) are no longer required when FAA-approved metallic landing gear legs have been installed.

  (d) Ferry permits issued in accordance with FAR 21.197 and equivalent methods of compliance with this AD may be used if approved by the Manager, Wichita Aircraft Certification Office, Federal Aviation Administration, 1801 Airport Road, Room 100, Wichita, Kansas 67209; Telephone (316) 946-4400.

All persons affected by this directive may obtain copies of the documents referred to herein upon request to the Federal Aviation Administration, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106.

This amendment becomes effective on March 9, 1987.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A8](https://openairdocs.org/tcds/1A8): Helio Alaska Inc.; names 2 of 9 models: H-800, H-700

## 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: 10 (10 by airframe model, 0 by engine model)
- Makers: Helio 10

Models with the most aircraft:

- [Helio H800](https://openairdocs.org/model/helio-h800): 6 aircraft (airframe model)
- [Helio H-700](https://openairdocs.org/model/helio-h-700): 4 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/87-04-09/models.md
Every aircraft: https://openairdocs.org/ad/87-04-09/aircraft.md

## Related documents

- [STC SA2171CE](https://openairdocs.org/stc/SA2171CE): Replacement of fiberglass main landing gear legs with aluminum parts.. Helio Alaska Inc., Cited in the text

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