# AD 90-19-03: Main Landing Gear System

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-38-112
- Effective: October 15, 1990
- Published: September 5, 1990
- Issued: August 27, 1990
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-6718
- Docket: 90-CE-03-AD
- Registered aircraft: 442 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/67C3496A0DB8D179862569A700559BAA.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/90-19-03

## The airworthiness directive

90-19-03 PIPER: Amendment 39-6718. Docket No. 90-CE-03-AD.

Applicability: Model PA-38-112 (all serial numbers) airplanes certificated in any category.

Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished. To preclude loosening of the landing gear attachments and possible gear separation, accomplish the following:

  (a) Modify the main landing gear system in accordance with Piper Service Bulletin 673B, dated October 2, 1986.

  (b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

  (c) An alternate method of compliance or adjustment of the compliance time, which provides an equivalent level of safety, may be approved by the Manager, Atlanta Aircraft Certification Office, 1669 Phoenix Parkway, Suite 210C, Atlanta, Georgia 30349.

NOTE: The request should be forwarded through an FAA Maintenance Inspector, who may add comments and send it to the Manager, Atlanta Aircraft Certification Office. All persons affected by this directive may obtain copies of the document referred to herein upon request to the Piper Aircraft Corporation, 2926 Piper Drive, Vero Beach, Florida 32960, telephone (407) 567-4361; or may examine this document at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

Airworthiness Directive 90-19-03 supersedes AD 83-05-04 (Amendment 39-4581) which superseded AD 80-11-09 (Amendment 39-3779).

This amendment (39-6718, AD 90-19-03) becomes effective on October 15, 1990.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A18SO](https://openairdocs.org/tcds/A18SO): Piper Aircraft Inc.; names 1 of 1 models: PA-38-112

## 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: 442 (442 by airframe model, 0 by engine model)
- Makers: Piper 442

Models with the most aircraft:

- [Piper PA-38-112](https://openairdocs.org/model/piper-pa-38-112): 442 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/90-19-03/models.md
Every aircraft: https://openairdocs.org/ad/90-19-03/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.