# AD 87-16-08: Taxi Speed Indication System

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83)
- Effective: August 20, 1987
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-5697
- Registered aircraft: 72 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6BF68E5448EC432B862569F2006C8A54.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/87-16-08

## The airworthiness directive

87-16-08 MCDONNELL DOUGLAS: Amendment 39-5697. Applies to McDonnell Douglas Model DC-9-81, -82, and -83 series airplanes, fuselage numbers 909 through 1338 and 1340 through 1363, equipped with Taxi Speed Indication System, certificated in any category.

Compliance required as indicated, unless previously accomplished.

To prevent an inadvertent unannunciated loss of braking capability on one of the inboard wheels, accomplish the following:

A. Within 30 days after the effective date of this airworthiness directive (AD), deactivate the Taxi Speed Indication System in accordance with the Accomplishment Instructions of McDonnell Douglas DC-9 Alert Service Bulletin A32-221, Revision 1, dated May 15, 1987.

B. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Los Angeles 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 in order to comply with the requirements of this AD.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to the McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director, Publications and Training, C1-L65 (54-60). These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at 4344 Donald Douglas Drive, Long Beach, California.

This amendment becomes effective August 20, 1987.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A6WE](https://openairdocs.org/tcds/A6WE): The Boeing Company; names 3 of 25 models: DC-9-81 (MD-81), DC-9-83 (MD-83), DC-9-82 (MD-82)

## 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: 72 (72 by airframe model, 0 by engine model)
- Makers: Mcdonnell Douglas 71, Douglas 1

Models with the most aircraft:

- [Mcdonnell Douglas DC-9-83(MD-83)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-83-md-83): 49 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-82(MD-82)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82-md-82): 22 aircraft (airframe model)
- [Douglas DC-9-83](https://openairdocs.org/model/douglas-dc-9-83): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/87-16-08/models.md
Every aircraft: https://openairdocs.org/ad/87-16-08/aircraft.md

Its text cites no advisory circulars or STCs.

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