# AD 84-21-03: Fitting Assembly (Rod End) Inspection

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A) and 10 more
- Effective: November 26, 1984
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-4939
- Registered aircraft: 99 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B369F5E722F8B6A4862569F2006A7E3D.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/84-21-03

## The airworthiness directive

84-21-03 McDONNELL DOUGLAS: Amendment 39-4939. Applies to McDonnell Douglas Model DC-9, and C-9 (Military) series airplanes, certificated in all categories. Compliance required as indicated unless previously accomplished. To prevent jamming of the elevator controls by a detached forward rod end, accomplish the following:

A. Within the next 650 hours time in service or 90 calendar days, whichever occurs first after the effective date of this AD, visually inspect the fitting assembly (rod end) part number (P/N) 3938704-1 and pushrod P/N 3938705-501, in accordance with McDonnell Douglas DC-9 Alert Service Bulletin A27-266, dated March 12, 1984, hereinafter referred to as ASB27-266, or later FAA approved revisions.

B. If results of visual inspection are satisfactory, accomplish paragraph 4 of Part 2, Accomplishment Instructions, of ASB27-266.

C. If results of visual inspection are unsatisfactory, proceed in accordance with paragraph 5, Accomplishment Instructions of ASB27-266.

NOTE: If rod end P/N SM4-6T3 (exclude DC-9-80 series) is required and not available, P/N SM4-6T may be substituted. The latter has only one grease fitting which must be oriented to allow access for scheduled lubrication.

D. Alternative inspections, modifications, or other actions which provide an equivalent level of safety may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director, Publications and Training, C1-750 (54-60). These documents also may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California.

This amendment becomes effective November 26, 1984.

## 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 19 of 25 models: DC-9-12, DC-9-15F, DC-9-41, DC-9-13, DC-9-34F, DC-9-81 (MD-81), DC-9-33F, DC-9-83 (MD-83)…

## 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: 99 (99 by airframe model, 0 by engine model)
- Makers: Mcdonnell Douglas 93, Douglas 6

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)
- [Mcdonnell Douglas DC-9-87](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87): 13 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-15F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-15f): 3 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-33F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-33f): 3 aircraft (airframe model)
- [Douglas DC-9-83](https://openairdocs.org/model/douglas-dc-9-83): 1 aircraft (airframe model)
- [Douglas DC9-15](https://openairdocs.org/model/douglas-dc9-15): 1 aircraft (airframe model)
- [Douglas DC-9-15F](https://openairdocs.org/model/douglas-dc-9-15f): 1 aircraft (airframe model)
- [Douglas DC-9-21](https://openairdocs.org/model/douglas-dc-9-21): 1 aircraft (airframe model)
- [Douglas DC-9-32F](https://openairdocs.org/model/douglas-dc-9-32f): 1 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32): 1 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-32F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32f): 1 aircraft (airframe model)
- [Douglas DC-9-33F](https://openairdocs.org/model/douglas-dc-9-33f): 1 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-87 (MD-87)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87-md-87): 1 aircraft (airframe model)

All 14 models: https://openairdocs.org/ad/84-21-03/models.md
Every aircraft: https://openairdocs.org/ad/84-21-03/aircraft.md

Its text cites no advisory circulars or STCs.

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