# AD 48-02-04: Brake Adjusting Pin Replacement

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-6, DC-6A and DC-6B
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Registered aircraft: 17 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9669BA56A006EAE1862569BC005027B8.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/48-02-04

## The airworthiness directive

48-02-04 DOUGLAS: Applies to DC-6 Serial Numbers 42854 Through 42880; 42882 Through 42896; 43000 Through 43017; 43035 Through 43038; 43055; 43056; 43062, and 43063.

Compliance required by the next No. 3 inspection.

To prevent the brake lining from becoming wedged between brake disc and housing, replace the present adjustment pin Goodyear P/N 511940-1 and spring plate Goodyear P/N 512139 by the single piece adjusting pin Goodyear P/N 9510744.

(Douglas Service Bulletin DC-6 No. 90 covers this same subject.)

## Affected data sheets (3) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 6A3](https://openairdocs.org/tcds/6A3): The Boeing Company; names 1 of 3 models: DC-6A
- [TCDS 6A4](https://openairdocs.org/tcds/6A4): The Boeing Company; names 1 of 2 models: DC-6B
- [TCDS A-781](https://openairdocs.org/tcds/A-781): The Boeing Company; names 1 of 1 models: DC-6

## 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: 17 (17 by airframe model, 0 by engine model)
- Makers: Douglas 17

Models with the most aircraft:

- [Douglas DC-6B](https://openairdocs.org/model/douglas-dc-6b): 9 aircraft (airframe model)
- [Douglas DC-6A](https://openairdocs.org/model/douglas-dc-6a): 7 aircraft (airframe model)
- [Douglas DC-6](https://openairdocs.org/model/douglas-dc-6): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/48-02-04/models.md
Every aircraft: https://openairdocs.org/ad/48-02-04/aircraft.md

Its text cites no advisory circulars or STCs.

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