# AD 60-03-04: Propeller Blades

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-6, DC-6A, DC-6B and Propeller Blades
- Superseded by: Nothing supersedes this AD
- Product type: Appliance
- Registered aircraft: 17 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/63DB5BDBD6E543328625697000645F6F.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/60-03-04

## The airworthiness directive

60-03-04 HAMILTON STANDARD: Amdt. 91 Part 507 Federal Register January 26, 1960. Applies to 6895-8 Aluminum Alloy Propeller Blades Installed On Douglas DC-6, DC-6A, and DC-6B Aircraft.

Compliance required as indicated.

In order to minimize the possibility of additional 6895-8 blade failures occurring between overhaul on DC-6, DC-6A, or DC-6B aircraft due to undetected blade damage, the face alignment check required by AD 58-22-01 must be supplemented as specified:

  (a) Blades which have not been checked for face alignment must be checked at overhaul as required by AD 58-22-01 or by April 15, 1960, whichever comes first, and thereafter at intervals not to exceed 1,000 flight hours.

  (b) Blades which have been checked for face alignment at overhaul as required by AD 58-22-01 and which by April 15, 1960, will have been in operation in excess of 1,000 flight hours since the last face alignment check was made must have a new face alignment check made not later than April 15, 1960, and thereafter at intervals not to exceed 1,000 flight hours.

  (c) Blades which have been checked for face alignment at overhaul as required by AD 58-22-01 and which by April 15, 1960, will have been in operation less than 1,000 flight hours since the last face alignment check was made must have new face alignment checks made at intervals not to exceed 1,000 flight hours.

Blades which are checked and found not to meet the limits specified in Hamilton Standard Service Bulletins Nos. 546, 546A, and 602 shall be removed from service and treated according to Service Bulletin 596. Face alignment checks between overhauls may be made with blade alignment gages as specified in Service Bulletin 602. (Hamilton Standard Service Bulletins Nos. 546, 546A, 596, and 602 cover this same subject.)

This supplements AD 58-22-01 for Model 6895-8 blades installed on Douglas DC-6, DC-6A, and DC-6B aircraft only.

Revised April 9, 1960, to all persons not receiving individual notice by telegram dated March 4, 1960.

## 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/60-03-04/models.md
Every aircraft: https://openairdocs.org/ad/60-03-04/aircraft.md

Its text cites no advisory circulars or STCs.

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