# AD 47-10-17: Cabin Supercharger Rework

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed 49-46
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/38C46E134D0DE3A1862569AE004BF5FB.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-10-17

## The airworthiness directive

47-10-17 LOCKHEED: (Was Mandatory Note 19 of AD-763-3.) Applies to All Model 49 Serials Up to and Including 2075.

Compliance required prior to resumption of cabin supercharger operation.

Prior to resumption of cabin supercharger operation, the following Lockheed Service Bulletins must be complied with:

49/SB-107, revised November 22, 1946 - Replacement of Cabin Supercharger Drive Shafts.

49/SB-141, revised August 7, 1946 - Replacement of Cabin Supercharger.

49/SB-156, revised September 17, 1946 - Installation of Supercharger Oil Temperature Indicator.

The revision dates given for these three Bulletins are later than those listed in the Supplement to AD-763 (Special) dated September 25, 1946. Aircraft on which the cabin supercharging equipment was rendered operative in accordance with that Supplement should be checked for compliance with these later revisions dates within the next 150 hours of operation.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-763](https://openairdocs.org/tcds/A-763): Lockheed Martin Aeronautics Company; names 1 of 6 models: 49-46

## 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: 1 (1 by airframe model, 0 by engine model)
- Makers: Lockheed 1

Models with the most aircraft:

- [Lockheed 49-46](https://openairdocs.org/model/lockheed-49-46): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/47-10-17/models.md
Every aircraft: https://openairdocs.org/ad/47-10-17/aircraft.md

Its text cites no advisory circulars or STCs.

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