# AD 47-30-03: Wing Inspection for Identification

- Type: Airworthiness directive
- Status: Current
- Products: Cessna T-50
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 37 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/180ECBB6E8C2E0E086256A3400607156.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-30-03

## The airworthiness directive

47-30-03 CESSNA: (Was Mandatory Note 13 of AD-722-5.) Applies to All UC-78 and AT-17 Series Airplanes.

Compliance required prior to October 15, 1947.

Inspect the wing of 5,400- and 5,700-pound gross weight airplanes to determine that the wing has been properly identified as a 5,700-pound wing. The 5,700-pound wing has the following salient identification features:

  (a) Laminated (8 to 10 ply) birch plywood reinforcement on the rear face of the rear spar (instead of spruce block found on the 5,100-pound wing) extending continuously through the center section from nacelle to nacelle. Ends of this plywood plate are scarfed out just inboard of each nacelle bearing block.

  (b) Continuous plywood flanges 1 to 1 1/2 x 1/16-inch are found on both sides of the lower cap strips of wing ribs between the front and rear spars on 5,700-pound wings. 5/16 x 5/16 found in the 5,100-pound wing.

  (c) The diagonal in nose ribs of the 5,700-pound wing is 5/16 x 7/16 insteadof 5/16 x 5/16 found in the 5,100-pound wing.

(Wings which cannot be identified as outlined above are not eligible for certification above 5,100 pounds gross weight.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-722](https://openairdocs.org/tcds/A-722): Cessna Aircraft Company; names 1 of 1 models: T-50 (Army AT-17 and UC-78 series; Navy JRC-1)

## 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: 37 (37 by airframe model, 0 by engine model)
- Makers: Cessna 37

Models with the most aircraft:

- [Cessna T-50](https://openairdocs.org/model/cessna-t-50): 37 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/47-30-03/models.md
Every aircraft: https://openairdocs.org/ad/47-30-03/aircraft.md

Its text cites no advisory circulars or STCs.

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