# AD 47-50-02: Fuselage Bulkhead

- Type: Airworthiness directive
- Status: Current
- Products: Cessna 120 and 140
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 2,265 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C81536EA0910E7E186256A3400608643.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-50-02

## The airworthiness directive

47-50-02 CESSNA: Applies to 120 and 140 Aircraft Serial Numbers Up to and Including 14289.

Inspection required upon each 100 hours of operation until fuselage rear bulkhead (tail post) has been reinforced.

Inspect the lower right-hand corner of the cutout in the fuselage rear bulkhead for cracks which usually extend down to the rivet holes at the nearest anchor nut. If cracks are found, install the new type bulkhead with reinforcement channel added per Cessna Drawing No. 0412169.

(Cessna Service Letter No. 46 dated July 31, 1947, covers this same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-768](https://openairdocs.org/tcds/A-768): Textron Aviation Inc.; names 2 of 2 models: 140, 120

## 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: 2,265 (2,265 by airframe model, 0 by engine model)
- Makers: Cessna 2,265

Models with the most aircraft:

- [Cessna 140](https://openairdocs.org/model/cessna-140): 1,605 aircraft (airframe model)
- [Cessna 120](https://openairdocs.org/model/cessna-120): 660 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/47-50-02/models.md
Every aircraft: https://openairdocs.org/ad/47-50-02/aircraft.md

Its text cites no advisory circulars or STCs.

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