# AD 48-15-02: Oil Tank Vent Hose

- Type: Airworthiness directive
- Status: Current
- Products: Martin-Marietta 202
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C93D5C7BEE3B985B8625698A007309E0.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/48-15-02

## The airworthiness directive

48-15-02 MARTIN: Applies to Model 202 Aircraft.

Compliance required by July 1, 1948.

As a fire protection measure, replace the oil tank vent line (Martin P/N 2021A83751) running forward from the firewall, with fire resistant hose (Martin P/N 2021A84127 or equivalent).

(Martin Maintenance Note No. 28 dated January 22, 1948, covers this same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-795](https://openairdocs.org/tcds/A-795): Martin-Marietta Corporation; names 1 of 2 models: 202

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
