# STC SA5804NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Monogram Systems, United States
- Description: Installation of middle/left lavatory and middle/right lavatory.
- Applied: December 10, 1991
- Status date: December 22, 2003
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A23WE](https://openairdocs.org/tcds/A23WE)
- Certificate PDF: https://openairdocs.org/files/sha256/a0/4e/a04ea0fd512f2c3983de18351f1ed7fb7b673972d5392c750d16278917038972
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D54DDF537EE4F34086257D9C00596389.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5804NM

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Martin Corporation L-1011-385-3 ([TCDS A23WE](https://openairdocs.org/tcds/A23WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5804NM This certificate issued to: Monogram Systems 1500 Glenn Curtiss Street Carson, CA 90746 Certifies that the change in the type design for the following product with the limitations and conditions therefor as speoified hereon meets the airevorthiness requirement's of Part 25* of tho Federal Aviation Regulations. *Certification basis is set forth in Type Certificate Data Sheet A23WE Original Product Typo Certificate Number: A23WE Make: Lockheed Model: L-1011-385-3 Series Description of Type Design Change: Installation of Middle/Left Lavatory P/N 824131-7021 and Middle/Right Lavatory P/N 824131-7022 in the Lockheed L-1011-385-3 Series airplanes in accordance with Weber MDL 824131, Revision NC, dated February 2, 1993; or later FAA approved revision.

Limitations and Conditions: This approval should not be extended to other specific airplanes of this model series unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Woo TOMINISTRATO Manager, Technical & Admin. Support Staff (Signature) Los Angeles Aircraft Certification Office (Title)

## Every issue (1)

- December 22, 2003: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a0/4e/a04ea0fd512f2c3983de18351f1ed7fb7b673972d5392c750d16278917038972)

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