# STC SA1802SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Plattner, LLC, United States
- Description: Installation of a cargo door, cargo restraint bulkhead, heavy duty flooring, class E cargo compartment, cargo pallet restraint system, and provisions for 2 additional crew members.
- Status date: June 7, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/046E4FF18832D05985256CC10083D0CF.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1802SO

## ADs that name it (6)

- [AD 2001-26-04](https://openairdocs.org/ad/2001-26-04): Main Deck Cargo Door Structure and Fuselage Structure · Cargo door, cargo restraint bulkhead, heavy duty flooring… (Plattner STC SA1802SO or SA421NW). Effective Jan 30, 2002. Named in the applicability
- [AD 2000-09-01](https://openairdocs.org/ad/2000-09-01) (historical): Main Deck Cargo Door · McDonnell Douglas DC-8 Series with STC SA1802SO or SA421NW. Effective Jun 7, 2000. Named in the applicability
- [AD 98-26-51](https://openairdocs.org/ad/98-26-51): Main Deck Cargo Door · Cargo door, cargo restraint bulkhead, heavy duty flooring… (Plattner STC SA1802SO). Effective Feb 3, 1999. Named in the applicability
- [AD 93-20-02](https://openairdocs.org/ad/93-20-02) (historical): AFM Changes - Cargo Door Inspection · Cargo door, cargo restraint bulkhead, heavy duty flooring… (Plattner STC SA1802SO or SA421NW). Effective Nov 17, 1993. Named in the applicability
- [AD 92-08-14](https://openairdocs.org/ad/92-08-14): External Doubler Straps · Cargo door, cargo restraint bulkhead, heavy duty flooring… (Plattner STC SA1802SO). Effective May 29, 1992. Named in the applicability
- [AD T98-26-51](https://openairdocs.org/ad/T98-26-51): Main Deck Cargo Door · Cargo door, cargo restraint bulkhead, heavy duty flooring… (Plattner STC SA1802SO). Named in the applicability

## Approved models (5)

- McDonnell Douglas Corporation DC-8-61 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-62 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-63 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-71 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-73 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))

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