Cabin Entry
No failure report names the cabin entry. 5 FAA approvals let 2 companies make a replacement cabin entry, Sierra Industries, LTD. holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a cabin entry and sell it as an approved part for the models named. These are the companies holding such approvals for a cabin entry:
For these models most: Cessna A185 Skywagon (2), Cessna 185 Skywagon (2), Cessna 180 Skywagon (2), Cessna 170 (2), Cessna S550 (1), Cessna 525 CitationJet (CJ series) (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Sierra Industries, LTD. | Cabin Entry Step Assy. Kit As specified by drawings... | Modification Part | Textron Aviation, Inc. 500. 550, S550 & 560 | 2019-12-09 | current |
| Sierra Industries, LTD. | Cabin Entry Step Assy. Kit As specified by drawings... | Modification Part | Textron Aviation, Inc. 525, 525A, & 525B | 2019-12-09 | current |
| Sierra Industries, LTD. | Cabin Entry Step Assy. Kit As specified by drawings... | Modification Part | Textron Aviation, Inc. 501, 551 | 2019-12-09 | current |
| Mcfarlane Aviation INC | Cabin Entry Step, LH WAC711006-1 | 0511111, 0711006-1 | Cessna 170 s/n all, 170A s/n all, 170B s/n all | 2013-02-24 | current |
| Mcfarlane Aviation INC | Cabin Entry Step, RH WAC711006-2 | 0511111-1, 0711006-2 | Cessna 170 s/n all, 170A s/n all, 170B s/n all | 2013-02-24 | current |
Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.