Boarding Step
No failure report names the boarding step. 26 FAA approvals let 5 companies make a replacement boarding step, American Eurocopter LLC holding the most (12).
Approved replacement parts 26 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a boarding step and sell it as an approved part for the models named. These are the companies holding such approvals for a boarding step:
For these models most: Messerschmitt-Bolkow-Blohm BO 105 (6), Dehavilland DHC-2 (5), Sikorsky S-76 (1), Cessna 172 Skyhawk (1), Cessna 170 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aerocet Incorporated | Boarding Step, AFT, LOWER 53-511-37-01 | Modification Part | Viking Air Limited DHC-2 MK.III | 2025-12-22 | current |
| Aerocet Incorporated | Boarding Step, AFT, MID 53-511-37-02 | Modification Part | Viking Air Limited DHC-2 MK.III | 2025-12-22 | current |
| Aerocet Incorporated | Boarding Step, FWD, LOWER 53-511-37-04 | Modification Part | Viking Air Limited DHC-2 MK.III | 2025-12-22 | current |
| Aerocet Incorporated | Boarding Step, FWD, UPPER 53-511-37-05 | Modification Part | Viking Air Limited DHC-2 MK.III | 2025-12-22 | current |
| Aerocet Incorporated | Boarding Step, AFT, UPPER 53-511-37-03 | Modification Part | Viking Air Limited DHC-2 MK.III | 2025-12-22 | current |
| Airbus Helicopters, INC. | Boarding Step Installation 105-E0005-6 | Modification Part | Airbus Helicopters... BO105C, S, LS A-1 | 2018-01-16 | current |
| Airbus Helicopters, INC. | Boarding Step Installation 105-E0005-2 | Modification Part | Airbus Helicopters... BO 105C, S, LS A-1 | 2018-01-16 | current |
| Airbus Helicopters, INC. | Boarding Step Installation 105-E0005-4 | Modification Part | Airbus Helicopters... BO 105C, S, LS A-1 | 2018-01-16 | current |
| Airbus Helicopters, INC. | Boarding Step Installation 105-E0005-1 | Modification Part | Airbus Helicopters... BO 105C, S, LS A-1 | 2018-01-16 | current |
| Airbus Helicopters, INC. | Boarding Step Installation 105-E0005-3 | Modification Part | Airbus Helicopters... BO 105C, S, LS A-1 | 2018-01-16 | current |
| Airbus Helicopters, INC. | Boarding Step Installation 105-E0005-5 | Modification Part | Airbus Helicopters... BO 105C, S, LS A-1 | 2018-01-16 | current |
| Fliegen Works INC | Boarding Step 22-17301-L | 22-17301-L | essna 170A, 170B, 172 | 2016-09-27 | current |
| Fliegen Works INC | Boarding Step 22-17301-R | 22-17301-R | Cessna 170A, 170B, 172 | 2016-09-27 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-5 | Modification Part | Eurocopter Canada BO 105 LS A-3, BO 105C, S | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-3 | Modification Part | Eurocopter Deutschland BO105C, S, LS A-1 | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-1 | Modification Part | Eurocopter Deutschland BO105C, S, LS A-1 | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-2 | Modification Part | Eurocopter Canada BO 105 LS A-3, BO 105C, S | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-4 | Modification Part | Eurocopter Deutschland BO105C, S, LS A-1 | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-6 | Modification Part | Eurocopter Deutschland BO105C, S, LS A-1 | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-5 | Modification Part | Eurocopter Deutschland BO105C, S, LS A-1 | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-3 | Modification Part | Eurocopter Canada BO 105 LS A-3, BO 105C, S | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-1 | Modification Part | Eurocopter Canada BO 105 LS A-3, BO 105C, S | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-6 | Modification Part | Eurocopter Canada BO 105 LS A-3, BO 105C, S | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-2 | Modification Part | Eurocopter Deutschland BO105C, S, LS A-1 | 2003-08-10 | current |
| American Eurocopter LLC | Boarding Step Installation 105-E0005-4 | Modification Part | Eurocopter Canada BO 105 LS A-3, BO 105C, S | 2003-08-10 | current |
| Keystone Helicopter Corporation | Boarding Step (kit) 98076-10B, to include all... | Modification parts | Sikorsky S-76A, S-76B, S-76C With STC... | 2001-05-16 | 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.