Stop Block
No failure report names the stop block. 24 FAA approvals let 9 companies make a replacement stop block, Cascade Aviation Services INC holding the most (12).
Approved replacement parts 24 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a stop block and sell it as an approved part for the models named. These are the companies holding such approvals for a stop block:
For these models most: Boeing 757 (14), Boeing 737 (4), Embraer EMB-145 ERJ 145 (3), Embraer EMB-135 ERJ 135 and Legacy (3), Cessna 208 Caravan (2), Boeing 777 (2), Boeing 767 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Lanair Research and Development INC | Stop Block LA145-33666-401 | 145-33666-401 | Embraer S.A. EMB-145, EMB-145ER, EMB-145MR | 2023-05-31 | current |
| Lanair Research and Development INC | Stop Block LA145-33666-401 | 145-33666-401 | Embraer S.A. EMB-145, EMB-145ER, EMB-145MR | 2017-04-13 | current |
| Able Aerospace Services, INC. | Stop Block 3A044-0231AA | 3A044-0231 | BOEING 737-600 Series, 737-700 Series,... | 2017-02-01 | current active |
| Able Engineering and Component Services, INC. | Stop Block 3A044-0231AA | 3A044-0231 | The Boeing Company 737-600 Series, 737-700 Series,... | 2017-02-01 | current active |
| Cascade Aviation Services INC | Stop Block Assy 706-12261-27 | 706-12261-27 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-57 | 706-12251-57 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-65 | 706-12251-65 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-58 | 706-12251-58 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-62 | 706-12251-62 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block 706-12251-50 | 706-12251-50 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12261-28 | 706-12261-28 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-66 | 706-12251-66 | Boeing 757-200 | 2016-05-25 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-61 | 706-12251-61 | Boeing 757-200 | 2016-05-25 | current |
| Aviation Materials Management INC | STOP BLOCK 69-52227-3 | 69-52227-3 | Boeing 737-200 SERIES, 737-200C SERIES,... | 2013-03-25 | current |
| Lanair Research and Development INC | Stop Block LA145-33666-401 | 145-33666-401 | EMBRAER EMB-145, EMB-145ER, EMB-145MR | 2013-03-24 | current |
| Blackhawk Modifications INC | Fwd. Stop Block 200803-504-075 | Modification Parts | Cessna 208B | 2012-04-15 | current |
| Blackhawk Modifications INC | Aft Stop Block 200803-504-074 | Modification Parts | Cessna 208B | 2012-04-15 | current |
| Aerospace Welding Minneapolis, INC. | Fwd Stop Block 200803-504-075 | Modification Part | Cessna Caravan 208B | 2012-03-19 | current |
| Aerospace Welding Minneapolis, INC. | Aft Stop Block 200803-504-074 | Modification Part | Cessna Caravan 208B | 2012-03-19 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12251-57,... | 706-12251-57, 706-12251-58, 706-12251-61,... | Boeing 757-200 | 2009-05-04 | current |
| Cascade Aviation Services INC | Stop Block 706-12251-50 | 706-12251-50 | Boeing 757-200 | 2009-05-04 | current |
| Cascade Aviation Services INC | Stop Block Assy 706-12261-27, 706-12261-28 | 706-12261-27, 706-12261-28 | Boeing 757-200 | 2009-05-04 | current |
| Gulfstream Aerospace Corporation | Stop Block 30-4340001-51 | Modification Part | Gulfstream Aerospace LP Galaxy Gulfstream 200 | 2007-04-18 | current |
| Gemini Engineering | STOP BLOCK 69-52227-3 | 69-52227-3 | Boeing 737-200 Series, 737-200C Series,... | 2006-07-30 | 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.