Lock Screw
1 failure reports named the lock screw in the last ten years, 1 since 2018, most often on the Embraer EMB-145 ERJ 145; the condition most often found was "loose". 8 FAA approvals let 5 companies make a replacement lock screw, Lanair Research and Development INC holding the most (4).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 2018 | 1 |
Which system the reports file it under last ten years
Models most often reporting it last ten years
Models most reported, as a table
| reports | |
|---|---|
| Embraer EMB-145 ERJ 145 | 1 |
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| loose | 1 |
Engines most often reporting it
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a lock screw and sell it as an approved part for the models named. These are the companies holding such approvals for a lock screw:
For these models most: Embraer ERJ 190 E190 and E195 (3), Embraer ERJ 170 E170 and E175 (3), Israel Aircraft Industries 1124 (2), Sikorsky S-61 (1), Dehavilland DHC-6 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Lanair Research and Development INC | Lock Screw, Track LA171-00442-003 | 171-00442-003 | Embraer S.A. ERJ 170-100 STD, ERJ 170-100 LR, ERJ... | 2025-06-19 | current |
| Lanair Research and Development INC | Lock Screw, Track LA171-00442-003 | 171-00442-003 | Yaborã Indústria... ERJ 190-100 STD, ERJ 190-100 LR, ERJ... | 2021-12-07 | current |
| Lanair Research and Development INC | Lock Screw, Track LA171-00442-003 | 171-00442-003 | Yaborã Indústria... ERJ 170-100 STD, ERJ 170-100 LR, ERJ... | 2021-12-07 | current |
| Bcn Aerospace, INC. | Lock Screw, Leg assy, Nosewheel BCNC6UM1506-27 | C6UM1506-27 | Viking Air Limited DHC-6-100, DHC-6-200, DHC-6-300 | 2016-08-30 | current |
| Lanair Research and Development INC | Lock Screw, Track LA171-00442-003 | 171-00442-003 | Embraer S.A. ERJ 170-100 STD, ERJ 170-100 LR, ERJ... | 2013-03-24 | current |
| Gulfstream Aerospace LP | Lock Screw ED12959-1 | IAI ED12959-1 | Israel 1123, 1124 | 2001-06-06 | current |
| Galaxy Aerospace CO LP | Lock Screw ED12959-1 | IAI ED12959-1 | Israel 1123, 1124 | 2001-05-08 | current |
| Rotair Industries INC | Lock Screw R6135-20734-1 | S6135-20734-1 | Sikorsky S-61A/D(T.C.H2EA) S-61L/N/NM/R... | 1992-12-31 | 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.