Carbon Seal
96 failure reports named the carbon seal in the last ten years, 579 since 1995, most often on the Embraer EMB-145 ERJ 145; the condition most often found was "leaking". 9 FAA approvals let 6 companies make a replacement carbon seal, Aviation Facilities INC holding the most (3).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 10 |
| 1996 | 10 |
| 1997 | 11 |
| 1998 | 16 |
| 1999 | 39 |
| 2000 | 20 |
| 2001 | 18 |
| 2002 | 25 |
| 2003 | 13 |
| 2004 | 21 |
| 2005 | 24 |
| 2006 | 35 |
| 2007 | 32 |
| 2008 | 32 |
| 2009 | 36 |
| 2010 | 27 |
| 2011 | 27 |
| 2012 | 30 |
| 2013 | 22 |
| 2014 | 20 |
| 2015 | 15 |
| 2016 | 21 |
| 2017 | 12 |
| 2018 | 13 |
| 2019 | 17 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 11 |
| 2025 | 5 |
| 2026 | 5 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Engine | 91 |
| Electrical power | 5 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| leaking | 56 |
| failed | 12 |
| damaged | 10 |
| worn | 5 |
| not reported | 3 |
| unknown | 2 |
| collapsed | 1 |
| cracked | 1 |
| defective | 1 |
| degraded | 1 |
Engines most often reporting it
Approved replacement parts 9 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a carbon seal and sell it as an approved part for the models named. These are the companies holding such approvals for a carbon seal:
For these models most: Airbus A321 (3), Embraer EMB-135 ERJ 135 and Legacy (2), Airbus A340 (2), Airbus A330 (2), Airbus A300 (2), Mcdonnell Douglas DC-9 (1), Mcdonnell Douglas Aircraft Co MD-88 (1), Bombardier CL-600 Challenger and CRJ (1), Boeing 767 (1), Boeing 747 (1), Airbus A320 (1), Airbus A319 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aviatron INC | Carbon Seal AVUS2711750-1-2 | 2711750-1 | MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series... | 2023-06-12 | current |
| Wencor LLC | Carbon Seal Option, No. 4 Bearing 3900432WE | 3900432 | BOEING 747-8F Series, 747-8 Series | 2017-08-09 | current |
| Jet Avion Corporation | Carbon Seal 3501212-3AFI | 3501212-3 | Airbus A300, A310, A300-600 | 2012-12-03 | current |
| Jet Avion Corporation | Carbon Seal 3501212-3AFI | 3501212-3 | Airbus A300, A310, A300-600 | 2012-11-15 | current |
| Jet Avion Corporation A Heico Aerospace Company | Carbon Seal JA779192-1 | 779192-1 | Pratt & Whitney PW2037, PW2037M, PW2040 | 2009-10-20 | current |
| Adpma LLC | Carbon Seal Assembly ADP49159-101 | Honeywell P/N 3863007-1 | McDonnell Douglas DC-9-82 (MD-82), MD-88 With... | 2008-05-29 | current |
| Aviation Facilities INC | Carbon Seal 5905487AFI | Hamilton Sundstrand p/n 5905487 | International Aero Engines V2522-A5, V2524-A5, V2527-A5 | 2005-11-02 | current |
| Aviation Facilities INC | Carbon Seal 5910350AFI | Hamilton Sundstrand p/n 5910350 | International Aero Engines V2522-A5, V2524-A5, V2527-A5 | 2005-11-02 | current |
| Aviation Facilities INC | Carbon Seal 3502449-1AFI | Boeing/Honeywell (Allied Signal) 3502449-1 | Boeing 767 where Honeywell (Allied Signal... | 2001-04-10 | 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.