Pressure Blkhd
182 failure reports named the pressure blkhd in the last ten years, 308 since 1998, most often on the Boeing 737; the condition most often found was "cracked".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1998 | 3 |
| 1999 | 1 |
| 2003 | 2 |
| 2004 | 11 |
| 2005 | 10 |
| 2006 | 6 |
| 2007 | 2 |
| 2008 | 3 |
| 2009 | 31 |
| 2010 | 15 |
| 2011 | 10 |
| 2012 | 13 |
| 2013 | 17 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 5 |
| 2019 | 2 |
| 2020 | 18 |
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 65 |
| 2025 | 28 |
| 2026 | 31 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Airframe structure | 182 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
cracked97corroded24gouged19damaged13dented7canning5chafed4unknown3buckled2deformed1
Conditions found, as a table
| reports | |
|---|---|
| cracked | 97 |
| corroded | 24 |
| gouged | 19 |
| damaged | 13 |
| dented | 7 |
| canning | 5 |
| chafed | 4 |
| unknown | 3 |
| buckled | 2 |
| deformed | 1 |
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.
