What it covers
The portion of the engine compressor bleed air system which is used to ventilate engine compartments and accessories. Does not include the engine bleed control valve which is filed in JASC code 7532. Typical parts are jet pumps, vortex generators, valve, actuator, and associated parts and circuitry used to control bleed air to engine accessory cooling systems.
Service difficulty reports · 328
Reports filed under 7520, newest first.
| 1996 | 4 |
|---|---|
| 1997 | 5 |
| 1998 | 4 |
| 1999 | 4 |
| 2001 | 7 |
| 2002 | 3 |
| 2003 | 7 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 6 |
| 2008 | 4 |
| 2009 | 4 |
| 2010 | 10 |
| 2011 | 25 |
| 2012 | 14 |
| 2013 | 24 |
| 2014 | 11 |
| 2015 | 9 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 35 |
| 2020 | 21 |
| 2021 | 14 |
| 2022 | 34 |
| 2023 | 23 |
| 2024 | 9 |
| 2025 | 16 |
| 2026 | 9 |
SDR YENA2026082400696Warning Message · illuminatedFLT 72, EDI-JFK. (ETOPS) AFTER LANDING, ENG 2 TURB COOL FAULT. CAUTION MSG ( TCC/TACC VALVE ). OPENSDR SWAA2026081028117Bracket · crackedNR 1 ENGINE LPTACC LOWER MANIFOLD SUPPORT BRACKET AT 9 O'CLOCK POSITION WAS CRACKED AT FWD ATTACH POINT. R & R NR 1 ENGINE LPTACC LOWER MANIFOLD SUPPORT BRACKET AT 9 O'CLOCK POSITION IAW AMM 75-24-03SDR SWAA2026081089026Bracket · crackedNR 1 ENGINE, LPTACC LOWER MANIFOLD SUPPORT BRACKET JUST BELOW THE 9 O'CLOCK POSITION WAS CRACKED AT FWD ATTACH POINT. R & R NR 1 ENG, LPTACC LOWER MANIFOLD SUPPORT BRACKET JUST BELOW THE 9 O'CLOCK POSITION IAW AMM 75-24-03.
See all 328 reports