What it covers
The system which sense, measures, and indicates the engine pressure ratio (EPR) of an turbine engine. The system measures the difference between the compressor inlet pressure and the turbine discharge pressure. Typical parts are sensor, transducer, transmitter, probe, etc.
Service difficulty reports · 456
Reports filed under 7711, newest first.
| 1995 | 38 |
|---|---|
| 1996 | 59 |
| 1997 | 44 |
| 1998 | 26 |
| 1999 | 20 |
| 2000 | 16 |
| 2001 | 21 |
| 2002 | 27 |
| 2003 | 12 |
| 2004 | 30 |
| 2005 | 28 |
| 2006 | 9 |
| 2007 | 5 |
| 2008 | 10 |
| 2009 | 5 |
| 2010 | 11 |
| 2011 | 12 |
| 2012 | 3 |
| 2013 | 2 |
| 2014 | 6 |
| 2015 | 9 |
| 2016 | 13 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 3 |
| 2026 | 6 |
SDR AALA202610107756Relay · fault messageAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO MIA DUE TO THE FLIGHT CREW REPORTING ENGINE 2 EPR MODE FAULT N1 DEGRADED MODE - THE FLIGHT CREW PERFORMED QRH RESET BUT IT WAS UNSUCCESSFUL - THE AIRCRAFT LANDED SAFELY AT MIA WITHOUSDR AALA202610106569Probe · fault messageAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO MIA DUE TO THE FLIGHT CREW REPORTING ENGINE 2 EPR MODE FAULT N1 DEGRADED MODE - THE FLIGHT CREW PERFORMED QRH RESET BUT IT WAS UNSUCCESSFUL - THE AIRCRAFT LANDED SAFELY AT MIA WITHOUSDR YENA2026082600710Probe · damagedFLT # 1380, FLL-GUA (AIRTURN BACK TO FLL). ENG 2 EPR MODE FAULT; FOUND #2 ENG P2/T2 PROBE WITH DEBRI FROM BIRD STRIKE. REPLACED P2T2 PROBE PER REF. AMM 73-22-11-400-010-A. ACCOMPLISHED PROBE HEAT TEST & IDLE PWR ENG RUN WITH NO FAULTS NOTED.FOUND EVIDENCE OF B
See all 456 reportsOther codes in chapter 77 · 13
7700Engine Indicating System7710Power Indicating System7712Engine BMEP/Torque Indicating7713Manifold Pressure (MP) Indicating7714Engine RPM Indicating System7720Engine Temperature Indicating System7721Cylinder Head Temperature (CHT) Indicating System7722Engine EGT/TIT Indicating System7730Engine Ignition Analyzer System7731Engine Ignition Analyzer7732Engine Vibration Analyzer7740Engine Integrated Instrument System7797Engine Indicating System Wiring