What it covers
The air traffic control (ATC) system which receives coded signals from a ground station and transmits a coded reply for altitude reporting and identification purposes. Typical parts are transponder, antenna, control unit, transceiver, coaxial connecting cables, etc.
Service difficulty reports · 624
Reports filed under 3452, newest first.
| 1995 | 91 |
|---|---|
| 1996 | 81 |
| 1997 | 89 |
| 1998 | 67 |
| 1999 | 38 |
| 2000 | 11 |
| 2001 | 34 |
| 2002 | 30 |
| 2003 | 37 |
| 2004 | 8 |
| 2005 | 18 |
| 2006 | 13 |
| 2007 | 7 |
| 2008 | 5 |
| 2009 | 15 |
| 2010 | 10 |
| 2011 | 6 |
| 2012 | 7 |
| 2013 | 5 |
| 2014 | 7 |
| 2015 | 8 |
| 2016 | 8 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
SDR DALA2026053103305Transponder · failedATC REPORTED INTERMITTENT MODE C. ALTITUDE REPORTING FAILURES IN ROUTE. ATC TRANSPONDER/AUTOMATIC ALTITUDE REPORT SYS AND A/C VACATED RVSM AIRSPACE. USE FLT AWARE TO VERIFY DATA GAPS FOR THIS FLIGHT. C/A: R/R ATC TRANSPONDER 1 +2 IAW A319 AMM 34-52 BITE TEST PSDR AALA202508192006Control Panel · odorAIRCRAFT WAS GROUNDED: ACRID SMELL IN FLIGHT DECK. ACCOMPLISHED CARD 08L00021001. FOUND TCAS AND ATC PANEL PRODUCING ACRID ODOR. REMOVED AND REPLACED PANEL, PER AMM 34-53-03.SDR YENA2025080500801Transponder · no testFLT#2260, MAD-BOS. (ETOPS) ATC/XPDR 2 FAILED DURING PRE FLIGHT ( ATC SYSTEM - TRANSPONDER SINGLE POSITION ); OPERATIONAL TEST OF THE ATC WAS ACCOMPLISHED AS PER AMM 34-52-00-740-004-A.NO FAULTS NOTED ON BOTH CHANNELS MX-4 UPDATED. PLACARD REMOVED.
See all 624 reports