What it covers
The hardware systems which combines navigational data to compute or manage the aircraft's geographical position or theoretical flight path. Typical parts are course computers, flight management computers, performance data computers, and associated control display units, warning annunciators, etc.
Service difficulty reports · 4,690
Reports filed under 3460, newest first.
| 1995 | 6 |
|---|---|
| 1996 | 22 |
| 1997 | 19 |
| 1998 | 16 |
| 1999 | 23 |
| 2000 | 24 |
| 2001 | 51 |
| 2002 | 63 |
| 2003 | 27 |
| 2004 | 27 |
| 2005 | 25 |
| 2006 | 48 |
| 2007 | 59 |
| 2008 | 64 |
| 2009 | 78 |
| 2010 | 105 |
| 2011 | 196 |
| 2012 | 241 |
| 2013 | 340 |
| 2014 | 376 |
| 2015 | 498 |
| 2016 | 317 |
| 2017 | 244 |
| 2018 | 252 |
| 2019 | 332 |
| 2020 | 162 |
| 2021 | 311 |
| 2022 | 321 |
| 2023 | 326 |
| 2024 | 50 |
| 2025 | 37 |
| 2026 | 30 |
SDR SCNA20260928409Fmc · faultedVNAV GROSSLY MISCALCULATED THE DESCENT PATH ON THE ARRIVAL & CALCULATED A PATH SO STEEP THE A/C HAD TO DESCEND 5000 FPM TO MAINTAIN THE CALCULATED PATH THIS WAS ALSO WHEN THE A/C SHOULD HAVE BEEN ATTEMPTING TO SLOW FROM 280 TO 250 KNOTS. PERFORMED FMCS BITE PSDR K11A2026090400389Fmc · faultedBOTH FMC'S FAILED IN FLIGHT AND BECAME OPERATIONAL APPROXIMATELY AFTER ONE MINUTE. REMOVED AND REINSTALLED FMC COMPUTERS IAW MM 34-62-21, OPS CHECK GOOD. NO DEFECTS NOTEDSDR DXTA2026082409377Computer · faultedON APPROACH, RECEIVED AUTOPILOT FAIL, SWPS FAIL, YD FAIL, AND VENTRAL RUDDER FAIL SIMULTANEOUSLY. ALSO YELLOW IAS FLAG DISPLAYED ON PFD 1 & 2. PFD 2 IAS CONSISTENTLY 10-15 KNOTS BELOW PFD 1 AND STANDBY UNTIL LANDING. FOR MAINTENANCE CONVIVENCE REMOVED GIA 1
See all 4,690 reports