What it covers
The unit operating by gyroscopic principle and driven by airflow or an electric motor, which provides heading (direction) references relative to a preset heading in degrees of the compass. Also for the flux unit detector which senses the earth's magnetic field and uses this data to correct for gyro drift. Typical parts are gyro, rotor, bearing, etc.
Service difficulty reports · 649
Reports filed under 3422, newest first.
| 1995 | 22 |
|---|---|
| 1996 | 40 |
| 1997 | 70 |
| 1998 | 58 |
| 1999 | 42 |
| 2000 | 36 |
| 2001 | 53 |
| 2002 | 44 |
| 2003 | 50 |
| 2004 | 30 |
| 2005 | 38 |
| 2006 | 19 |
| 2007 | 12 |
| 2008 | 14 |
| 2009 | 19 |
| 2010 | 16 |
| 2011 | 10 |
| 2012 | 10 |
| 2013 | 8 |
| 2014 | 4 |
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 3 |
SDR ABXA20260630296Display · faultedON TAXI, EADI ON CAPT'S SIDE BLANKED OUT. AIRCRAFT RETURNED TO THE GATE (BTB). PERFORMED FIM 34--22 FAULT TREE 804 SYSTEM OPERATION NORMAL. ACFT DOWNGRADED CAT I PENDING 30/40 TEST. A/C RETURNED TO SERVICE.SDR CALA2026050516011Adiru · faultedLEFT IRS FAULT LIGHT ON NON NORMAL COMP DEBRIEFED WITH CREW, CHECKED FOR FAULTS IN DFCS, REPLACE L ADIRU. REF FIM 34-21 TASK 839 REPLACED L ADIRU, OPS CHECK GOOD REF AMM 34-21-00.SDR CALA2026050415936Accelerometer · failedON CLIMB OUT IAS DISAREE...REPEAT WRITE UP. DEBRIEF WITH CREW,CREW STATED THAT THE IAS DIFFERENCE WAS 5 TO 10 KN FOR APPROXIMATELY 30 SECONDS. DURING PITOT PRESSURIZATION, FIRST OFFICER SIDE LAGS BEHIND CAPTAIN SIDE BUT STABILIZES AND HOLDS AT TARGET VALUE R
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