What it covers
The rotating assembly which supports the tail rotor blades. Does not include the controlling aspects which are filed in JASC code 6720. Typical parts are trunnion, fairing, damper plate, shaft, hub, etc.
Service difficulty reports · 907
Reports filed under 6420, newest first.
| 1995 | 81 |
|---|---|
| 1996 | 57 |
| 1997 | 45 |
| 1998 | 81 |
| 1999 | 76 |
| 2000 | 86 |
| 2001 | 89 |
| 2002 | 94 |
| 2003 | 107 |
| 2004 | 46 |
| 2005 | 19 |
| 2006 | 12 |
| 2007 | 12 |
| 2008 | 10 |
| 2009 | 9 |
| 2010 | 7 |
| 2011 | 6 |
| 2012 | 14 |
| 2013 | 14 |
| 2014 | 8 |
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 3 |
SDR QR9R2026040600002Rotor Head · out of limitsTHE LAMINATED PILE ASSEMBLY WAS RECEIVED FROM SUPPLY WITH A GAP EXCESS OF .0078".SDR 8LFA202603100002Nut · looseDURING FLIGHT IT WAS NOTED AN ABNORMAL METALLIC NOISE EMANATING FROM THE TAIL BOOM AREA. IT WAS DECIDED TO PERFORM A PRECAUTIONARY LANDING DUE TO THE NOISE HEARD. UPON INSPECTION OF THE AIRCRAFT THE TAIL ROTOR MAST NUT WAS FOUND IN A LOOSE CONDITION. SAFETYSDR QR9R2026021800001Rotor Head · out of limitsRECEIVED LAMINATED PILE ASSEMBLY FROM SUPPLY WITH .013'' GAP IN LAMINATED PILE. MAX IS .008''.
See all 907 reports