What it covers
The low frequency navigation system which provides for system geographical location of the aircraft on a worldwide basis when operating on signals from ground-based OMEGA and VHF transmitting stations. Typical parts are antenna, control unit or receiver, coaxial connecting cable, remote switches, connectors, etc.
Service difficulty reports · 9
Reports filed under 3456, newest first.
| 1995 | 1 |
|---|---|
| 1996 | 1 |
| 2002 | 1 |
| 2006 | 2 |
| 2009 | 1 |
| 2013 | 1 |
| 2019 | 1 |
| 2022 | 1 |
SDR SWIA202266164None · damagedTHE ADF ANTENNA HAS ONE NUTPLATE SPINNING WITH THE SCREW STILL INSTALLED AND REQUIRES REPLACEMENT.THE LH MIDDLE NUTPLATE. (C-CHECK RO 7/26/2022) REMOVED AND REPLACED 1EA NUTPLATE ON HAT CHANNEL AND RE-INSTALLED HAT CHANEEL IAW CRJ 200 SRM 51-42-06. MAJOSDR SIMA201906176001Fms · malfunctionedUNRELIABLE NAV INFORMATION IN FLIGHT BETWEEN FO X CA MFD FMS AND GPS-C/A-RESET AND PERFORMED OPC CHECK OF FMS/GPS IAW AMM 34-62-00. OPC CHECK GOOD. NO FAULTS NOTED AT THIS TIME. FOUND TO BE TRANSITORY CONDITION. A/C OK FOR SERVICE.SDR RU3A20130716009Transponder · faultyDURING PRE-START CHECKS WITH ACFT BATTERIES ON AND APU RUNNING AND ALL SYSTEMS (AFIS, AVIONICS) OPERATING, DISTINCT ACRID FUMES AND FAINT GREY SMOKE OBSERVED IN CABIN. ALL SYSTEMS OPERATED NORMALLY AND NO CIRCUIT BREAKERS TRIPPED. ACFT POWERED DOWN AND MX CONSDR DL764090118Transponder · failedMODE C REPORTED INOP BY BOTH GROUND AND TOWER. TCAS CHECKS GOOD. PERFORMED TEST OF BOTH ATC TRANSPONDERS. NO DEFECTS. ALL CHECKS NORMAL. OK FOR SERVICE, TESTED WITH ATC.SDR DL76G060711Panel · malfunctionedATC FAULT EICAS MSI ATC FAIL LIGHT ON TRANSPONDER ALSO FAULT ON TCAS REPLACED BOTTOM ATC ANTENNA CHECKS GOOD IAW MM MCO AND PLACA REMOVED ETOPS CATEGORY (B): DIVERSION OR TURNBACK.SDR DL76G060647Antenna · inoperativeDURING TAXI OUT, BOTH ATC SHOWED ATC FAIL LIGHT AND EICAS ATC FAULT MSG ALSO LOWER ANTENNA FAULT ON RADAR DISPLAY. REPLACED COCKPIT CONTROL PANEL AND LOWER ANTENNA PER MM BOTH TRANSPONDERS NOW TEST NORMALLY.SDR MWEA020062Control Panel · defectiveFIRST OFFICERS VHF NAV FREQUENCY SELECT KNOB (BLACK) DOES NOT CHANGE FREQUENCIES AND IS LOOSE (PULLS OUT FROM PANEL). REMOVED AND REPLACED FIRST OFFICERS NAV CONTROL PANEL IAW 34-32-03.SDR IXKA960028Omega Rpu · inoperativeFLIGHT NR 2, EWR-BDA - AIR TURN BACK DUE TO OMEGA READING ERROR WITH FLIGHT PLAN. REMOVED AND REPLACED OMEGA RPU, OPS CHECK OK AS PER MM 34-68-01. (M)SDR IXKA9500015Omega Antenna · missingEWR - A/C INBOARD LOG ITEM OMEGA UNABLE TO RECEIVE ANY STATION. ON INSPECTION, FOUND OMEGA ANTENNA MISSING, MOUNTING RECEPTACLE AND CONNECTOR RIPPED OUT OF HORIZONTAL STABILIZER TAIL CONE. REPAIRED MOUNTING RECEPTACLES FOR OMEGA ANTENNA PER SRM 51-40-9 AND R