ADIFR was high at initial startup. A non-tech removed the tape on the nose, THEN wiped moisture away and around the holes on the Radome. This is not our standard procedure nor do we approve of others performing this task. I believe water was pushed right into the top ADIFR line. The plane has not flown since the Nose plumbing was last serviced. There is no reason for any malfunction especially had the procedure been followed.
2D-C End Diode Voltages were within limits up until we started to descend when returning to base.
*No DP_DPL on AEROS today. This variable is dependent upon the cavity pressure reading it gets from CAVP_DPL. Being the CAVP_DPL is not functioning, there will be no data from DP_DPL. There were data from all other DPL variables, however, as well as a Dew Point reading on the DPL display at the ADS station.
Testing and troubleshooting will be performed to diagnose the problem with CAVP_DPL on our next maintenance day. Right now, though, we are suspecting the pressure transducer. A visual check will be done during pre-flight to ensure there are no obvious problems that can be easily fixed prior to takeoff tomorrow.
Post Flight Maintenance
All Nose pressure lines were opened and blown out.
1 Comment
David Allbee
Flight Tech - D. Allbee
21Sep2019
Taxi - 1208
Takeoff - 1212
Landed - 1816
Pre-Flight
Ran "Auto A/D Cal" Ch. 5 on S/N 018 Failed (DSM 305) INTCP = 2012 SEP 01 -0.1589 2019 SEP 21 -0.3684
No data from DPL on AEROS
ADIFR was high at initial startup. A non-tech removed the tape on the nose, THEN wiped moisture away and around the holes on the Radome. This is not our standard procedure nor do we approve of others performing this task. I believe water was pushed right into the top ADIFR line. The plane has not flown since the Nose plumbing was last serviced. There is no reason for any malfunction especially had the procedure been followed.
1222 - LSRINT_VXL = 1370
1230 - QCR froze up
1303 - 2D_C (25um) End Diode Voltages: 1 = 2.18 32 = 4.15 64 = 4.60
- 2D_C (10um) End Diode Voltages: 1 = 1.95 32 = 2.17 64 = 1.19
1304 - LSRINT_VXL = 490
1636 to 1647 - DPR acting wonky
1807 - QCR unfrozen and tracking
No DSM issues.
2D-C End Diode Voltages were within limits up until we started to descend when returning to base.
*No DP_DPL on AEROS today. This variable is dependent upon the cavity pressure reading it gets from CAVP_DPL. Being the CAVP_DPL is not functioning, there will be no data from DP_DPL. There were data from all other DPL variables, however, as well as a Dew Point reading on the DPL display at the ADS station.
Testing and troubleshooting will be performed to diagnose the problem with CAVP_DPL on our next maintenance day. Right now, though, we are suspecting the pressure transducer. A visual check will be done during pre-flight to ensure there are no obvious problems that can be easily fixed prior to takeoff tomorrow.
Post Flight Maintenance
All Nose pressure lines were opened and blown out.