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BE99 pilot reports that the ppa NDB is overpowered by the oun NDB which is 180 NM away and on a frequency separated by two khz.
| Attributes | |
| ACN | 969522 |
| Time | |
| Date | 201109 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZAB.ARTCC |
| State Reference | NM |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Make Model Name | Airliner 99 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Initial Approach |
| Route In Use | Direct Vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 3200 Flight Crew Type 280 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Inflight Event / Encounter Other / Unknown |
Narrative:
Enroute to ppa; unable to receive reliable bearing information to the ppa NDB. While listening; the ppa identifier morse code can be heard; but much stronger can be heard an oun identifier. In the past; the oun signal would cause significant interference outside of 20 NM from pampa; but the ppa signal would be sufficient for a stable NDB approach signal. Lately; the oun signal is much louder and seems to interfere with the ppa bearing information even in the immediate vicinity of the station to an extent that would not allow direct-to navigation or a ppa NDB approach.
Original NASA ASRS Text
Title: BE99 pilot reports that the PPA NDB is overpowered by the OUN NDB which is 180 NM away and on a frequency separated by two KHz.
Narrative: Enroute to PPA; unable to receive reliable bearing information to the PPA NDB. While listening; the PPA identifier Morse code can be heard; but much stronger can be heard an OUN identifier. In the past; the OUN signal would cause significant interference outside of 20 NM from Pampa; but the PPA signal would be sufficient for a stable NDB approach signal. Lately; the OUN signal is much louder and seems to interfere with the PPA bearing information even in the immediate vicinity of the station to an extent that would not allow direct-to navigation or a PPA NDB approach.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.