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An arriving air carrier first officer claims that the psp ATIS cannot be clearly understood until within 70 mi of the airport due to frequency interference from another facility. The reporter states that this increases cockpit workload close in to the airport.
| Attributes | |
| ACN | 398467 |
| Time | |
| Date | 199803 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : psp |
| State Reference | CA |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 7500 flight time type : 1000 |
| ASRS Report | 398467 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | other physical facility |
| Airport | other physical facility |
Narrative:
Psp ATIS impossible to understand until within 70 NM of airport, generally below FL240. Interference from some other facility is bad. Mostly manifested as a squeal sound. All WX conditions. Being forced to wait until less than 70 NM from airport adds to an already high workload associated with late dscnts over high terrain. This has been the case over the past month as I've done weekly trips into psp.
Original NASA ASRS Text
Title: AN ARRIVING ACR FO CLAIMS THAT THE PSP ATIS CANNOT BE CLRLY UNDERSTOOD UNTIL WITHIN 70 MI OF THE ARPT DUE TO FREQ INTERFERENCE FROM ANOTHER FACILITY. THE RPTR STATES THAT THIS INCREASES COCKPIT WORKLOAD CLOSE IN TO THE ARPT.
Narrative: PSP ATIS IMPOSSIBLE TO UNDERSTAND UNTIL WITHIN 70 NM OF ARPT, GENERALLY BELOW FL240. INTERFERENCE FROM SOME OTHER FACILITY IS BAD. MOSTLY MANIFESTED AS A SQUEAL SOUND. ALL WX CONDITIONS. BEING FORCED TO WAIT UNTIL LESS THAN 70 NM FROM ARPT ADDS TO AN ALREADY HIGH WORKLOAD ASSOCIATED WITH lATE DSCNTS OVER HIGH TERRAIN. THIS HAS BEEN THE CASE OVER THE PAST MONTH AS I'VE DONE WKLY TRIPS INTO PSP.
Data retrieved from NASA's ASRS site as of July 2007 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.