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Pilot of a C172 inadvertently entered class B airspace when transiting through the airspace and was unable to obtain clearance prior to entry due to frequency congestion.
| Attributes | |
| ACN | 455840 |
| Time | |
| Date | 199911 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : phx.airport |
| State Reference | AZ |
| Altitude | msl bound lower : 3800 msl bound upper : 4500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : p50.tracon |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other vortac |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 15 flight time total : 1850 flight time type : 900 |
| ASRS Report | 455840 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | airspace violation : entry non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited penetrated airspace |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Inadvertently entered the phx class B airspace during descent on northbound heading. Pilot's attention was diverted from the altitude ceiling of the class B airspace (4000 ft) while trying to navigation and contact phoenix ATC to request transition through VFR corridor. Saturation of the approach control frequency was a contributor to the pilot's lack of attention to the class B ceiling. Aircraft penetrated class B at about 4500 ft at 13 mi south of pxr VOR. Pilot contacted phx approach control but by then had already descended to 3800 ft.
Original NASA ASRS Text
Title: PLT OF A C172 INADVERTENTLY ENTERED CLASS B AIRSPACE WHEN TRANSITING THROUGH THE AIRSPACE AND WAS UNABLE TO OBTAIN CLRNC PRIOR TO ENTRY DUE TO FREQ CONGESTION.
Narrative: INADVERTENTLY ENTERED THE PHX CLASS B AIRSPACE DURING DSCNT ON NBOUND HDG. PLT'S ATTN WAS DIVERTED FROM THE ALT CEILING OF THE CLASS B AIRSPACE (4000 FT) WHILE TRYING TO NAV AND CONTACT PHOENIX ATC TO REQUEST TRANSITION THROUGH VFR CORRIDOR. SATURATION OF THE APCH CTL FREQ WAS A CONTRIBUTOR TO THE PLT'S LACK OF ATTN TO THE CLASS B CEILING. ACFT PENETRATED CLASS B AT ABOUT 4500 FT AT 13 MI S OF PXR VOR. PLT CONTACTED PHX APCH CTL BUT BY THEN HAD ALREADY DSNDED TO 3800 FT.
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.