37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 334159 |
Time | |
Date | 199604 |
Day | Thu |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : stl |
State Reference | MO |
Altitude | msl bound lower : 7500 msl bound upper : 8700 |
Environment | |
Flight Conditions | IMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tracon : stl |
Operator | other |
Make Model Name | Military |
Operating Under FAR Part | other : other |
Flight Phase | climbout : intermediate altitude |
Flight Plan | VFR |
Aircraft 2 | |
Operator | common carrier : air carrier |
Make Model Name | B737 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Flight Plan | IFR |
Person 1 | |
Affiliation | government : military |
Function | flight crew : single pilot |
Qualification | other other : other pilot : commercial pilot : instrument pilot : military |
Experience | flight time last 90 days : 37 flight time total : 7600 flight time type : 4300 |
ASRS Report | 334159 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Events | |
Anomaly | conflict : airborne less severe inflight encounter : vfr in imc inflight encounter other non adherence : required legal separation non adherence : far other anomaly other |
Independent Detector | other controllera other flight crewa |
Resolutory Action | other |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
After being cleared for an unrestr climb VFR above 8500 ft ie, clear of class B, a cloud deck was encountered at 8700 ft. This cloud deck was not forecasted and came in rapidly. WX was forecast to be 60 scattered 150 broken 200 overcast 10 mi. In order to remain clear of clouds the climb was stop and a descent was started. However, these clouds went down to 7500 ft. Radio frequency had been switched to ZKC. I was attempting to remain VFR, but wound up in class B airspace on center frequency. I was later told an airline was given a heading change because of my situation. No near miss or dangerous action was observed. Lesson learned, I should have been on departure control frequency versus center in view of rapidly changing WX.
Original NASA ASRS Text
Title: PLT OF AN MIL ERRONEOUSLY PENETRATED CLASS B AIRSPACE DURING DSCNT OUT OF IMC TO VFR.
Narrative: AFTER BEING CLRED FOR AN UNRESTR CLB VFR ABOVE 8500 FT IE, CLR OF CLASS B, A CLOUD DECK WAS ENCOUNTERED AT 8700 FT. THIS CLOUD DECK WAS NOT FORECASTED AND CAME IN RAPIDLY. WX WAS FORECAST TO BE 60 SCATTERED 150 BROKEN 200 OVCST 10 MI. IN ORDER TO REMAIN CLR OF CLOUDS THE CLB WAS STOP AND A DSCNT WAS STARTED. HOWEVER, THESE CLOUDS WENT DOWN TO 7500 FT. RADIO FREQ HAD BEEN SWITCHED TO ZKC. I WAS ATTEMPTING TO REMAIN VFR, BUT WOUND UP IN CLASS B AIRSPACE ON CTR FREQ. I WAS LATER TOLD AN AIRLINE WAS GIVEN A HEADING CHANGE BECAUSE OF MY SIT. NO NEAR MISS OR DANGEROUS ACTION WAS OBSERVED. LESSON LEARNED, I SHOULD HAVE BEEN ON DEP CTL FREQ VERSUS CTR IN VIEW OF RAPIDLY CHANGING WX.
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.