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C414 pilot penetrated dc ADIZ without clearance, after the aircraft lost pressurization and had lost contact with the pct approach controller because of high cabin noise level.
| Attributes | |
| ACN | 599003 |
| Time | |
| Date | 200310 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | special use airspace : dcadiz.othersua |
| State Reference | DC |
| Altitude | msl bound lower : 10500 msl bound upper : 16500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc tracon : pct.tracon |
| Operator | general aviation : personal |
| Make Model Name | Chancellor 414A & C414 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change cruise : level descent : vacating altitude |
| Route In Use | enroute : direct |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 50 flight time total : 5000 flight time type : 20 |
| ASRS Report | 599003 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | aircraft equipment problem : critical airspace violation : entry non adherence : published procedure non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued advisory flight crew : exited penetrated airspace other |
| Consequence | faa : reviewed incident with flight crew faa : investigated other |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was en route from chester county airport, PA (40N), VFR with flight following, including a request for dca class B clearance, at an altitude of 16500 ft. After departing, we contacted phl departure and was assigned a transponder code. During the climb out, we were handed off to harrisburg approach, then potomac approach. Upon reaching cruising altitude, we encountered a total pressurization loss, necessitating a rapid descent. We attempted to contact potomac approach, but the cockpit noise level was so great, we could barely understand the controller. I believe that he said flight following not available, but I am not sure of this. I attempted to turn eastbound to avoid the dca class B airspace, and leveled off at 10500 ft, and continued the flight unpressurized. There was still a considerable amount of noise in the cockpit, but it was manageable. We contacted ZDC in the vicinity of norfolk, and was advised to call ZDC upon arriving at destination. We were advised that we had penetrated the dca class B. We explained the circumstances to the controller and was told 'not to worry about it.' if we did in fact penetrate the class B, it was inadvertent and due to the circumstances. The remainder of the trip was uneventful.
Original NASA ASRS Text
Title: C414 PLT PENETRATED DC ADIZ WITHOUT CLRNC, AFTER THE ACFT LOST PRESSURIZATION AND HAD LOST CONTACT WITH THE PCT APCH CTLR BECAUSE OF HIGH CABIN NOISE LEVEL.
Narrative: I WAS ENRTE FROM CHESTER COUNTY ARPT, PA (40N), VFR WITH FLT FOLLOWING, INCLUDING A REQUEST FOR DCA CLASS B CLRNC, AT AN ALT OF 16500 FT. AFTER DEPARTING, WE CONTACTED PHL DEP AND WAS ASSIGNED A XPONDER CODE. DURING THE CLBOUT, WE WERE HANDED OFF TO HARRISBURG APCH, THEN POTOMAC APCH. UPON REACHING CRUISING ALT, WE ENCOUNTERED A TOTAL PRESSURIZATION LOSS, NECESSITATING A RAPID DSCNT. WE ATTEMPTED TO CONTACT POTOMAC APCH, BUT THE COCKPIT NOISE LEVEL WAS SO GREAT, WE COULD BARELY UNDERSTAND THE CTLR. I BELIEVE THAT HE SAID FLT FOLLOWING NOT AVAILABLE, BUT I AM NOT SURE OF THIS. I ATTEMPTED TO TURN EBOUND TO AVOID THE DCA CLASS B AIRSPACE, AND LEVELED OFF AT 10500 FT, AND CONTINUED THE FLT UNPRESSURIZED. THERE WAS STILL A CONSIDERABLE AMOUNT OF NOISE IN THE COCKPIT, BUT IT WAS MANAGEABLE. WE CONTACTED ZDC IN THE VICINITY OF NORFOLK, AND WAS ADVISED TO CALL ZDC UPON ARRIVING AT DEST. WE WERE ADVISED THAT WE HAD PENETRATED THE DCA CLASS B. WE EXPLAINED THE CIRCUMSTANCES TO THE CTLR AND WAS TOLD 'NOT TO WORRY ABOUT IT.' IF WE DID IN FACT PENETRATE THE CLASS B, IT WAS INADVERTENT AND DUE TO THE CIRCUMSTANCES. THE REMAINDER OF THE TRIP WAS UNEVENTFUL.
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.