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Small aircraft pilot is told he has mode C inoperative on approach. Departs with mode C still inoperative.
| Attributes | |
| ACN | 336326 |
| Time | |
| Date | 199605 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : roa |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : roa |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 8500 flight time type : 50 |
| ASRS Report | 336326 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After I entered class C airspace at roa, roanoke, va, I was told that my altitude encoding was not working. I continued to landing and then departed shortly afterwards. On departure control I was told again that my transponder was not putting out altitude information.
Original NASA ASRS Text
Title: SMA PLT IS TOLD HE HAS MODE C INOP ON APCH. DEPARTS WITH MODE C STILL INOP.
Narrative: AFTER I ENTERED CLASS C AIRSPACE AT ROA, ROANOKE, VA, I WAS TOLD THAT MY ALT ENCODING WAS NOT WORKING. I CONTINUED TO LNDG AND THEN DEPARTED SHORTLY AFTERWARDS. ON DEP CTL I WAS TOLD AGAIN THAT MY XPONDER WAS NOT PUTTING OUT ALT INFO.
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.