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An atx light transport crew had an intermittent flag on an ADI with an air carrier inspector looking over their shoulder.
| Attributes | |
| ACN | 257673 |
| Time | |
| Date | 199311 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : iad |
| State Reference | VA |
| Altitude | msl bound lower : 2000 msl bound upper : 2000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : iad |
| Operator | common carrier : air taxi |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time total : 5070 flight time type : 2600 |
| ASRS Report | 257673 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
On FAA proving run for far 135 certificate. On approach to iad, FAA inspector noticed copilot's attitude gyro flag on final (copilot flying). Brought it to my attention taxiing to ramp -- but flag disappeared. Figured it was an intermittent problem. After remain-over-night, next morning, the flag was gone, so took off for dallas (per maintenance inspector's advice). After stop in evansville, in, for fuel, saw one ADI flag in descent to dallas (unit worked perfectly). After landing replaced ADI with intermittent flag. FAA thinks we flew an unairworthy aircraft.
Original NASA ASRS Text
Title: AN ATX LTT CREW HAD AN INTERMITTENT FLAG ON AN ADI WITH AN ACR INSPECTOR LOOKING OVER THEIR SHOULDER.
Narrative: ON FAA PROVING RUN FOR FAR 135 CERTIFICATE. ON APCH TO IAD, FAA INSPECTOR NOTICED COPLT'S ATTITUDE GYRO FLAG ON FINAL (COPLT FLYING). BROUGHT IT TO MY ATTN TAXIING TO RAMP -- BUT FLAG DISAPPEARED. FIGURED IT WAS AN INTERMITTENT PROB. AFTER REMAIN-OVER-NIGHT, NEXT MORNING, THE FLAG WAS GONE, SO TOOK OFF FOR DALLAS (PER MAINT INSPECTOR'S ADVICE). AFTER STOP IN EVANSVILLE, IN, FOR FUEL, SAW ONE ADI FLAG IN DSCNT TO DALLAS (UNIT WORKED PERFECTLY). AFTER LNDG REPLACED ADI WITH INTERMITTENT FLAG. FAA THINKS WE FLEW AN UNAIRWORTHY ACFT.
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.