 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
The loss of his directional gyro mandates the pilot of an IFR IMC PA23 aztec to request to 'no gyro approach' to bdl, ct.
| Attributes | |
| ACN | 562762 |
| Time | |
| Date | 200210 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : bdl.airport |
| State Reference | CT |
| Altitude | msl single value : 1200 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Rain Fog |
| Aircraft 1 | |
| Controlling Facilities | tracon : bdl.tracon tower : bdl.tower tracon : s46.tracon |
| Operator | general aviation : personal |
| Make Model Name | PA-23-250 Aztec |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision approach other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 10200 flight time type : 510 |
| ASRS Report | 562762 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude maintenance problem : improper maintenance non adherence : far other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : hsi other flight crewa |
| Resolutory Action | controller : issued new clearance controller : provided flight assist flight crew : landed as precaution flight crew : regained aircraft control flight crew : returned to intended or assigned course other |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I received my clearance from 4b9 to grotin from bradley approach on the ground at 4b9. When airborne, I contacted bdl approach and they gave me a direct to hfd. When I made this turn from a 330 degree heading to approximately 150 degrees heading, I noticed the directional gyro portion of the HSI failed to indicate the turn properly. I attempted to fast slave the dg without reliable success. This made the autoplt unreliable and I elected to hand fly the airplane, climbing to three thousand. I requested a 'no gyro' approach to bradley. During the consequent vectors, while hand flying and setting up the approach to runway 6 ILS, I inadvertently experienced an altitude deviation to about 200-250 ft below my assigned 3000 ft. The subsequent 'no gyro' approach was uneventful. Later in the day I checked the aircraft logs and discovered that my aztec aircraft was out of pitot static and transponder checks by 7 months for IFR flight. Check was due 03/02. At no time did bradley tower request a call from me upon landing. I can assume they appreciated the practice 'no gyro' approach.
Original NASA ASRS Text
Title: THE LOSS OF HIS DIRECTIONAL GYRO MANDATES THE PLT OF AN IFR IMC PA23 AZTEC TO REQUEST TO 'NO GYRO APCH' TO BDL, CT.
Narrative: I RECEIVED MY CLRNC FROM 4B9 TO GROTIN FROM BRADLEY APCH ON THE GND AT 4B9. WHEN AIRBORNE, I CONTACTED BDL APCH AND THEY GAVE ME A DIRECT TO HFD. WHEN I MADE THIS TURN FROM A 330 DEG HDG TO APPROX 150 DEGS HDG, I NOTICED THE DIRECTIONAL GYRO PORTION OF THE HSI FAILED TO INDICATE THE TURN PROPERLY. I ATTEMPTED TO FAST SLAVE THE DG WITHOUT RELIABLE SUCCESS. THIS MADE THE AUTOPLT UNRELIABLE AND I ELECTED TO HAND FLY THE AIRPLANE, CLIMBING TO THREE THOUSAND. I REQUESTED A 'NO GYRO' APCH TO BRADLEY. DURING THE CONSEQUENT VECTORS, WHILE HAND FLYING AND SETTING UP THE APCH TO RWY 6 ILS, I INADVERTENTLY EXPERIENCED AN ALT DEV TO ABOUT 200-250 FT BELOW MY ASSIGNED 3000 FT. THE SUBSEQUENT 'NO GYRO' APCH WAS UNEVENTFUL. LATER IN THE DAY I CHKED THE ACFT LOGS AND DISCOVERED THAT MY AZTEC ACFT WAS OUT OF PITOT STATIC AND XPONDER CHKS BY 7 MONTHS FOR IFR FLT. CHK WAS DUE 03/02. AT NO TIME DID BRADLEY TWR REQUEST A CALL FROM ME UPON LNDG. I CAN ASSUME THEY APPRECIATED THE PRACTICE 'NO GYRO' APCH.
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.