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Pilot of small aircraft unable to obtain reliable ADF on perrine NDB took up wrong heading. Center observed and gave proper vector to mia.
| Attributes | |
| ACN | 173605 |
| Time | |
| Date | 199103 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : mia |
| State Reference | FL |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 700 |
| ASRS Report | 173605 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other other : unspecified cockpit |
| Resolutory Action | flight crew : became reoriented |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On IFR flight plan, navigating northeast on V157, approximately 50 DME northeast eyw, 60 southwest mia, controller cleared us, 'direct perrine NDB, direct tmb, maintain 5000.' turned aircraft slightly right and tuned in ADF to NDB frequency, 266. Single pilot IFR, no autoplt, night over everglades and ocean. ADF locked onto beacon, but not perrine. Turned aircraft further right (east) toward ADF heading. Needle was pointing to 125 degrees, obviously not perrine. Center called and asked my heading. I said 100 degrees. Controller said, 'you'll never find tmb that way.' I responded, 'I know, the ADF is al over the place.how about a radar vector?' controller responded, 'ok, turn left 040 degrees.' end of incident. However, due to poor equipment in older aircraft, I should have immediately asked for a radar vector instead of trying to do it on my own. ADF needle finally pointed in correct direction 15 mi from station. Weak NDB signal, old equipment and distance combined with low altitude helped lead to problem.
Original NASA ASRS Text
Title: PLT OF SMA UNABLE TO OBTAIN RELIABLE ADF ON PERRINE NDB TOOK UP WRONG HEADING. CENTER OBSERVED AND GAVE PROPER VECTOR TO MIA.
Narrative: ON IFR FLT PLAN, NAVIGATING NE ON V157, APPROX 50 DME NE EYW, 60 SW MIA, CTLR CLRED US, 'DIRECT PERRINE NDB, DIRECT TMB, MAINTAIN 5000.' TURNED ACFT SLIGHTLY RIGHT AND TUNED IN ADF TO NDB FREQ, 266. SINGLE PLT IFR, NO AUTOPLT, NIGHT OVER EVERGLADES AND OCEAN. ADF LOCKED ONTO BEACON, BUT NOT PERRINE. TURNED ACFT FURTHER RIGHT (E) TOWARD ADF HDG. NEEDLE WAS POINTING TO 125 DEGS, OBVIOUSLY NOT PERRINE. CENTER CALLED AND ASKED MY HDG. I SAID 100 DEGS. CTLR SAID, 'YOU'LL NEVER FIND TMB THAT WAY.' I RESPONDED, 'I KNOW, THE ADF IS AL OVER THE PLACE.HOW ABOUT A RADAR VECTOR?' CTLR RESPONDED, 'OK, TURN LEFT 040 DEGS.' END OF INCIDENT. HOWEVER, DUE TO POOR EQUIP IN OLDER ACFT, I SHOULD HAVE IMMEDIATELY ASKED FOR A RADAR VECTOR INSTEAD OF TRYING TO DO IT ON MY OWN. ADF NEEDLE FINALLY POINTED IN CORRECT DIRECTION 15 MI FROM STATION. WEAK NDB SIGNAL, OLD EQUIP AND DISTANCE COMBINED WITH LOW ALT HELPED LEAD TO PROB.
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.