<< >> NASA ASRS Report 325610, January 1996

Reporter was given instructions to hold north of rod VOR and interpreted the controller to hold north to rod VOR. The controller called the reporter's attention to his error and vectored the reporter to his destination.

Attributes
ACN	325610
Time
Date	199601
Day	Fri
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : rod
State Reference	OH
Altitude	msl bound lower : 25000 msl bound upper : 25000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 8560 flight time type : 1500
ASRS Report	325610
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ATC control indianapolis. Approaching rosewood feeder fix flight was given instructions to hold north rosewood VOR, 20 mi legs, FL250. I interpreted this to mean, hold north to rosewood VOR, so I turned south to establish my perceived correct analysis of what was expected of me. Controller noticed error and informed us of our acknowledgement of previous instructions and vectored us with no further problems. 1) I misinterpreted instructions, now realizing I mistakenly used NDB procedures. 2) my first officer correctly analyzed situation but was reluctant to correct me since she was new. 3) controller was extremely busy because WX was closing area airports. Frequency was saturated with communications. 4) corrective actions: informed my first officer to speak up -- a little doubt would have made me query ATC about holding. In retrospect I should have asked for a holding radial. Fatigue was a factor, causing my erroneous use of NDB procedures.

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Original NASA ASRS Text

Title: RPTR WAS GIVEN INSTRUCTIONS TO HOLD N OF ROD VOR AND INTERPRETED THE CTLR TO HOLD N TO ROD VOR. THE CTLR CALLED THE RPTR'S ATTN TO HIS ERROR AND VECTORED THE RPTR TO HIS DEST.

Narrative: ATC CTL INDIANAPOLIS. APCHING ROSEWOOD FEEDER FIX FLT WAS GIVEN INSTRUCTIONS TO HOLD N ROSEWOOD VOR, 20 MI LEGS, FL250. I INTERPRETED THIS TO MEAN, HOLD N TO ROSEWOOD VOR, SO I TURNED S TO ESTABLISH MY PERCEIVED CORRECT ANALYSIS OF WHAT WAS EXPECTED OF ME. CTLR NOTICED ERROR AND INFORMED US OF OUR ACKNOWLEDGEMENT OF PREVIOUS INSTRUCTIONS AND VECTORED US WITH NO FURTHER PROBS. 1) I MISINTERPRETED INSTRUCTIONS, NOW REALIZING I MISTAKENLY USED NDB PROCS. 2) MY FO CORRECTLY ANALYZED SIT BUT WAS RELUCTANT TO CORRECT ME SINCE SHE WAS NEW. 3) CTLR WAS EXTREMELY BUSY BECAUSE WX WAS CLOSING AREA ARPTS. FREQ WAS SATURATED WITH COMS. 4) CORRECTIVE ACTIONS: INFORMED MY FO TO SPEAK UP -- A LITTLE DOUBT WOULD HAVE MADE ME QUERY ATC ABOUT HOLDING. IN RETROSPECT I SHOULD HAVE ASKED FOR A HOLDING RADIAL. FATIGUE WAS A FACTOR, CAUSING MY ERRONEOUS USE OF NDB PROCS.

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.