37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 328793 |
Time | |
Date | 199602 |
Day | Sat |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : hnl |
State Reference | HI |
Altitude | msl bound lower : 800 msl bound upper : 1000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tracon : hnl |
Operator | common carrier : air carrier |
Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
Flight Phase | climbout : initial |
Route In Use | enroute : on vectors |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : atp |
Experience | flight time last 90 days : 180 flight time total : 13000 flight time type : 180 |
ASRS Report | 328793 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : flight engineer pilot : atp |
Experience | flight time last 90 days : 140 flight time total : 19700 flight time type : 1200 |
ASRS Report | 328790 |
Events | |
Anomaly | non adherence : clearance other spatial deviation |
Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
Resolutory Action | flight crew : returned to intended course or assigned course flight crew : overcame equipment problem other |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
Our ATC clearance was the standard right turn to a 155 degree heading after takeoff. After takeoff we turned to what we thought was the assigned heading, of which both our directional gyroscope compass system concurred. We had no more questioned each other as to why we were flying so close to the shoreline, when ATC asked us if we were turning to the assigned heading. We crosschecked the compasses which said we were flying the assigned 155 degree heading. In quickly xchking with the wet compass we found that we were actually flying about a 110 degree heading. We promptly turned to the newly assigned 270 degree heading using the wet compass and reset both directional gyroscope compass system. Although both compass system were in error, they were within the limits of the company parameters when compared to each other. This kept us from initially catching the error. We should have been more situationally aware of the aircraft heading during that part of the checklist and compared it with a known heading. Supplemental information from acn 328790: our release papers arrived about 20-25 mins later than usual, so we were a little hurried at this point. Arrived at the aircraft within company parameters, but about 15 mins later than I like to get there. I performed my preflight duties consciously not attempting to hurry them. All checks and checklists were completed so as to push for engine start and taxi 9 mins early. Taxi out was normal and takeoff normal. In retrospect, what I think happened was that I was trying not to hurry, but in fact was hurrying to some extent.
Original NASA ASRS Text
Title: A DC10-30 FLC DISCOVERED THAT THEIR ASSIGNED HDG WAS TAKING THEM OVER AN AREA THAT THEY HAD BEEN INSTRUCTED TO AVOID DURING DEP FROM HNL. AFTER SEVERAL QUERIES TO ATC REGARDING ASSIGNED HDG, THEY FOUND THAT THE ERROR HAD OCCURRED ON THEIR ACFT. FLC MANUALLY RESET DIRECTIONAL GYROSCOPE COMPASS SYS. TRACK DEV.
Narrative: OUR ATC CLRNC WAS THE STANDARD R TURN TO A 155 DEG HDG AFTER TKOF. AFTER TKOF WE TURNED TO WHAT WE THOUGHT WAS THE ASSIGNED HDG, OF WHICH BOTH OUR DIRECTIONAL GYROSCOPE COMPASS SYS CONCURRED. WE HAD NO MORE QUESTIONED EACH OTHER AS TO WHY WE WERE FLYING SO CLOSE TO THE SHORELINE, WHEN ATC ASKED US IF WE WERE TURNING TO THE ASSIGNED HDG. WE XCHKED THE COMPASSES WHICH SAID WE WERE FLYING THE ASSIGNED 155 DEG HDG. IN QUICKLY XCHKING WITH THE WET COMPASS WE FOUND THAT WE WERE ACTUALLY FLYING ABOUT A 110 DEG HDG. WE PROMPTLY TURNED TO THE NEWLY ASSIGNED 270 DEG HDG USING THE WET COMPASS AND RESET BOTH DIRECTIONAL GYROSCOPE COMPASS SYS. ALTHOUGH BOTH COMPASS SYS WERE IN ERROR, THEY WERE WITHIN THE LIMITS OF THE COMPANY PARAMETERS WHEN COMPARED TO EACH OTHER. THIS KEPT US FROM INITIALLY CATCHING THE ERROR. WE SHOULD HAVE BEEN MORE SITUATIONALLY AWARE OF THE ACFT HDG DURING THAT PART OF THE CHKLIST AND COMPARED IT WITH A KNOWN HDG. SUPPLEMENTAL INFO FROM ACN 328790: OUR RELEASE PAPERS ARRIVED ABOUT 20-25 MINS LATER THAN USUAL, SO WE WERE A LITTLE HURRIED AT THIS POINT. ARRIVED AT THE ACFT WITHIN COMPANY PARAMETERS, BUT ABOUT 15 MINS LATER THAN I LIKE TO GET THERE. I PERFORMED MY PREFLT DUTIES CONSCIOUSLY NOT ATTEMPTING TO HURRY THEM. ALL CHKS AND CHKLISTS WERE COMPLETED SO AS TO PUSH FOR ENG START AND TAXI 9 MINS EARLY. TAXI OUT WAS NORMAL AND TKOF NORMAL. IN RETROSPECT, WHAT I THINK HAPPENED WAS THAT I WAS TRYING NOT TO HURRY, BUT IN FACT WAS HURRYING TO SOME EXTENT.
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.