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B757-200 flight director commands turn in wrong direction when LNAV selected on holtz RNAV SID from lax.
| Attributes | |
| ACN | 709843 |
| Time | |
| Date | 200609 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | agl single value : 800 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Fog |
| Aircraft 1 | |
| Controlling Facilities | tower : lax.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Route In Use | departure sid : holtz.seven |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 709843 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 709841 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | aircraft : equipment problem dissipated |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft Chart Or Publication |
| Primary Problem | Ambiguous |
Narrative:
Flying holtz 7 departure from runway 25R at lax. Map display correct at runway/symbol on runway but to left side. When LNAV selected a right turn was commanded. First officer made right turn to follow flight director. Upon checking map; I did not see deviation or why right turn was commanded and had first officer turn back left. Flight director did come back left and appear to correct back to hiipr.
Original NASA ASRS Text
Title: B757-200 FLT DIRECTOR COMMANDS TURN IN WRONG DIRECTION WHEN LNAV SELECTED ON HOLTZ RNAV SID FROM LAX.
Narrative: FLYING HOLTZ 7 DEP FROM RWY 25R AT LAX. MAP DISPLAY CORRECT AT RWY/SYMBOL ON RWY BUT TO L SIDE. WHEN LNAV SELECTED A R TURN WAS COMMANDED. FO MADE R TURN TO FOLLOW FLT DIRECTOR. UPON CHKING MAP; I DID NOT SEE DEV OR WHY R TURN WAS COMMANDED AND HAD FO TURN BACK L. FLT DIRECTOR DID COME BACK L AND APPEAR TO CORRECT BACK TO HIIPR.
Data retrieved from NASA's ASRS site as of January 2009 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.