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An MD80 flight crew experiences a delayed turn to the northeast on the whitestone climb due to an autoplt disconnect when departing lga, ny.
| Attributes | |
| ACN | 456770 |
| Time | |
| Date | 199912 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : lga.vor |
| State Reference | NY |
| Altitude | msl single value : 2800 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Rain |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon tower : psm.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : whitestone |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 13000 flight time type : 1000 |
| ASRS Report | 456770 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment other aircraft equipment : autopilot light other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : overcame equipment problem flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Due to heading being 20 degrees off on HSI on first officer's side (failure) autoplt disconnected on whitestone climb out of lga at 2.5 DME at exact time required to turn left to 040 degrees. Aircraft heading select was armed, no response. Noticed autoplt off light was on. Autothrottles still on. Re-engaged autoplt, re-engaged heading select. Airplane began to turn at 4.3 DME. ATC did not yell, but questioned our heading. Took me 20 seconds to figure out failure and re-engage. Should have clicked off both autoplt and autothrottles and manually flown the immediate left turn. You do not have time to re-engage autoplt/autothrottles with a tight turn in SID.
Original NASA ASRS Text
Title: AN MD80 FLC EXPERIENCES A DELAYED TURN TO THE NE ON THE WHITESTONE CLB DUE TO AN AUTOPLT DISCONNECT WHEN DEPARTING LGA, NY.
Narrative: DUE TO HDG BEING 20 DEGS OFF ON HSI ON FO'S SIDE (FAILURE) AUTOPLT DISCONNECTED ON WHITESTONE CLB OUT OF LGA AT 2.5 DME AT EXACT TIME REQUIRED TO TURN L TO 040 DEGS. ACFT HDG SELECT WAS ARMED, NO RESPONSE. NOTICED AUTOPLT OFF LIGHT WAS ON. AUTOTHROTTLES STILL ON. RE-ENGAGED AUTOPLT, RE-ENGAGED HDG SELECT. AIRPLANE BEGAN TO TURN AT 4.3 DME. ATC DID NOT YELL, BUT QUESTIONED OUR HDG. TOOK ME 20 SECONDS TO FIGURE OUT FAILURE AND RE-ENGAGE. SHOULD HAVE CLICKED OFF BOTH AUTOPLT AND AUTOTHROTTLES AND MANUALLY FLOWN THE IMMEDIATE L TURN. YOU DO NOT HAVE TIME TO RE-ENGAGE AUTOPLT/AUTOTHROTTLES WITH A TIGHT TURN IN SID.
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.