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A DC10-15 flight crew overshoots their assigned altitude when the autoplt fails to capture at expected leveloff atl 125 mi northeast of nootn, nv.
| Attributes | |
| ACN | 470520 |
| Time | |
| Date | 200004 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : nootn |
| State Reference | NV |
| Altitude | msl bound lower : 30700 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : cfi pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 240 flight time total : 5500 flight time type : 1200 |
| ASRS Report | 470520 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 2000 |
| ASRS Report | 471308 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned altitude |
| Miss Distance | horizontal : 18000 vertical : 1700 |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On descent to FL310, autoplt failed to capture. At FL307, captain recovered and initiated climb to FL310. Denver advised altitude alert. Center then advised traffic -- passed opposite direction traffic at FL310 with 2000 ft vertical separation and at 1 mi horizontal. Contributing factors: DC10-15 aircraft doesn't have an aural horn to advise of altdevs. I, as so, was receiving ATIS information and was not backing up captain and first officer altitude monitoring. Supplemental information from acn 471308: we were issued a TA with eastbound traffic at FL290 and approximately 3 mi.
Original NASA ASRS Text
Title: A DC10-15 FLC OVERSHOOTS THEIR ASSIGNED ALT WHEN THE AUTOPLT FAILS TO CAPTURE AT EXPECTED LEVELOFF ATL 125 MI NE OF NOOTN, NV.
Narrative: ON DSCNT TO FL310, AUTOPLT FAILED TO CAPTURE. AT FL307, CAPT RECOVERED AND INITIATED CLB TO FL310. DENVER ADVISED ALT ALERT. CTR THEN ADVISED TFC -- PASSED OPPOSITE DIRECTION TFC AT FL310 WITH 2000 FT VERT SEPARATION AND AT 1 MI HORIZ. CONTRIBUTING FACTORS: DC10-15 ACFT DOESN'T HAVE AN AURAL HORN TO ADVISE OF ALTDEVS. I, AS SO, WAS RECEIVING ATIS INFO AND WAS NOT BACKING UP CAPT AND FO ALT MONITORING. SUPPLEMENTAL INFO FROM ACN 471308: WE WERE ISSUED A TA WITH EBOUND TFC AT FL290 AND APPROX 3 MI.
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.