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B737-300 autoplt fails to capture FL190. It overshot altitude to FL185. Captain had to hand fly it up to FL190.
| Attributes | |
| ACN | 391160 |
| Time | |
| Date | 199801 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ogd airport : slc |
| State Reference | UT |
| Altitude | msl bound lower : 18500 msl bound upper : 19000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 6500 flight time type : 3500 |
| ASRS Report | 391160 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 20000 |
| ASRS Report | 391028 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Cleared to FL190. Noticed autoplt did not capture altitude. Turned off autoplt and manually climbed back to FL190. Aircraft bottomed out at about FL185.
Original NASA ASRS Text
Title: B737-300 AUTOPLT FAILS TO CAPTURE FL190. IT OVERSHOT ALT TO FL185. CAPT HAD TO HAND FLY IT UP TO FL190.
Narrative: CLRED TO FL190. NOTICED AUTOPLT DID NOT CAPTURE ALT. TURNED OFF AUTOPLT AND MANUALLY CLBED BACK TO FL190. ACFT BOTTOMED OUT AT ABOUT FL185.
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.