 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Altitude deviation when an FK100 flight crew suffers a temporary loss of aft control when the #1 main hydraulic system fails, affecting the autoplt altitude hold capability 80 mi east of dtw, mi.
| Attributes | |
| ACN | 537985 |
| Time | |
| Date | 200202 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dtw.airport |
| State Reference | MI |
| Altitude | msl single value : 35000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 537985 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : regained aircraft control flight crew : declared emergency |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
ATC facility: ZOB. Location: 80 NM east of detroit. Following hydraulic system #1 failure, autoplt was unable to maintain altitude. In the transition to manual control, we experienced a 400 ft altitude deviation. ZOB did not mention a traffic conflict or the altitude deviation. We declared an emergency after the altitude deviation.
Original NASA ASRS Text
Title: ALTDEV WHEN AN FK100 FLC SUFFERS A TEMPORARY LOSS OF AFT CTL WHEN THE #1 MAIN HYD SYS FAILS, AFFECTING THE AUTOPLT ALT HOLD CAPABILITY 80 MI E OF DTW, MI.
Narrative: ATC FACILITY: ZOB. LOCATION: 80 NM E OF DETROIT. FOLLOWING HYD SYS #1 FAILURE, AUTOPLT WAS UNABLE TO MAINTAIN ALT. IN THE TRANSITION TO MANUAL CTL, WE EXPERIENCED A 400 FT ALTDEV. ZOB DID NOT MENTION A TFC CONFLICT OR THE ALTDEV. WE DECLARED AN EMER AFTER THE ALTDEV.
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.