 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B757-200 with EICAS message 'elev feel.' while troubleshooting per the manual an auxiliary pitot system test was inadvertently omitted.
| Attributes | |
| ACN | 598144 |
| Time | |
| Date | 200310 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 15 |
| ASRS Report | 598144 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : eicas warning other other : 969 |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : manuals performance deficiency : testing performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : fault isolation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On oct/thu/03, aircraft X arrived at ZZZ airport gate X with an ecias message 'elev feel' displayed. While troubleshooting per the fault isolation manual (fim) one of the troubleshooting steps was misinterpreted and consequently resulted in the step to be omitted from the troubleshooting process. The step omitted was supply pressure to the auxiliary pitot system. Prior to aircraft departure from station error was caught, auxiliary pitot system was pressurized with no leaks detected.
Original NASA ASRS Text
Title: A B757-200 WITH EICAS MESSAGE 'ELEV FEEL.' WHILE TROUBLESHOOTING PER THE MANUAL AN AUX PITOT SYS TEST WAS INADVERTENTLY OMITTED.
Narrative: ON OCT/THU/03, ACFT X ARRIVED AT ZZZ ARPT GATE X WITH AN ECIAS MESSAGE 'ELEV FEEL' DISPLAYED. WHILE TROUBLESHOOTING PER THE FAULT ISOLATION MANUAL (FIM) ONE OF THE TROUBLESHOOTING STEPS WAS MISINTERPRETED AND CONSEQUENTLY RESULTED IN THE STEP TO BE OMITTED FROM THE TROUBLESHOOTING PROCESS. THE STEP OMITTED WAS SUPPLY PRESSURE TO THE AUX PITOT SYS. PRIOR TO ACFT DEP FROM STATION ERROR WAS CAUGHT, AUX PITOT SYS WAS PRESSURIZED WITH NO LEAKS DETECTED.
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.