 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-300 #1 fuel quantity indicator showed a fault 'code 5.' tested system per maintenance manual and noted code 5 normal operation. Compared cockpit indicator with fueling panel. Checked ok.
| Attributes | |
| ACN | 650449 |
| Time | |
| Date | 200501 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance lead technician : 1 maintenance technician : 21 |
| ASRS Report | 650449 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : coordinator |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : logbook entry performance deficiency : fault isolation performance deficiency : testing |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
On nov/wed/05 I was called to address a logbook discrepancy on aircraft X for #1 fuel gauge displaying error code 5. I first performed a fuel quantity test. When error code 5 still displayed; I called maintenance control for MEL relief. The controller I spoke to (not sure of name) directed me to the MEL book referencing 28-6 indicating that error code 5 is considered normal operating condition per note 2. He then asked me to compare the flight deck fuel quantity gauge to the pressure fueling station gauge to verify the fuel gauges indicated the same. If they were accurate; I could then dispatch the aircraft. Based on this information; I signed off the logbook and dispatched the aircraft.
Original NASA ASRS Text
Title: A B737-300 #1 FUEL QUANTITY INDICATOR SHOWED A FAULT 'CODE 5.' TESTED SYS PER MAINT MANUAL AND NOTED CODE 5 NORMAL OP. COMPARED COCKPIT INDICATOR WITH FUELING PANEL. CHKED OK.
Narrative: ON NOV/WED/05 I WAS CALLED TO ADDRESS A LOGBOOK DISCREPANCY ON ACFT X FOR #1 FUEL GAUGE DISPLAYING ERROR CODE 5. I FIRST PERFORMED A FUEL QUANTITY TEST. WHEN ERROR CODE 5 STILL DISPLAYED; I CALLED MAINT CTL FOR MEL RELIEF. THE CTLR I SPOKE TO (NOT SURE OF NAME) DIRECTED ME TO THE MEL BOOK REFING 28-6 INDICATING THAT ERROR CODE 5 IS CONSIDERED NORMAL OPERATING CONDITION PER NOTE 2. HE THEN ASKED ME TO COMPARE THE FLT DECK FUEL QUANTITY GAUGE TO THE PRESSURE FUELING STATION GAUGE TO VERIFY THE FUEL GAUGES INDICATED THE SAME. IF THEY WERE ACCURATE; I COULD THEN DISPATCH THE ACFT. BASED ON THIS INFO; I SIGNED OFF THE LOGBOOK AND DISPATCHED THE ACFT.
Data retrieved from NASA's ASRS site as of January 2009 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.