 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An MD80 was dispatched in non compliance with a 6600 pound fuel imbal caused by improper fueling procedures.
| Attributes | |
| ACN | 478851 |
| Time | |
| Date | 200007 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| 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 | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 478851 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 478847 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 1 |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | faa : investigated other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : testing performance deficiency : repair |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was notified by the fueling supervisor that the above aircraft had a fuel imbal condition, too much fuel in right main tank. I sent technician wxxz out to investigate. The right main tank had 10200 pounds, left tank had about 4300 pounds and center tank had about 6400 pounds. I went out and verified fuel onboard and watched wxxz xfer fuel from right tank to center and left tank until we were left with 9200 pounds in right tank. Fuel xfer was normal, right tank decreased in 50 pound increments, and center and left tank increased the same. Total fuel quantity remained the same. The quantity indicator system was tested by flight crew before fuel xfer and found to be normal. The aircraft was fueled to its fuel load, left main 9200 pounds, center 6800 pounds, right 9200 pounds. Flight crew again tested fuel quantity with no discrepancies. The aircraft departed and air interrupted with fuel imbal. Right main dropped to 2600 pounds on climb. When aircraft returned right tank was placarded according to MEL.
Original NASA ASRS Text
Title: AN MD80 WAS DISPATCHED IN NON COMPLIANCE WITH A 6600 LB FUEL IMBAL CAUSED BY IMPROPER FUELING PROCS.
Narrative: I WAS NOTIFIED BY THE FUELING SUPVR THAT THE ABOVE ACFT HAD A FUEL IMBAL CONDITION, TOO MUCH FUEL IN R MAIN TANK. I SENT TECHNICIAN WXXZ OUT TO INVESTIGATE. THE R MAIN TANK HAD 10200 LBS, L TANK HAD ABOUT 4300 LBS AND CTR TANK HAD ABOUT 6400 LBS. I WENT OUT AND VERIFIED FUEL ONBOARD AND WATCHED WXXZ XFER FUEL FROM R TANK TO CTR AND L TANK UNTIL WE WERE LEFT WITH 9200 LBS IN R TANK. FUEL XFER WAS NORMAL, R TANK DECREASED IN 50 LB INCREMENTS, AND CTR AND L TANK INCREASED THE SAME. TOTAL FUEL QUANTITY REMAINED THE SAME. THE QUANTITY INDICATOR SYS WAS TESTED BY FLC BEFORE FUEL XFER AND FOUND TO BE NORMAL. THE ACFT WAS FUELED TO ITS FUEL LOAD, L MAIN 9200 LBS, CTR 6800 LBS, R 9200 LBS. FLC AGAIN TESTED FUEL QUANTITY WITH NO DISCREPANCIES. THE ACFT DEPARTED AND AIR INTERRUPTED WITH FUEL IMBAL. R MAIN DROPPED TO 2600 LBS ON CLB. WHEN ACFT RETURNED R TANK WAS PLACARDED ACCORDING TO MEL.
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.