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An L1011-100 was dispatched in non compliance with the incorrect fuel quantity indicator installed in the underwing refueling panel.
| Attributes | |
| ACN | 483106 |
| Time | |
| Date | 200008 |
| Day | Fri |
| 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 | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance lead technician : 4 maintenance technician : 6 |
| ASRS Report | 483106 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 4 |
| ASRS Report | 483202 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other other : person 5 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other Other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : repair |
| Supplementary | |
| Problem Areas | Chart Or Publication Company Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | ILLUSTRATED PARTS CATALOG |
Narrative:
Aircraft arrived with pilot write-up of #3 fuel quantity gauge at refuel panel missing knob to set bug. I looked up the part in the aircraft illustrated parts catalog and it showed the repeater gauge called for was a wxwx-vv, illustrated parts catalog. When I pulled this number in the company computer system, it showed me the class control number xx-yy (air traffic area number). The part was pulled and installed on the aircraft. I was informed that the aircraft was grounded at another station due to the wrong part being installed. In researching the maintenance part numbers, I found that the interchangeability page for this part was unclr. When the wxwx-vv number was pulled up, the interchangeability page was very clear on what aircraft the part should be used for. Nowhere in the illustrated parts catalog does it reflect that the wxwx-vv is used on this particular aircraft. Supplemental information from acn 483202: I got my references for the job and took out the inoperative fuel gauge and installed the new fuel gauge. The operations check for the new fuel gauge was good. At a later date, I was notified by my supervisor that the part number for the fuel gauge was the wrong one.
Original NASA ASRS Text
Title: AN L1011-100 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT FUEL QUANTITY INDICATOR INSTALLED IN THE UNDERWING REFUELING PANEL.
Narrative: ACFT ARRIVED WITH PLT WRITE-UP OF #3 FUEL QUANTITY GAUGE AT REFUEL PANEL MISSING KNOB TO SET BUG. I LOOKED UP THE PART IN THE ACFT ILLUSTRATED PARTS CATALOG AND IT SHOWED THE REPEATER GAUGE CALLED FOR WAS A WXWX-VV, ILLUSTRATED PARTS CATALOG. WHEN I PULLED THIS NUMBER IN THE COMPANY COMPUTER SYSTEM, IT SHOWED ME THE CLASS CTL NUMBER XX-YY (ATA NUMBER). THE PART WAS PULLED AND INSTALLED ON THE ACFT. I WAS INFORMED THAT THE ACFT WAS GNDED AT ANOTHER STATION DUE TO THE WRONG PART BEING INSTALLED. IN RESEARCHING THE MAINT PART NUMBERS, I FOUND THAT THE INTERCHANGEABILITY PAGE FOR THIS PART WAS UNCLR. WHEN THE WXWX-VV NUMBER WAS PULLED UP, THE INTERCHANGEABILITY PAGE WAS VERY CLR ON WHAT ACFT THE PART SHOULD BE USED FOR. NOWHERE IN THE ILLUSTRATED PARTS CATALOG DOES IT REFLECT THAT THE WXWX-VV IS USED ON THIS PARTICULAR ACFT. SUPPLEMENTAL INFO FROM ACN 483202: I GOT MY REFS FOR THE JOB AND TOOK OUT THE INOP FUEL GAUGE AND INSTALLED THE NEW FUEL GAUGE. THE OPS CHK FOR THE NEW FUEL GAUGE WAS GOOD. AT A LATER DATE, I WAS NOTIFIED BY MY SUPVR THAT THE PART NUMBER FOR THE FUEL GAUGE WAS THE WRONG ONE.
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.