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An ATR 72-212 aircraft may have incorrect fuel pressure switches installed in the fuel system contributing to the aircraft being grounded with fuel indication problems.
| Attributes | |
| ACN | 740279 |
| Time | |
| Date | 200704 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | ATR 72 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 740279 |
| Events | |
| Anomaly | maintenance problem : improper documentation non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Chart Or Publication |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | IPC |
Narrative:
I have a letter from ATR that read (upon further review with the design office; we find an error in the ipc for the pressure switches for the fin part number (13QA and 14QA) -- the part number should be xyz and the ipc reflects that abc can be installed here as well; which is not correct). This is one of the letters that ATR sent when the aircraft was grounded. The reason for this new report is that we use this ipc for a lot of time and could be possible that we have this part number in our aircraft installed at this moment and can be the cause of the problem with this indication in some aircraft. Could be this error in this part number because there is a difference pressure set for both.
Original NASA ASRS Text
Title: AN ATR 72-212 ACFT MAY HAVE INCORRECT FUEL PRESSURE SWITCHES INSTALLED IN THE FUEL SYS CONTRIBUTING TO THE ACFT BEING GROUNDED WITH FUEL INDICATION PROBLEMS.
Narrative: I HAVE A LETTER FROM ATR THAT READ (UPON FURTHER REVIEW WITH THE DESIGN OFFICE; WE FIND AN ERROR IN THE IPC FOR THE PRESSURE SWITCHES FOR THE FIN PART NUMBER (13QA AND 14QA) -- THE PART NUMBER SHOULD BE XYZ AND THE IPC REFLECTS THAT ABC CAN BE INSTALLED HERE AS WELL; WHICH IS NOT CORRECT). THIS IS ONE OF THE LETTERS THAT ATR SENT WHEN THE ACFT WAS GNDED. THE REASON FOR THIS NEW RPT IS THAT WE USE THIS IPC FOR A LOT OF TIME AND COULD BE POSSIBLE THAT WE HAVE THIS PART NUMBER IN OUR ACFT INSTALLED AT THIS MOMENT AND CAN BE THE CAUSE OF THE PROB WITH THIS INDICATION IN SOME ACFT. COULD BE THIS ERROR IN THIS PART NUMBER BECAUSE THERE IS A DIFFERENCE PRESSURE SET FOR BOTH.
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.