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A B757-200 returned to the field after second report of overwing fuel cap leaking. Cap previously replaced. Found o-ring seal on cap defective.
| Attributes | |
| ACN | 672243 |
| Time | |
| Date | 200509 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tracon : egll.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 672243 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 4 |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X arrived with passenger reporting fuel leaking from overwing fuel port cap. With the evidence of fresh fuel leakage; suspected fuel cap was leaking. Replaced fuel cap; visually inspected fuel cap receptacle; found no evidence of leakage; signed logbook. Aircraft air interrupted again with passenger reporting fuel leaking from same area. Lead technician spoke with maintenance controller and he said to pull aircraft OTS. Maintenance controller called a fuel tank crew field trip. Field trip crew found o-ring damaged.
Original NASA ASRS Text
Title: A B757-200 RETURNED TO THE FIELD AFTER SECOND RPT OF OVERWING FUEL CAP LEAKING. CAP PREVIOUSLY REPLACED. FOUND O-RING SEAL ON CAP DEFECTIVE.
Narrative: ACFT X ARRIVED WITH PAX RPTING FUEL LEAKING FROM OVERWING FUEL PORT CAP. WITH THE EVIDENCE OF FRESH FUEL LEAKAGE; SUSPECTED FUEL CAP WAS LEAKING. REPLACED FUEL CAP; VISUALLY INSPECTED FUEL CAP RECEPTACLE; FOUND NO EVIDENCE OF LEAKAGE; SIGNED LOGBOOK. ACFT AIR INTERRUPTED AGAIN WITH PAX RPTING FUEL LEAKING FROM SAME AREA. LEAD TECHNICIAN SPOKE WITH MAINT CTLR AND HE SAID TO PULL ACFT OTS. MAINT CTLR CALLED A FUEL TANK CREW FIELD TRIP. FIELD TRIP CREW FOUND O-RING DAMAGED.
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.