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A B767-300 APU ground connection was incorrectly signed off as accomplished. But the lug faying surface was found not cleaned.
| Attributes | |
| ACN | 581289 |
| Time | |
| Date | 200304 |
| Day | Wed |
| 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 | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| ASRS Report | 581289 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : fcc |
| ASRS Report | 581291 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : work cards performance deficiency : logbook entry performance deficiency : inspection performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On card eco B767 APU battery dual ground installation. Avionics mechanic requested a qa buyback to measure resistance. Step C(5), step D(4) and D(6). Watching him, and getting good measurements readings for each step per card. I stamped qa sign-offs. I notice step C(3) mechanic has signed off his box, also step C(4) box. But qa buyback on step C(3) wasn't done. I stamped off that box thinking that fay surface was cleaned because we got good resistance reading on each step.
Original NASA ASRS Text
Title: A B767-300 APU GND CONNECTION WAS INCORRECTLY SIGNED OFF AS ACCOMPLISHED. BUT THE LUG FAYING SURFACE WAS FOUND NOT CLEANED.
Narrative: ON CARD ECO B767 APU BATTERY DUAL GND INSTALLATION. AVIONICS MECH REQUESTED A QA BUYBACK TO MEASURE RESISTANCE. STEP C(5), STEP D(4) AND D(6). WATCHING HIM, AND GETTING GOOD MEASUREMENTS READINGS FOR EACH STEP PER CARD. I STAMPED QA SIGN-OFFS. I NOTICE STEP C(3) MECH HAS SIGNED OFF HIS BOX, ALSO STEP C(4) BOX. BUT QA BUYBACK ON STEP C(3) WASN'T DONE. I STAMPED OFF THAT BOX THINKING THAT FAY SURFACE WAS CLEANED BECAUSE WE GOT GOOD RESISTANCE READING ON EACH STEP.
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.