37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 528963 |
Time | |
Date | 200110 |
Day | Mon |
Place | |
Locale Reference | airport : zzz.airport |
State Reference | US |
Altitude | agl single value : 0 |
Aircraft 1 | |
Controlling Facilities | tower : gpm.tower |
Operator | common carrier : air carrier |
Operating Under FAR Part | Part 121 |
Flight Phase | ground : maintenance |
Person 1 | |
Affiliation | company : air carrier |
Function | maintenance : lead technician |
Qualification | technician : powerplant technician : airframe |
ASRS Report | 528963 |
Person 2 | |
Affiliation | company : air carrier |
Function | maintenance : technician |
Events | |
Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
Resolutory Action | none taken : detected after the fact |
Consequence | other |
Factors | |
Maintenance | contributing factor : work cards contributing factor : lighting performance deficiency : testing performance deficiency : repair performance deficiency : installation performance deficiency : inspection performance deficiency : fault isolation performance deficiency : logbook entry |
Supplementary | |
Problem Areas | Aircraft Maintenance Human Performance Chart Or Publication |
Primary Problem | Maintenance Human Performance |
Narrative:
On oct/mon/01, as lead technician on aircraft, I was given the tasks of replacing the starter/generator, gcu, and the start contactor relay due to a failure of the #1 engine dc generator system. I had a mechanic replace the starter/generator while I changed the remaining items. The mechanic and I both signed for the work on 1 write-up. At a follow-up maintenance base some terminals were found to be loose within the dc contactor box. Would recommend that the practice of 2 mechanics signing one write-up be discontinued as work was completed in 2 different locations on the aircraft and that closer attention to detail be paid to completed work including a more detailed area safety check and the addition of adding torque-stripe paint to the nut and studs inside the contactor box.
Original NASA ASRS Text
Title: A DEHAVILLAND -8 WAS DISPATCHED IN NON COMPLIANCE WITH LOOSE ELECTRICAL TERMINALS IN THE DC CONTACTOR BOX. DC GENERATOR, GENERATOR CTL UNIT, AND START CONTACTOR RELAY REPLACED PRIOR TO DEP.
Narrative: ON OCT/MON/01, AS LEAD TECHNICIAN ON ACFT, I WAS GIVEN THE TASKS OF REPLACING THE STARTER/GENERATOR, GCU, AND THE START CONTACTOR RELAY DUE TO A FAILURE OF THE #1 ENG DC GENERATOR SYS. I HAD A MECH REPLACE THE STARTER/GENERATOR WHILE I CHANGED THE REMAINING ITEMS. THE MECH AND I BOTH SIGNED FOR THE WORK ON 1 WRITE-UP. AT A FOLLOW-UP MAINT BASE SOME TERMINALS WERE FOUND TO BE LOOSE WITHIN THE DC CONTACTOR BOX. WOULD RECOMMEND THAT THE PRACTICE OF 2 MECHS SIGNING ONE WRITE-UP BE DISCONTINUED AS WORK WAS COMPLETED IN 2 DIFFERENT LOCATIONS ON THE ACFT AND THAT CLOSER ATTN TO DETAIL BE PAID TO COMPLETED WORK INCLUDING A MORE DETAILED AREA SAFETY CHK AND THE ADDITION OF ADDING TORQUE-STRIPE PAINT TO THE NUT AND STUDS INSIDE THE CONTACTOR BOX.
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.