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A B767-200 air conditioning system component overhaul shop did not accomplish a required 5000 hour bearing replacement. This resulted in a diversion with smoke in the cabin and cockpit.
| Attributes | |
| ACN | 592560 |
| Time | |
| Date | 200308 |
| Day | Sun |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 35 |
| ASRS Report | 592560 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far other anomaly |
| Independent Detector | other other : person 1 |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : scheduled maintenance performance deficiency : testing performance deficiency : repair performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I proceeded a unit X serial number 1010AL on apr/thu/01. Data indicates that no bearings were replaced at that shop visit. The component maintenance manual has a temporary supplement dated prior to apr/thu/01 that directs that part to have its bearings replaced after 5000 hours of on wing tie or if the time is not able to be determined. I may have overlooked the time requirement for replacing the bearings or entered inaccurate data.
Original NASA ASRS Text
Title: A B767-200 AIR CONDITIONING SYS COMPONENT OVERHAUL SHOP DID NOT ACCOMPLISH A REQUIRED 5000 HR BEARING REPLACEMENT. THIS RESULTED IN A DIVERSION WITH SMOKE IN THE CABIN AND COCKPIT.
Narrative: I PROCEEDED A UNIT X SERIAL NUMBER 1010AL ON APR/THU/01. DATA INDICATES THAT NO BEARINGS WERE REPLACED AT THAT SHOP VISIT. THE COMPONENT MAINT MANUAL HAS A TEMPORARY SUPPLEMENT DATED PRIOR TO APR/THU/01 THAT DIRECTS THAT PART TO HAVE ITS BEARINGS REPLACED AFTER 5000 HRS OF ON WING TIE OR IF THE TIME IS NOT ABLE TO BE DETERMINED. I MAY HAVE OVERLOOKED THE TIME REQUIREMENT FOR REPLACING THE BEARINGS OR ENTERED INACCURATE DATA.
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.