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A B727-200 while in maintenance incurred a fire in #3 engine during a welding operation. Fire was put out using a dry chemical extinguisher. Reporter states no proper cleanup method in B727 maintenance manual.
| Attributes | |
| ACN | 462042 |
| Time | |
| Date | 200002 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| 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 | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 462042 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : person1 |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : inspection performance deficiency : repair performance deficiency : training |
Narrative:
On feb/xa/00, while performing maintenance on #3 engine, a fire was started in the 13TH stage manifold area during a welding function at that time a dry chemical fire extinguisher was discharged into the 13TH stage fan section and 2 tubes just forward of manifold inside engine case. The fire was caused by some rags that were stuffed inside engine case to prevent debris from falling into lower sections of engine were ignited by the welding operation. On feb/xb/00 we were told to vacuum as much as possible of dry chemical and close and reinstall 13TH stage manifold and xover duct. Having looked at maintenance manual procedures on MD80 aircraft about dry chemical being injected into an engine, this is not proper procedure. I am in process of trying to find this in B727 maintenance manual due to scheduling of engine run. I feel that this will not be properly corrected.
Original NASA ASRS Text
Title: A B727-200 WHILE IN MAINT INCURRED A FIRE IN #3 ENG DURING A WELDING OP. FIRE WAS PUT OUT USING A DRY CHEMICAL EXTINGUISHER. RPTR STATES NO PROPER CLEANUP METHOD IN B727 MAINT MANUAL.
Narrative: ON FEB/XA/00, WHILE PERFORMING MAINT ON #3 ENG, A FIRE WAS STARTED IN THE 13TH STAGE MANIFOLD AREA DURING A WELDING FUNCTION AT THAT TIME A DRY CHEMICAL FIRE EXTINGUISHER WAS DISCHARGED INTO THE 13TH STAGE FAN SECTION AND 2 TUBES JUST FORWARD OF MANIFOLD INSIDE ENG CASE. THE FIRE WAS CAUSED BY SOME RAGS THAT WERE STUFFED INSIDE ENG CASE TO PREVENT DEBRIS FROM FALLING INTO LOWER SECTIONS OF ENG WERE IGNITED BY THE WELDING OP. ON FEB/XB/00 WE WERE TOLD TO VACUUM AS MUCH AS POSSIBLE OF DRY CHEMICAL AND CLOSE AND REINSTALL 13TH STAGE MANIFOLD AND XOVER DUCT. HAVING LOOKED AT MAINT MANUAL PROCS ON MD80 ACFT ABOUT DRY CHEMICAL BEING INJECTED INTO AN ENG, THIS IS NOT PROPER PROC. I AM IN PROCESS OF TRYING TO FIND THIS IN B727 MAINT MANUAL DUE TO SCHEDULING OF ENG RUN. I FEEL THAT THIS WILL NOT BE PROPERLY CORRECTED.
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.