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A mechanic and inspector took over a nose cowl replacement of the #2 engine on a B757-200 aircraft. The PT2 probe heat cannon plug was not connected.
| Attributes | |
| ACN | 778103 |
| Time | |
| Date | 200803 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 778103 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| ASRS Report | 778102 |
| Events | |
| Anomaly | maintenance problem : improper maintenance |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : engineering procedure contributing factor : briefing contributing factor : work cards performance deficiency : scheduled maintenance performance deficiency : testing performance deficiency : installation performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
We took over a nose cowl replacement from the prior shift due to an open item on the #2 engine. We worked off a work card from a c-chk; and performed all work in accordance with the paperwork. I checked the complete installation of the nose cowl found everything to be hooked up satisfactory. This work card may need to include the operation check of the engine probe heat. The work card does not give reference to maintenance manual either for such task. As far as I know all procedures were indeed followed. I performed the check of the installation; found everything to be installed correctly. Supplemental information from acn 778102: working with 2 other mechanics; and miscom with them for final check and inspection for all items to be connected. Worked on the outboard half of the nose cowl installation; with 2 other mechanics. The PT2 probe heat cannon plug was not connected. This cannon plug is located on the inboard side of the nose cowl. This does not relieve me of a visual inspection; prior to close.
Original NASA ASRS Text
Title: A MECHANIC AND INSPECTOR TOOK OVER A NOSE COWL REPLACEMENT OF THE #2 ENG ON A B757-200 ACFT. THE PT2 PROBE HEAT CANNON PLUG WAS NOT CONNECTED.
Narrative: WE TOOK OVER A NOSE COWL REPLACEMENT FROM THE PRIOR SHIFT DUE TO AN OPEN ITEM ON THE #2 ENG. WE WORKED OFF A WORK CARD FROM A C-CHK; AND PERFORMED ALL WORK IN ACCORDANCE WITH THE PAPERWORK. I CHKED THE COMPLETE INSTALLATION OF THE NOSE COWL FOUND EVERYTHING TO BE HOOKED UP SATISFACTORY. THIS WORK CARD MAY NEED TO INCLUDE THE OP CHK OF THE ENG PROBE HEAT. THE WORK CARD DOES NOT GIVE REF TO MAINT MANUAL EITHER FOR SUCH TASK. AS FAR AS I KNOW ALL PROCS WERE INDEED FOLLOWED. I PERFORMED THE CHK OF THE INSTALLATION; FOUND EVERYTHING TO BE INSTALLED CORRECTLY. SUPPLEMENTAL INFO FROM ACN 778102: WORKING WITH 2 OTHER MECHS; AND MISCOM WITH THEM FOR FINAL CHK AND INSPECTION FOR ALL ITEMS TO BE CONNECTED. WORKED ON THE OUTBOARD HALF OF THE NOSE COWL INSTALLATION; WITH 2 OTHER MECHS. THE PT2 PROBE HEAT CANNON PLUG WAS NOT CONNECTED. THIS CANNON PLUG IS LOCATED ON THE INBOARD SIDE OF THE NOSE COWL. THIS DOES NOT RELIEVE ME OF A VISUAL INSPECTION; PRIOR TO CLOSE.
Data retrieved from NASA's ASRS site as of May 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.