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A line mechanic reports he did not pull and collar circuit breakers that were called out in their md-11 aircraft maintenance manual (amm) chapter 71-10-00-2 for replacement of the # 1 engine integrated drive generator (idg). He had been working multiple gates and the out of service (OTS) md-11 aircraft.
| Attributes | |
| ACN | 1010625 |
| Time | |
| Date | 201205 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Circuit Breaker / Fuse / Thermocouple |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Experience | Maintenance Technician 28 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
Opened the # 1 engine left-hand engine cowl and thrust reverser (T/right) on an md-11 aircraft at gate XXX for hanger crew to remove and replace (right/right) the # 1 engine integrated drive generator (idg). Did not pull and collar the circuit breakers called out in the aircraft maintenance manual (amm) 71-10-00-2-1. Was working other gates and also right after cowling was opened; hanger mechanics showed up and I gave them a turnover and forgot to pull and collar circuit breakers. I was working other gates that night; things were hectic and [I] was going back and forth to other aircraft. I did miss pulling and collaring the circuit breakers. I think if one is assigned to work an out of service (OTS) aircraft; you should be relieved of all other gates. We normally work with a shortage of manpower.
Original NASA ASRS Text
Title: A Line Mechanic reports he did not pull and collar Circuit Breakers that were called out in their MD-11 Aircraft Maintenance Manual (AMM) Chapter 71-10-00-2 for replacement of the # 1 Engine Integrated Drive Generator (IDG). He had been working multiple gates and the Out of Service (OTS) MD-11 aircraft.
Narrative: Opened the # 1 engine left-hand engine cowl and thrust reverser (T/R) on an MD-11 aircraft at Gate XXX for hanger crew to Remove and Replace (R/R) the # 1 Engine Integrated Drive Generator (IDG). Did not pull and collar the circuit breakers called out in the Aircraft Maintenance Manual (AMM) 71-10-00-2-1. Was working other gates and also right after cowling was opened; hanger mechanics showed up and I gave them a turnover and forgot to pull and collar circuit breakers. I was working other gates that night; things were hectic and [I] was going back and forth to other aircraft. I did miss pulling and collaring the circuit breakers. I think if one is assigned to work an Out of Service (OTS) aircraft; you should be relieved of all other gates. We normally work with a shortage of manpower.
Data retrieved from NASA's ASRS site as of July 2013 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.