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Mechanic reports he pulled circuit breakers on the dehavilland dhc-8-400 for predock into hangar for heavy check; but neglected to collar them.
| Attributes | |
| ACN | 803965 |
| Time | |
| Date | 200809 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : cyyz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Q400 (Formerly Dash 8-400) |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 803965 |
| Events | |
| Anomaly | maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : scheduled maintenance performance deficiency : installation performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was given the task of preparing the aircraft for pre-dock into the hangar for heavy check. One of the tasks on the task card is to pull circuit breaker and collar them. I pulled the required breakers and neglected to collar them. Cause: I pulled the breakers and realized that I forgot to bring the collars with me. I went to acquire them and when I left the aircraft; I was distraction by another mechanic asking a question. The end of the shift then occurred and I forgot to get the collars and place them on the pulled breakers. I was asked by my lead if I had collared the breakers. I then told him no; and outlined what happened. Collars were placed on the pulled breakers.
Original NASA ASRS Text
Title: MECHANIC REPORTS HE PULLED CIRCUIT BREAKERS ON THE DEHAVILLAND DHC-8-400 FOR PREDOCK INTO HANGAR FOR HEAVY CHECK; BUT NEGLECTED TO COLLAR THEM.
Narrative: I WAS GIVEN THE TASK OF PREPARING THE ACFT FOR PRE-DOCK INTO THE HANGAR FOR HVY CHK. ONE OF THE TASKS ON THE TASK CARD IS TO PULL CIRCUIT BREAKER AND COLLAR THEM. I PULLED THE REQUIRED BREAKERS AND NEGLECTED TO COLLAR THEM. CAUSE: I PULLED THE BREAKERS AND REALIZED THAT I FORGOT TO BRING THE COLLARS WITH ME. I WENT TO ACQUIRE THEM AND WHEN I LEFT THE ACFT; I WAS DISTR BY ANOTHER MECH ASKING A QUESTION. THE END OF THE SHIFT THEN OCCURRED AND I FORGOT TO GET THE COLLARS AND PLACE THEM ON THE PULLED BREAKERS. I WAS ASKED BY MY LEAD IF I HAD COLLARED THE BREAKERS. I THEN TOLD HIM NO; AND OUTLINED WHAT HAPPENED. COLLARS WERE PLACED ON THE PULLED BREAKERS.
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.