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A B767-300ER returned to the field due to an engine core cowling opening in-flight incurring damage to the pylon and cowling.
| Attributes | |
| ACN | 559056 |
| Time | |
| Date | 200208 |
| Day | Sat |
| 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 | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 1.5 |
| ASRS Report | 559056 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : testing performance deficiency : scheduled maintenance performance deficiency : logbook entry performance deficiency : installation performance deficiency : inspection performance deficiency : training |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Working on aircraft X on aug/sat/02, I worked the general items of the layover while my co-worker opened both engines of the aircraft. I helped my co-worker perform the start/stability bleed valve inspection on both engines, and I svced and closed #2 engine and verified that engine #1 my co-worker's engine, was closed. I was surprised to hear that the core cowl came open during flight.
Original NASA ASRS Text
Title: A B767-300ER RETURNED TO THE FIELD DUE TO AN ENG CORE COWLING OPENING INFLT INCURRING DAMAGE TO THE PYLON AND COWLING.
Narrative: WORKING ON ACFT X ON AUG/SAT/02, I WORKED THE GENERAL ITEMS OF THE LAYOVER WHILE MY CO-WORKER OPENED BOTH ENGS OF THE ACFT. I HELPED MY CO-WORKER PERFORM THE START/STABILITY BLEED VALVE INSPECTION ON BOTH ENGS, AND I SVCED AND CLOSED #2 ENG AND VERIFIED THAT ENG #1 MY CO-WORKER'S ENG, WAS CLOSED. I WAS SURPRISED TO HEAR THAT THE CORE COWL CAME OPEN DURING FLT.
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.