 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An SF340 was reported to have left wing outboard aileron delamination. Checked by lead technician and found no delamination. 2 days later during preparation for painting delamination was discovered on the aileron.
| Attributes | |
| ACN | 727111 |
| Time | |
| Date | 200702 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : bos.tower |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340A |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| ASRS Report | 727111 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other other : 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : weather performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Environmental Factor Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On feb/xa/07 I was the lead at the line during my shift. Aircraft reported possible delamination on the l-hand wing outboard aileron. It was chaotic work wise so I took it upon myself and went out to the aircraft. I performed the inspection of the aileron. At this time the only thing I found was missing paint on the aileron. I contacted maintenance for a deferred authority/authorized and spoke to maintenance. We deferred the missing paint per an engineering technical notice for 3 days. The honeycomb was found to be in 1 piece. No separation was found at time of deferral of missing paint. This day ramp was performing deice on aircraft at ramp. I got a call this morning by my fellow lead informing to do a report. I was informed that the aileron had delaminated during the 3 day time-frame for the time deferred maintenance item. I informed during the time of inspection no delamination was found only paint missing; since deicing was being performed that day it's most likely possible that the aileron delaminated afterwards during its schedule in and out of ZZZ.
Original NASA ASRS Text
Title: AN SF340 WAS RPTED TO HAVE L WING OUTBOARD AILERON DELAMINATION. CHKED BY LEAD TECHNICIAN AND FOUND NO DELAMINATION. 2 DAYS LATER DURING PREPARATION FOR PAINTING DELAMINATION WAS DISCOVERED ON THE AILERON.
Narrative: ON FEB/XA/07 I WAS THE LEAD AT THE LINE DURING MY SHIFT. ACFT RPTED POSSIBLE DELAMINATION ON THE L-HAND WING OUTBOARD AILERON. IT WAS CHAOTIC WORK WISE SO I TOOK IT UPON MYSELF AND WENT OUT TO THE ACFT. I PERFORMED THE INSPECTION OF THE AILERON. AT THIS TIME THE ONLY THING I FOUND WAS MISSING PAINT ON THE AILERON. I CONTACTED MAINT FOR A DEFERRED AUTH AND SPOKE TO MAINT. WE DEFERRED THE MISSING PAINT PER AN ENGINEERING TECHNICAL NOTICE FOR 3 DAYS. THE HONEYCOMB WAS FOUND TO BE IN 1 PIECE. NO SEPARATION WAS FOUND AT TIME OF DEFERRAL OF MISSING PAINT. THIS DAY RAMP WAS PERFORMING DEICE ON ACFT AT RAMP. I GOT A CALL THIS MORNING BY MY FELLOW LEAD INFORMING TO DO A REPORT. I WAS INFORMED THAT THE AILERON HAD DELAMINATED DURING THE 3 DAY TIME-FRAME FOR THE TIME DEFERRED MAINT ITEM. I INFORMED DURING THE TIME OF INSPECTION NO DELAMINATION WAS FOUND ONLY PAINT MISSING; SINCE DEICING WAS BEING PERFORMED THAT DAY IT'S MOST LIKELY POSSIBLE THAT THE AILERON DELAMINATED AFTERWARDS DURING ITS SCHEDULE IN AND OUT OF ZZZ.
Data retrieved from NASA's ASRS site as of January 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.