 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B767-300 with fuselage skin bird strike damage is improperly repaired and rejected by inspection but cleared for service by management.
| Attributes | |
| ACN | 510540 |
| Time | |
| Date | 200105 |
| Day | Thu |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : ith.tower |
| 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 |
| ASRS Report | 510540 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician oversight : supervisor |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : birds maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : person1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : engineering procedure performance deficiency : scheduled maintenance performance deficiency : repair performance deficiency : non compliance with legal requirements performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Company Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Bird strike at body station 145 WL230 lbl 35. 1) external repair strap was fabricated for a compound curved skin using a flat roller causing the repair strip to not closely fit the skin. The strap was strongly preloaded. When force was applied to one area of strap, strong and obvious deflection was evident in other areas. Objections were raised and quality assurance 'red carded' the strap/doubler as preloaded. Quality assurance supervisor signed off the 'red card' and the strap was installed with a preload.
Original NASA ASRS Text
Title: A B767-300 WITH FUSELAGE SKIN BIRD STRIKE DAMAGE IS IMPROPERLY REPAIRED AND REJECTED BY INSPECTION BUT CLRED FOR SVC BY MGMNT.
Narrative: BIRD STRIKE AT BODY STATION 145 WL230 LBL 35. 1) EXTERNAL REPAIR STRAP WAS FABRICATED FOR A COMPOUND CURVED SKIN USING A FLAT ROLLER CAUSING THE REPAIR STRIP TO NOT CLOSELY FIT THE SKIN. THE STRAP WAS STRONGLY PRELOADED. WHEN FORCE WAS APPLIED TO ONE AREA OF STRAP, STRONG AND OBVIOUS DEFLECTION WAS EVIDENT IN OTHER AREAS. OBJECTIONS WERE RAISED AND QUALITY ASSURANCE 'RED CARDED' THE STRAP/DOUBLER AS PRELOADED. QUALITY ASSURANCE SUPVR SIGNED OFF THE 'RED CARD' AND THE STRAP WAS INSTALLED WITH A PRELOAD.
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.