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A B757-200 when reversing on landing the #2 engine bifurcation 'C' duct opened and caused damage to the reverser translating ring.
| Attributes | |
| ACN | 395260 |
| Time | |
| Date | 199802 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 395260 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
On feb/xa/98, at OX30 at air carrier ZZZ heavy maintenance hangar I resecured the forward 2 latches of the #2 engine 'C' duct and verified the security of the remaining latches and then closed and latched the bifurcation doors on aircraft xyz. On feb/xx/98, at XZ00 in ZZZ arriving from clt the thrust reverser was deployed, the bifurcation doors opened, the thrust reverser was stowed and the translating cowl was damaged. I understand similar damage has occurred on other air carrier B757's and may have occurred at other acrs. I don't know why the doors opened but I do know that they were properly latched. Callback conversation with reporter revealed the following information: the reporter stated the latches were locked on the 'C' duct and were verified locked by an inspector. The reporter said the safety representative reported several other open cowling incidents on takeoff, landing and high power settings on the ground with this air carrier. The reporter stated the FAA has made no contact.
Original NASA ASRS Text
Title: A B757-200 WHEN REVERSING ON LNDG THE #2 ENG BIFURCATION 'C' DUCT OPENED AND CAUSED DAMAGE TO THE REVERSER TRANSLATING RING.
Narrative: ON FEB/XA/98, AT OX30 AT ACR ZZZ HVY MAINT HANGAR I RESECURED THE FORWARD 2 LATCHES OF THE #2 ENG 'C' DUCT AND VERIFIED THE SECURITY OF THE REMAINING LATCHES AND THEN CLOSED AND LATCHED THE BIFURCATION DOORS ON ACFT XYZ. ON FEB/XX/98, AT XZ00 IN ZZZ ARRIVING FROM CLT THE THRUST REVERSER WAS DEPLOYED, THE BIFURCATION DOORS OPENED, THE THRUST REVERSER WAS STOWED AND THE TRANSLATING COWL WAS DAMAGED. I UNDERSTAND SIMILAR DAMAGE HAS OCCURRED ON OTHER ACR B757'S AND MAY HAVE OCCURRED AT OTHER ACRS. I DON'T KNOW WHY THE DOORS OPENED BUT I DO KNOW THAT THEY WERE PROPERLY LATCHED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE LATCHES WERE LOCKED ON THE 'C' DUCT AND WERE VERIFIED LOCKED BY AN INSPECTOR. THE RPTR SAID THE SAFETY REPRESENTATIVE RPTED SEVERAL OTHER OPEN COWLING INCIDENTS ON TKOF, LNDG AND HIGH PWR SETTINGS ON THE GND WITH THIS ACR. THE RPTR STATED THE FAA HAS MADE NO CONTACT.
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.