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A B757-200 during preflight check first officer discovered the trailing edge of the right elevator damaged. Maintenance in ZZZ reported damage caused by a stair truck, but don't know date or time.
| Attributes | |
| ACN | 504664 |
| Time | |
| Date | 200102 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tower : sju.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 12000 flight time type : 1500 |
| ASRS Report | 504664 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical ground encounters : vehicle maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : logbook entry performance deficiency : repair performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Company Environmental Factor Maintenance Human Performance Flight Crew Human Performance |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | MAINT MANUAL REQUIRED INSP |
Narrative:
Aircraft arrived at the gate from the maintenance hangar after a terminal check. Aircraft was visually inspected by maintenance after arrival. I then completed a visual walkaround and found everything normal. After arrival at abc, [during] my walkaround of the aircraft, I found the trailing edge of the right elevator damaged. Further inspection found considerable damage on the top of the elevator. No damage was visible at XXX during preflight by both myself and maintenance. Aircraft was grounded until elevator was replaced. Maintenance at ZZZ said the plane was struck by a stair truck, but didn't know when. The area of damage would not be visible from the ground from any position. The missing chunk of elevator apparently came off after air pressure was applied during flight. No control indications of vibration were noted.
Original NASA ASRS Text
Title: A B757-200 DURING PREFLT CHK FO DISCOVERED THE TRAILING EDGE OF THE R ELEVATOR DAMAGED. MAINT IN ZZZ RPTED DAMAGE CAUSED BY A STAIR TRUCK, BUT DON'T KNOW DATE OR TIME.
Narrative: ACFT ARRIVED AT THE GATE FROM THE MAINT HANGAR AFTER A TERMINAL CHK. ACFT WAS VISUALLY INSPECTED BY MAINT AFTER ARR. I THEN COMPLETED A VISUAL WALKAROUND AND FOUND EVERYTHING NORMAL. AFTER ARR AT ABC, [DURING] MY WALKAROUND OF THE ACFT, I FOUND THE TRAILING EDGE OF THE R ELEVATOR DAMAGED. FURTHER INSPECTION FOUND CONSIDERABLE DAMAGE ON THE TOP OF THE ELEVATOR. NO DAMAGE WAS VISIBLE AT XXX DURING PREFLT BY BOTH MYSELF AND MAINT. ACFT WAS GNDED UNTIL ELEVATOR WAS REPLACED. MAINT AT ZZZ SAID THE PLANE WAS STRUCK BY A STAIR TRUCK, BUT DIDN'T KNOW WHEN. THE AREA OF DAMAGE WOULD NOT BE VISIBLE FROM THE GND FROM ANY POS. THE MISSING CHUNK OF ELEVATOR APPARENTLY CAME OFF AFTER AIR PRESSURE WAS APPLIED DURING FLT. NO CTL INDICATIONS OF VIBRATION WERE NOTED.
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.