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A B-777 arrived with a bird strike on the right wing inboard flap; lower surface. Mechanic was instructed by engineering to ignore the lengthy cleaning procedures called out in their carrier's general manual.
| Attributes | |
| ACN | 766600 |
| Time | |
| Date | 200712 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 766600 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Company Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X arrived with a bird strike on the r-hand wing inboard flap lower surface. According to the maintenance manual 'wash affected area per aircraft appearance manual air carrier specification (wet wash).' this reference is a heavy cleaning involving a designated wash area; pitot covers; and hot blasting. This is an incorrect procedure; in my opinion; to wash off a simple bird strike. Engineering instructed me to just use the cleaning agents specified and ignore the lengthy cleaning procedure.
Original NASA ASRS Text
Title: A B-777 ARRIVED WITH A BIRD STRIKE ON THE R WING INBOARD FLAP; LOWER SURFACE. MECHANIC WAS INSTRUCTED BY ENGINEERING TO IGNORE THE LENGTHY CLEANING PROCEDURES CALLED OUT IN THEIR CARRIER'S GENERAL MANUAL.
Narrative: ACFT X ARRIVED WITH A BIRD STRIKE ON THE R-HAND WING INBOARD FLAP LOWER SURFACE. ACCORDING TO THE MAINT MANUAL 'WASH AFFECTED AREA PER ACFT APPEARANCE MANUAL ACR SPEC (WET WASH).' THIS REF IS A HVY CLEANING INVOLVING A DESIGNATED WASH AREA; PITOT COVERS; AND HOT BLASTING. THIS IS AN INCORRECT PROC; IN MY OPINION; TO WASH OFF A SIMPLE BIRD STRIKE. ENGINEERING INSTRUCTED ME TO JUST USE THE CLEANING AGENTS SPECIFIED AND IGNORE THE LENGTHY CLEANING PROC.
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.