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C421 during a routine airworthiness inspection the technician installed an incorrect exhaust xover clamp.
| Attributes | |
| ACN | 657015 |
| Time | |
| Date | 200505 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Cessna Twin Piston Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Person 1 | |
| Affiliation | company : corporate |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 13 |
| ASRS Report | 657015 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | oversight : supervisor |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : installation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance performance deficiency : training |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Environmental Factor Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
Found broken 'breeze' clamp on exhaust xover pipe during routine airworthiness directive 2000-01-16 paragraph B inspection. Checked parts catalog; specified different type clamp. I have replaced wrong part with wrong parts numerous occasions this and other 421B's; other mechanic have done the same. Breeze $2; correct part $95. Also; I have signed off airworthiness directive 2000-01-16 paragraph B and an engine change with wrong support clamp. Ordered part number 4012-62-238 for both nacelles and took aircraft OTS.
Original NASA ASRS Text
Title: C421 DURING A ROUTINE AIRWORTHINESS INSPECTION THE TECHNICIAN INSTALLED AN INCORRECT EXHAUST XOVER CLAMP.
Narrative: FOUND BROKEN 'BREEZE' CLAMP ON EXHAUST XOVER PIPE DURING ROUTINE AIRWORTHINESS DIRECTIVE 2000-01-16 PARAGRAPH B INSPECTION. CHKED PARTS CATALOG; SPECIFIED DIFFERENT TYPE CLAMP. I HAVE REPLACED WRONG PART WITH WRONG PARTS NUMEROUS OCCASIONS THIS AND OTHER 421B'S; OTHER MECH HAVE DONE THE SAME. BREEZE $2; CORRECT PART $95. ALSO; I HAVE SIGNED OFF AIRWORTHINESS DIRECTIVE 2000-01-16 PARAGRAPH B AND AN ENG CHANGE WITH WRONG SUPPORT CLAMP. ORDERED PART NUMBER 4012-62-238 FOR BOTH NACELLES AND TOOK ACFT OTS.
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.