Pilot reports a missing fastener on the right engine pylon panel on A300 aircraft. A work order was issued by engineering to maintenance for corrective action.

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Attributes
ACN	672498
Time
Date	200509
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : private pilot : multi engine pilot : atp pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 210 flight time total : 10000 flight time type : 5000
ASRS Report	672498
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : repair
Supplementary
Problem Areas	Chart Or Publication Flight Crew Human Performance Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

Aircraft X assigned again after numerous pilot reports regarding right engine pylon structure. Further observation and inquiry to technical maintenance on flight abc; sep/sun/05 and on flight abd; sep/mon/05 concluded with the following information to maintenance when no further maintenance would be performed. Work order to maintenance regarding eight pilot reports inspection of panel with missing panel screw reveals absence of fastener hole at 6 O'clock position 2 inches below missing fastener. Comparison with panel same pylon outboard left engine same panels or other fleet pylons shows panel has 2 fastener holes vertically. Reason for difference unknown; and not addressed during maintenance reports.

Original NASA ASRS Text

Title: PLT RPTS A MISSING FASTENER ON THE R ENG PYLON PANEL ON A300 ACFT. A WORK ORDER WAS ISSUED BY ENGINEERING TO MAINT FOR CORRECTIVE ACTION.

Narrative: ACFT X ASSIGNED AGAIN AFTER NUMEROUS PLT RPTS REGARDING R ENG PYLON STRUCTURE. FURTHER OBSERVATION AND INQUIRY TO TECHNICAL MAINT ON FLT ABC; SEP/SUN/05 AND ON FLT ABD; SEP/MON/05 CONCLUDED WITH THE FOLLOWING INFO TO MAINT WHEN NO FURTHER MAINT WOULD BE PERFORMED. WORK ORDER TO MAINT REGARDING EIGHT PILOT RPTS INSPECTION OF PANEL WITH MISSING PANEL SCREW REVEALS ABSENCE OF FASTENER HOLE AT 6 O'CLOCK POS 2 INCHES BELOW MISSING FASTENER. COMPARISON WITH PANEL SAME PYLON OUTBOARD L ENG SAME PANELS OR OTHER FLEET PYLONS SHOWS PANEL HAS 2 FASTENER HOLES VERTICALLY. REASON FOR DIFFERENCE UNKNOWN; AND NOT ADDRESSED DURING MAINT RPTS.

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.