<< >> NASA ASRS Report 368996, May 1997

A widebody transport commercial aircraft on climb out had the left main landing gear strut fairing come loose and vibrate. Strut departed aircraft on final at destination.

Attributes
ACN	368996
Time
Date	199705
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : amg
State Reference	GA
Altitude	msl bound lower : 28500 msl bound upper : 28500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : zjx
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 20000 flight time type : 3600
ASRS Report	368996
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 217 flight time total : 7916 flight time type : 6167
ASRS Report	369570
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other flight crewa other other : unspecified cockpit
Resolutory Action	none taken : detected after the fact
Consequence	other Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On climb through 28600 ft, felt a bump similar to a shifting cargo bin. All system normal, visual check of cabin and wings normal with a possible slight vibration in mid- cabin area. With no other indications we went to destination (stl) at 29000/28000 ft and reduced speed. Used a slow speed descent (no speed brakes) and conservative speeds for landing confign. No other abnormalities felt. Configured east of mississippi river and on straight-in final to stl runway 30L. At no time did we overfly city of st louis. After landing we discovered the l-hand main gear strut fairing was missing and it was later reported to have fallen on a city street in st louis. It would have to sail into the wind approximately 4-5 mi to get to that point. (Wind 270-300 degree at 15 KTS.)

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Original NASA ASRS Text

Title: A WDB COMMERCIAL ACFT ON CLBOUT HAD THE L MAIN LNDG GEAR STRUT FAIRING COME LOOSE AND VIBRATE. STRUT DEPARTED ACFT ON FINAL AT DEST.

Narrative: ON CLB THROUGH 28600 FT, FELT A BUMP SIMILAR TO A SHIFTING CARGO BIN. ALL SYS NORMAL, VISUAL CHK OF CABIN AND WINGS NORMAL WITH A POSSIBLE SLIGHT VIBRATION IN MID- CABIN AREA. WITH NO OTHER INDICATIONS WE WENT TO DEST (STL) AT 29000/28000 FT AND REDUCED SPD. USED A SLOW SPD DSCNT (NO SPD BRAKES) AND CONSERVATIVE SPDS FOR LNDG CONFIGN. NO OTHER ABNORMALITIES FELT. CONFIGURED E OF MISSISSIPPI RIVER AND ON STRAIGHT-IN FINAL TO STL RWY 30L. AT NO TIME DID WE OVERFLY CITY OF ST LOUIS. AFTER LNDG WE DISCOVERED THE L-HAND MAIN GEAR STRUT FAIRING WAS MISSING AND IT WAS LATER RPTED TO HAVE FALLEN ON A CITY STREET IN ST LOUIS. IT WOULD HAVE TO SAIL INTO THE WIND APPROX 4-5 MI TO GET TO THAT POINT. (WIND 270-300 DEG AT 15 KTS.)

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.