Air carrier large transport main landing gear collapsed at gate when aircraft being fueled for next ...

Attributes
ACN	85501
Time
Date	198804
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 9000 flight time type : 200
ASRS Report	85501
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Aircraft was preflted in accordance with company procedures and departed fort lauderdale. Flight was routine to atl, GA. Aircraft was parked at concourse gate. We departed medium large transport to connect with our next flight to dtw. After a right.O.north. In dtw the captain had a message to call (sic) at telephone no XXXX. The captain was informed that one of the main gears had collapsed on large transport while parked at the gate. As flight engineer on flight, I would like to state that no discrepancies were discovered on preflight in fll, and the flight to atl was routine. The aircraft was operated completely in compliance with company procedures, manuals, and checklist. The landing in atl was text book with a smooth T/D. At no time while I was on large transport was there any indication of a problem with any of the landing gear. Callback conversation with reporter revealed the following information: followup revealed the main trunnion failed right at the attach point. It failed after fueling had started for the next flight. G meter revealed no hard lndgs in the last six which was all it contained. This was one of the newer lgts this airline has, so is not thought that age was a factor. At this point trunnion is being checked for metal fatigue. One thought is it was somehow defective casting. FAA has investigated but is taking no action.

Original NASA ASRS Text

Title: ACR LGT MAIN LNDG GEAR COLLAPSED AT GATE WHEN ACFT BEING FUELED FOR NEXT FLT.

Narrative: ACFT WAS PREFLTED IN ACCORDANCE WITH COMPANY PROCS AND DEPARTED FORT LAUDERDALE. FLT WAS ROUTINE TO ATL, GA. ACFT WAS PARKED AT CONCOURSE GATE. WE DEPARTED MLG TO CONNECT WITH OUR NEXT FLT TO DTW. AFTER A R.O.N. IN DTW THE CAPT HAD A MESSAGE TO CALL (SIC) AT TELEPHONE NO XXXX. THE CAPT WAS INFORMED THAT ONE OF THE MAIN GEARS HAD COLLAPSED ON LGT WHILE PARKED AT THE GATE. AS FLT ENGINEER ON FLT, I WOULD LIKE TO STATE THAT NO DISCREPANCIES WERE DISCOVERED ON PREFLT IN FLL, AND THE FLT TO ATL WAS ROUTINE. THE ACFT WAS OPERATED COMPLETELY IN COMPLIANCE WITH COMPANY PROCS, MANUALS, AND CHKLIST. THE LNDG IN ATL WAS TEXT BOOK WITH A SMOOTH T/D. AT NO TIME WHILE I WAS ON LGT WAS THERE ANY INDICATION OF A PROB WITH ANY OF THE LNDG GEAR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: FOLLOWUP REVEALED THE MAIN TRUNNION FAILED RIGHT AT THE ATTACH POINT. IT FAILED AFTER FUELING HAD STARTED FOR THE NEXT FLT. G METER REVEALED NO HARD LNDGS IN THE LAST SIX WHICH WAS ALL IT CONTAINED. THIS WAS ONE OF THE NEWER LGTS THIS AIRLINE HAS, SO IS NOT THOUGHT THAT AGE WAS A FACTOR. AT THIS POINT TRUNNION IS BEING CHKED FOR METAL FATIGUE. ONE THOUGHT IS IT WAS SOMEHOW DEFECTIVE CASTING. FAA HAS INVESTIGATED BUT IS TAKING NO ACTION.

Data retrieved from NASA's ASRS site as of August 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.

Air carrier large transport main landing gear collapsed at gate when aircraft being fueled for next flight.