Accident Boeing 737-824 N12221, Friday 6 May 2011
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Date:Friday 6 May 2011
Type:Silhouette image of generic B738 model; specific model in this crash may look slightly different    
Boeing 737-824
Owner/operator:Continental Airlines
Registration: N12221
MSN: 28930/153
Year of manufacture:1998
Total airframe hrs:40491 hours
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Location:Greenville Airport, MS (GLH) -   United States of America
Phase: Taxi
Departure airport:Greenville, MS (GLH)
Destination airport:Houston, TX (IAH)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
A failed utility pipe caused erosion of the soil beneath the reinforced concrete ramp resulting in a void beneath the ramp surface. When the airplane taxied over this area of the ramp, the left main landing gear penetrated the concrete and sank into the void. Without the support of the soil beneath the concrete, the ramp surface was not strong enough to support the accident airplane.
Probable Cause: The failure of a utility pipe beneath the ramp surface, which caused a localized void in the soil and resulting reduction in the load bearing capability of the ramp.

Accident investigation:
Investigating agency: NTSB
Report number: DCA11FA052
Status: Investigation completed
Duration: 7 months
Download report: Final report




Revision history:

08-May-2011 14:52 harro Added
11-May-2011 01:17 vvvww Updated [Time, Aircraft type, Registration, Cn, Source, Damage, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 16:55 ASN Update Bot Updated [Cn, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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