After normal landing and roll out of their B737-700 aircraft; pilot feels a bump on the nose gear th...

Attributes
ACN	806726
Time
Date	200810
Local Time Of Day	0001 To 0600
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	B737-700
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 217 flight time type : 12500
ASRS Report	806726
Person 2
Affiliation	other
Function	other personnel other
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

After a normal landing and rollout on runway at ZZZ; we exited at taxiway B. Upon turning onto taxiway north; I felt a bump on the nose gear that felt like a bad place in the concrete. Upon arrival at the gate; we were informed by the ramp crew that we were missing the right nosewheel. The wheel was recovered by the ZZZ airport ground operations folks in the area where taxiway B intersects taxiway north. Callback conversation with reporter revealed the following information: reporter stated the right hand turn from the high speed taxiway was a normal 90 degree turn; nothing out of the ordinary. After they arrived at the gate; the ramp crew told them the right nose wheel was missing. After further inspection; maintenance realized the right nose wheel axle had sheared off; leaving approximately three inches of axle. Reporter stated he was surprised the axle for the right nose tire had broken when the actual loading of the nose gear would have been on the left wheel when making their right turn. The lower piston section of the nose gear strut was replaced and the aircraft released for service.

Original NASA ASRS Text

Title: AFTER NORMAL LANDING AND ROLL OUT OF THEIR B737-700 ACFT; PILOT FEELS A BUMP ON THE NOSE GEAR THAT FELT LIKE A BAD SPOT IN TAXIWAY CONCRETE. UPON ARRIVAL; RAMP CREW INFORMS PILOTS RIGHT NOSEWHEEL WAS MISSING.

Narrative: AFTER A NORMAL LNDG AND ROLLOUT ON RWY AT ZZZ; WE EXITED AT TXWY B. UPON TURNING ONTO TXWY N; I FELT A BUMP ON THE NOSE GEAR THAT FELT LIKE A BAD PLACE IN THE CONCRETE. UPON ARR AT THE GATE; WE WERE INFORMED BY THE RAMP CREW THAT WE WERE MISSING THE R NOSEWHEEL. THE WHEEL WAS RECOVERED BY THE ZZZ ARPT GND OPS FOLKS IN THE AREA WHERE TXWY B INTERSECTS TXWY N. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: REPORTER STATED THE RIGHT HAND TURN FROM THE HIGH SPEED TAXIWAY WAS A NORMAL 90 DEGREE TURN; NOTHING OUT OF THE ORDINARY. AFTER THEY ARRIVED AT THE GATE; THE RAMP CREW TOLD THEM THE RIGHT NOSE WHEEL WAS MISSING. AFTER FURTHER INSPECTION; MAINT REALIZED THE RIGHT NOSE WHEEL AXLE HAD SHEARED OFF; LEAVING APPROX THREE INCHES OF AXLE. REPORTER STATED HE WAS SURPRISED THE AXLE FOR THE RIGHT NOSE TIRE HAD BROKEN WHEN THE ACTUAL LOADING OF THE NOSE GEAR WOULD HAVE BEEN ON THE LEFT WHEEL WHEN MAKING THEIR RIGHT TURN. THE LOWER PISTON SECTION OF THE NOSE GEAR STRUT WAS REPLACED AND THE ACFT RELEASED FOR SERVICE.

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

After normal landing and roll out of their B737-700 aircraft; pilot feels a bump on the nose gear that felt like a bad spot in taxiway concrete. Upon arrival; ramp crew informs pilots right nosewheel was missing.