Nose gear collapse on rollout after landing.

Attributes
ACN	85285
Time
Date	198804
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dvt
State Reference	AZ
Altitude	msl bound lower : 0 msl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 5000
ASRS Report	85285
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 25 flight time total : 690
ASRS Report	85098
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After 2 touch and go lndgs on runway 10 at dvt, we changed to the south runway for a full stop landing. Gear was lowered on downwind prior to midpoint on the runway. Gear was verified down and locked on downwind, base and final (by both instrument and student). T/D was normal. On rollout landing gear warning horn sounded. Immediately after horn sounded nose settled to runway. This was the first flight on the aircraft since the annual inspection had been accomplished. Maintenance is investigating the reason for the failed nose gear. Callback conversation with reporter revealed the following: instrument was confident about aircraft in spite of age because this was first flight after annual inspection. No way possible failure or weld could have been detected with normal inspection procedures. Several ad's on gear lock problems complied with, but not really related to this incident. Trnee was licensed a&P.

Original NASA ASRS Text

Title: NOSE GEAR COLLAPSE ON ROLLOUT AFTER LNDG.

Narrative: AFTER 2 TOUCH AND GO LNDGS ON RWY 10 AT DVT, WE CHANGED TO THE S RWY FOR A FULL STOP LNDG. GEAR WAS LOWERED ON DOWNWIND PRIOR TO MIDPOINT ON THE RWY. GEAR WAS VERIFIED DOWN AND LOCKED ON DOWNWIND, BASE AND FINAL (BY BOTH INSTR AND STUDENT). T/D WAS NORMAL. ON ROLLOUT LNDG GEAR WARNING HORN SOUNDED. IMMEDIATELY AFTER HORN SOUNDED NOSE SETTLED TO RWY. THIS WAS THE FIRST FLT ON THE ACFT SINCE THE ANNUAL INSPECTION HAD BEEN ACCOMPLISHED. MAINT IS INVESTIGATING THE REASON FOR THE FAILED NOSE GEAR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: INSTR WAS CONFIDENT ABOUT ACFT IN SPITE OF AGE BECAUSE THIS WAS FIRST FLT AFTER ANNUAL INSPECTION. NO WAY POSSIBLE FAILURE OR WELD COULD HAVE BEEN DETECTED WITH NORMAL INSPECTION PROCS. SEVERAL AD'S ON GEAR LOCK PROBS COMPLIED WITH, BUT NOT REALLY RELATED TO THIS INCIDENT. TRNEE WAS LICENSED A&P.

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.