Nose gear collapses after experiencing '0' hydraulic pressure.

Attributes
ACN	322117
Time
Date	199511
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lyh
State Reference	VA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : rdg
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 80 flight time total : 3200 flight time type : 1430
ASRS Report	322117
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On approach to lyh from south, put on partial flaps to slow to gear speed, dropped gear about 5 mi out, '3 green' confirmed by copilot. 1 1/2 mi final went to full flaps, no response, noted hydraulic gauge '0,' circled to runway 21. Touched down on mains and held nose off 1 to 2 seconds. Nose gear touched and folded immediately. Slid down and off runway. No fire, no injuries. Propeller strikes all blades. Apparently the nose gear had not fully locked even though gear light was green. Mains stayed down and locked.

Original NASA ASRS Text

Title: NOSE GEAR COLLAPSES AFTER EXPERIENCING '0' HYD PRESSURE.

Narrative: ON APCH TO LYH FROM S, PUT ON PARTIAL FLAPS TO SLOW TO GEAR SPD, DROPPED GEAR ABOUT 5 MI OUT, '3 GREEN' CONFIRMED BY COPLT. 1 1/2 MI FINAL WENT TO FULL FLAPS, NO RESPONSE, NOTED HYD GAUGE '0,' CIRCLED TO RWY 21. TOUCHED DOWN ON MAINS AND HELD NOSE OFF 1 TO 2 SECONDS. NOSE GEAR TOUCHED AND FOLDED IMMEDIATELY. SLID DOWN AND OFF RWY. NO FIRE, NO INJURIES. PROP STRIKES ALL BLADES. APPARENTLY THE NOSE GEAR HAD NOT FULLY LOCKED EVEN THOUGH GEAR LIGHT WAS GREEN. MAINS STAYED DOWN AND LOCKED.

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.