A piper PA24 landing gear would not extend normally. Extended gear using emergency extension procedu...

Attributes
ACN	527023
Time
Date	200110
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cjr.airport
State Reference	VA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-24 Turbo Comanche
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 20 flight time total : 598 flight time type : 109
ASRS Report	527023
Events
Anomaly	aircraft equipment problem : critical ground encounters : gear up landing other anomaly other
Independent Detector	other other : person 1
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Landing gear failed to extend completely on downwind. Left pattern to deal with problem. Efforts to reset circuit breaker were unsuccessful. Elected to use emergency extension procedures. Emergency extension successful and green light was on. Made normal approach and landing. Gear collapsed (all 3) on rollout after landing. Callback conversation with reporter revealed the following information: the reporter stated on the downwind leg the landing gear failed to extend normally and the circuit breaker was found tripped. The reporter said the breaker was reset and did not restore the gear to normal operation. The reporter stated the gear was extended using the emergency manual procedures and the gear indication was green. The reporter said after touchdown and landing rollout all 3 landing gear collapsed. The reporter stated the initial cause is the electrical gear actuator and circuit breaker and the failure in the emergency extension was inadequate preload on the extension cables to extend the gear to the down and locked position. The reporter said the airplane incurred light lower fuselage skin damage, beat up propeller, and engine work.

Original NASA ASRS Text

Title: A PIPER PA24 LNDG GEAR WOULD NOT EXTEND NORMALLY. EXTENDED GEAR USING EMER EXTENSION PROCS. ON LNDG ROLLOUT, MAIN AND NOSE GEAR COLLAPSED.

Narrative: LNDG GEAR FAILED TO EXTEND COMPLETELY ON DOWNWIND. LEFT PATTERN TO DEAL WITH PROB. EFFORTS TO RESET CIRCUIT BREAKER WERE UNSUCCESSFUL. ELECTED TO USE EMER EXTENSION PROCS. EMER EXTENSION SUCCESSFUL AND GREEN LIGHT WAS ON. MADE NORMAL APCH AND LNDG. GEAR COLLAPSED (ALL 3) ON ROLLOUT AFTER LNDG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED ON THE DOWNWIND LEG THE LNDG GEAR FAILED TO EXTEND NORMALLY AND THE CIRCUIT BREAKER WAS FOUND TRIPPED. THE RPTR SAID THE BREAKER WAS RESET AND DID NOT RESTORE THE GEAR TO NORMAL OP. THE RPTR STATED THE GEAR WAS EXTENDED USING THE EMER MANUAL PROCS AND THE GEAR INDICATION WAS GREEN. THE RPTR SAID AFTER TOUCHDOWN AND LNDG ROLLOUT ALL 3 LNDG GEAR COLLAPSED. THE RPTR STATED THE INITIAL CAUSE IS THE ELECTRICAL GEAR ACTUATOR AND CIRCUIT BREAKER AND THE FAILURE IN THE EMER EXTENSION WAS INADEQUATE PRELOAD ON THE EXTENSION CABLES TO EXTEND THE GEAR TO THE DOWN AND LOCKED POS. THE RPTR SAID THE AIRPLANE INCURRED LIGHT LOWER FUSELAGE SKIN DAMAGE, BEAT UP PROP, AND ENG WORK.

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.

A piper PA24 landing gear would not extend normally. Extended gear using emergency extension procedures. On landing rollout, main and nose gear collapsed.