The pilot of a PA44 seminole has to resort to his emergency extension system when the landing gear main system motor keeps popping the circuit breaker while in descent for an approach to sny, northeast. Return land to apa, co.

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Attributes
ACN	561095
Time
Date	200209
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sny.airport
State Reference	NE
Altitude	agl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-44 Seminole Turbo Seminole
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Aircraft 2
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 1500 flight time type : 75
ASRS Report	561095
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	aircraft equipment problem : critical non adherence other other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : overrode automation flight crew : landed in emergency condition other
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Gear failed to extend during descent into sny, gear pump control circuit breaker tripped. Attempted reset 3 times but circuit breaker would not stay set. Gear would not extend. Other airplane nearby at sny observed gear up. Returned VFR to apa. Executed emergency gear extension checklist. Gear extended but no gear safe lights illuminated. Landed safely at apa. Gear breaker had been squawked on sep/tue/02 but shop could not duplicate. Previous CRM training played key role in positive outcome.

Original NASA ASRS Text

Title: THE PLT OF A PA44 SEMINOLE HAS TO RESORT TO HIS EMER EXTENSION SYS WHEN THE LNDG GEAR MAIN SYS MOTOR KEEPS POPPING THE CIRCUIT BREAKER WHILE IN DSCNT FOR AN APCH TO SNY, NE. RETURN LAND TO APA, CO.

Narrative: GEAR FAILED TO EXTEND DURING DSCNT INTO SNY, GEAR PUMP CTL CIRCUIT BREAKER TRIPPED. ATTEMPTED RESET 3 TIMES BUT CIRCUIT BREAKER WOULD NOT STAY SET. GEAR WOULD NOT EXTEND. OTHER AIRPLANE NEARBY AT SNY OBSERVED GEAR UP. RETURNED VFR TO APA. EXECUTED EMER GEAR EXTENSION CHKLIST. GEAR EXTENDED BUT NO GEAR SAFE LIGHTS ILLUMINATED. LANDED SAFELY AT APA. GEAR BREAKER HAD BEEN SQUAWKED ON SEP/TUE/02 BUT SHOP COULD NOT DUPLICATE. PREVIOUS CRM TRAINING PLAYED KEY ROLE IN POSITIVE OUTCOME.

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.