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20110104000059I

Incident · Minor damage
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FAA incident report · Beech A36 · Shreveport, LA · January 4, 2011

FAA Aviation Safety Information Portal

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Date
January 4, 2011 · 16:19 local
Place
Shreveport, LA
Phase of flight
Landing: Approach
Operating rules
General operating rules (Part 91)
Damage
Minor damage
Aircraft
N3045E
Reported as
Beech A36
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s flight hours
0 total0 in this make and model0 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Aircraft conducted a gear up landing. On approach into dtn airman notice the landing gear failed to extend electrically and the landing gear motor circuit breaker had popped. Airman notified tower of the problem, then placed gear handle in the up position to let the circuit breaker cool down. After cool down reset circuit breaker and placed gear handle in the down position, again the circuit breaker popped, airman tried this several times and each time the circuit popped. Airman reviewed the aircraft operating handbook for landing gear manual extension procedures. The manual gear extension handle while in the engaged position would not rotate counterclockwise as stated in the aircraft operating handbook or clockwise. Airman determined it was a mechanical failure a performed a gear up landing. Maintenance technician performed a visual inspection to detect any physical damage to the gear box, motor and gear retract mechanism, and none were detected. Technician observed that the gear up microswitch arm was pushed about ½ " further then normal, and that extreme force was on all linkages attached to the gear box. Own of the aircraft has not authorize the technician to perform any additional maintenance, but technician suspects components of gear up latching relay (K4), landing gear dynamic brake relay (K17), or all diodes installed in the up side electrical circuit.

As the FAA filed it

AIRCRAFT CONDUCTED A GEAR UP LANDING. ON APPROACH INTO DTN AIRMAN NOTICE THE LANDING GEAR FAILED TO EXTEND ELECTRICALLY AND THE LANDING GEAR MOTOR CIRCUIT BREAKER HAD POPPED. AIRMAN NOTIFIED TOWER OF THE PROBLEM, THEN PLACED GEAR HANDLE IN THE UP POSITION TO LET THE CIRCUIT BREAKER COOL DOWN. AFTER COOL DOWN RESET CIRCUIT BREAKER AND PLACED GEAR HANDLE IN THE DOWN POSITION, AGAIN THE CIRCUIT BREAKER POPPED, AIRMAN TRIED THIS SEVERAL TIMES AND EACH TIME THE CIRCUIT POPPED. AIRMAN REVIEWED THE AIRCRAFT OPERATING HANDBOOK FOR LANDING GEAR MANUAL EXTENSION PROCEDURES. THE MANUAL GEAR EXTENSION HANDLE WHILE IN THE ENGAGED POSITION WOULD NOT ROTATE COUNTERCLOCKWISE AS STATED IN THE AIRCRAFT OPERATING HANDBOOK OR CLOCKWISE. AIRMAN DETERMINED IT WAS A MECHANICAL FAILURE A PERFORMED A GEAR UP LANDING. MAINTENANCE TECHNICIAN PERFORMED A VISUAL INSPECTION TO DETECT ANY PHYSICAL DAMAGE TO THE GEAR BOX, MOTOR AND GEAR RETRACT MECHANISM, AND NONE WERE DETECTED. TECHNICIAN OBSERVED THAT THE GEAR UP MICROSWITCH ARM WAS PUSHED ABOUT ½ " FURTHER THEN NORMAL, AND THAT EXTREME FORCE WAS ON ALL LINKAGES ATTACHED TO THE GEAR BOX. OWN OF THE AIRCRAFT HAS NOT AUTHORIZE THE TECHNICIAN TO PERFORM ANY ADDITIONAL MAINTENANCE, BUT TECHNICIAN SUSPECTS COMPONENTS OF GEAR UP LATCHING RELAY (K4), LANDING GEAR DYNAMIC BRAKE RELAY (K17), OR ALL DIODES INSTALLED IN THE UP SIDE ELECTRICAL CIRCUIT.