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20050117001619I

Incident · Minor damage
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FAA incident report · Beech 76 · Orlando, FL · January 17, 2005

FAA Aviation Safety Information Portal

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Date
January 17, 2005 · 17:04 local
Place
Orlando, FL
Airport
Orlando Sanford Airport
Phase of flight
Level Off Touchdown
Operating rules
General operating rules (Part 91)
Operator
VLCS
Damage
Minor damage
Aircraft
N3726D
Reported as
Beech 76
People aboard
2
Fatal injuries
0
Pilot’s flight hours
953 total123 in this make and model173 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.

(-23) Instructor and commercial student observed normal landing gear down & locked indications multiple times in preparation for crosswind landing. Upon touchdown on runway 9L at ksfb, the right main landing gear (rmlg) collapsed. Crosswind not a factor in gear collapse. Aircraft veered off runway to the right, coming to rest on a southerly heading in the grass just beyond taxiway l. no injuries were reported, but aircraft sustained minor damage, including right engine, prop, flap, and wingtip. Damage does not meet NTSB 830 criteria for "substantial damage". Aircraft placed on jacks in hangar for landing gear demonstration. Inspectors privacy data omitted observed down & locked microswitch on the rmlg jammed in the knee joint, effectively preventing the knee from locking over-center, yet presenting the crew with a down & locked indication in the cockpit. Maintenance technicians could only obtain a true down & locked condition on the rmlg by forcing the plunger of the microswitch into its housing, thereby freeing the jam and allowing the knee to progress to the over-center locked position. The demonstration was repeated several times with same result each time.

As the FAA filed it

(-23) INSTRUCTOR AND COMMERCIAL STUDENT OBSERVED NORMAL LANDING GEAR DOWN & LOCKED INDICATIONS MULTIPLE TIMES IN PREPARATION FOR CROSSWIND LANDING. UPON TOUCHDOWN ON RUNWAY 9L AT KSFB, THE RIGHT MAIN LANDING GEAR (RMLG) COLLAPSED. CROSSWIND NOT A FACTOR IN GEAR COLLAPSE. AIRCRAFT VEERED OFF RUNWAY TO THE RIGHT, COMING TO REST ON A SOUTHERLY HEADING IN THE GRASS JUST BEYOND TAXIWAY L. NO INJURIES WERE REPORTED, BUT AIRCRAFT SUSTAINED MINOR DAMAGE, INCLUDING RIGHT ENGINE, PROP, FLAP, AND WINGTIP. DAMAGE DOES NOT MEET NTSB 830 CRITERIA FOR "SUBSTANTIAL DAMAGE". AIRCRAFT PLACED ON JACKS IN HANGAR FOR LANDING GEAR DEMONSTRATION. INSPECTORS ^PRIVACY DATA^ OBSERVED DOWN & LOCKED MICROSWITCH ON THE RMLG JAMMED IN THE KNEE JOINT, EFFECTIVELY PREVENTING THE KNEE FROM LOCKING OVER-CENTER, YET PRESENTING THE CREW WITH A DOWN & LOCKED INDICATION IN THE COCKPIT. MAINTENANCE TECHNICIANS COULD ONLY OBTAIN A TRUE DOWN & LOCKED CONDITION ON THE RMLG BY FORCING THE PLUNGER OF THE MICROSWITCH INTO ITS HOUSING, THEREBY FREEING THE JAM AND ALLOWING THE KNEE TO PROGRESS TO THE OVER-CENTER LOCKED POSITION. THE DEMONSTRATION WAS REPEATED SEVERAL TIMES WITH SAME RESULT EACH TIME.