20140422012409A

Accident · Substantial damage

FAA accident report · Cessna 421 · Marble Falls, TX · April 22, 2014

Date: April 22, 2014 · 14:30 local
Place: Marble Falls, TX
Airport: Horseshoe Bay
Phase of flight: Landing: Approach
Operating rules: General operating rules (Part 91)
Damage: Substantial damage
Aircraft: N866BS
NTSB investigation: NTSBCEN14LA256
Reported as: Cessna 421
Reported engine: Continental GTSIO-520-C
People aboard: 1
Fatal injuries: 0
Other injuries: 0
Pilot’s certificate: Private pilot
Pilot’s flight hours: 2,150 total650 in this make and model1 in the last 90 days

N866BSRegistration cancelled Sep 4, 2014 · Cessna 421S/N 421-0072 · Built 1968 Airframe modelCessna 421 Engine modelContinental GTSIO-520-CReciprocating

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.

Pilot heard a loud pop upon selecting gear down. He was unable to obtain a green gear down indication following several attempts including emergency extension. Upon landing, right gear collapsed causing extensive damage to aircraft. There was no post crash fire or injury to pilot or property. Further investigation revealed landing gear transmission gear box (actuator) failed internally.

As the FAA filed it

PILOT HEARD A LOUD POP UPON SELECTING GEAR DOWN. HE WAS UNABLE TO OBTAIN A GREEN GEAR DOWN INDICATION FOLLOWING SEVERAL ATTEMPTS INCLUDING EMERGENCY EXTENSION. UPON LANDING, RIGHT GEAR COLLAPSED CAUSING EXTENSIVE DAMAGE TO AIRCRAFT. THERE WAS NO POST CRASH FIRE OR INJURY TO PILOT OR PROPERTY. FURTHER INVESTIGATION REVEALED LANDING GEAR TRANSMISSION GEAR BOX (ACTUATOR) FAILED INTERNALLY.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB CEN14LA256Accident · No injuriesLimited investigationFinal reportHorseshoe Bay, TXThe failure of the drive mechanism for the gearbox motor, which resulted in the gear not extending for the landing.Apr 22, 2014 · Substantial damage