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NTSB Report
January 19, 2011 · Cessna R182 NO Series · N6187S
Houston, TX
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
January 19, 2011
Injury Outcomes
No injuries (1 uninjured)
Location
Houston, TX
Aircraft
Cessna R182 NO Series
Tail Number
N6187S
Operator
Conversion Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN11CA155
The pilot was returning to the airport after a local maintenance flight. While completing the before-landing checklist, the pilot did not detect an incomplete gear extension. After touchdown, at 70 knots, both main landing gear legs collapsed. The nose gear remained extended during the event and the rear fuselage and left horizontal stabilizer contacted the concrete pavement. The operator's subsequent examination of the hydraulic power pack revealed that the electric pump motor was inoperative. The failure of the power pack before the end of the gear extension cycle would result in a fully extended nose gear and a partial extension of the main landing gear legs.
NTSB Probable Cause
The failure of the landing gear to fully extend and lock in the down position due to the inoperative electric pump motor.
Full Narrative
The pilot was returning to the airport after a local maintenance flight. During the before landing cockpit checks the pilot did not detect an incomplete gear extension. After touchdown, at about 70 knots, both main landing gear legs collapsed. The nose gear remained extended during the event and the rear fuselage and left horizontal stabilizer contacted the concrete pavement. The operator's subsequent examination of the hydraulic power pack showed the electric pump motor was inoperative. The failure of the power pack before the end of the gear extension cycle would result in a fully extended nose gear and a partial extension of the main landing gear legs.
Flight
Event TypeAccident
Event Time15:04 CST
Nearest AirportWilliam P. Hobby Airport (0nm)
Runway12L
Runway Length5148 ft
Runway Width100 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna R182 NO Series
Tail NumberN6187S
Aircraft CategoryAir
DamageSubstantial
OperatorConversion Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-540-J3C5D · Reciprocating · 235
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 32 · First Class · None
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 10 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F / 48
Altimeter29.98 inHg
Observation Time20:53
Weather SourceWFAC