MIA92LA189

NTSB accident investigation · Cessna 210L · Orlando, FL · September 21, 1992

Accident · No injuriesLimited investigationFinal report
Date
September 21, 1992, 15:47 local (19:47 UTC)
Place
Orlando, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N2013SCessna 210L
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 1993
Report
Approved by Office Director
FAA report
19920921037929A
Case key
33142

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Undetected chaffing and grounding of a wire to the nose landing gear squat switch which resulted in the landing gear being signalled at all times for gear up when electrical power was applied to the system. Contributing to the accident was the overheating of the gear down solenoid which caused it to stick in the gear up position and prevented the gear from being manually extended.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionApproach
Landing gear,gear switch - chafedCause
Landing gear,gear switch - closedCause
Landing gear,normal retraction/extension assembly - overtemperatureCause
Landing gear,normal retraction/extension assembly - jammedCause
Landing gear,emergency extension assembly - jammedCause
Gear extension - not possiblePilot in commandCause
Gear not extendedLanding - flare/touchdown

Analysis

Pilot stated that while attempting to extend the landing gear the gear hydraulic motor operated but the gear did not extend. After several seconds of gear motor operation the circuit breaker for the gear motor popped. Further attempts to extend the gear by normal and emergency procedures were unsuccessful. A gear up landing was made. After the accident the aircraft was raised and the landing gear was extended by use of the manual gear extension emergency hydraulic pump. According to maintenance personnel a wire to the nose landing gear squat switch was chaffed and grounded which caused the system to be signalled for gear up at all times. They further stated the pilot could not extend the gear by use of the backup hydraulic pump because the gear down solenoid had overheated during attempts to lower the gear and froze in the gear up position. After the solenoid cooled after landing they were able to manually lower the gear.

Aircraft

Registration
N2013S
Reported as
Cessna 210L
Category
Airplane
Serial number
21060981
Airframe hours
3,691
Engine
Continental IO-520-L3B, 285 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Flight Express, Inc.
Registered owner
Flight Express, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 17, 1992 · 9 hours before
Departed
PNS · Pensacola, FL
Destination
CEW · Crestview, FL
Flight plan
IFR
Airport
ORL · Orlando Executive, runway 7, 5,998 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,100 total · 600 in this make and model · 1,800 as pilot in command · 220 in the last 90 days · 80 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 5 knots
Visibility
10 statute miles
Lowest ceiling
4,700 ft broken
Temperature
90 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
ORL, 1 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.