ERA21LA315

NTSB accident investigation · Cessna 210N · Somerville, NJ · August 2, 2021

Accident · No injuriesClass 4 · LimitedFinal report
Date
August 2, 2021, 08:45 local (12:45 UTC)
Place
Somerville, NJ · on airport
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N52MMCessna 210N
Defining event
Landing: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20210802012369A
Case key
103618

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

On this page

Probable cause

The pilot’s failure to extend the landing gear, which resulted in a gear up landing and substantial damage to the fuselage.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Landing gear system: gear extension and retract sysAircraft › Aircraft systems · Not used/operatedCessna 210N: 3 casesAll aircraft: 416 casesProbable cause
Action: forgotten action/omissionPersonnel issues › Action/decision · PilotCessna 210N: 2 casesAll aircraft: 440 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The private pilot departed on a short flight to a local airport. He said he made a straight in approach and conducted a before landing checklist. Upon landing, the pilot realized the landing gear was still retracted as the airplane settled onto the runway, resulting in substantial damage to the lower fuselage. A postaccident examination of the airplane’s landing gear and gear warning horn by a mechanic found no preimpact mechanical malfunctions or failures that would have precluded normal operation. Though the pilot said he used the before-landing checklist, he failed to extend the landing gear and subsequently landed with the gear retracted.

Aircraft

Registration
N52MM
Reported as
Cessna 210N
Category
Airplane
Serial number
21064870
Built
1984
Airframe hours
4,979
Engine
Continental IO-550-LGB, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Happy Sky LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 12, 2021
Departed
LOJ · Linden, NJ
Destination
Same as departure
Airport
SMQ · Somerset, runway 08/26, 1,923 × 100 ft, asphalt
Equipment
Auto-pilot, Angle of attack indicator, ADS-B, Stall warning system

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
64
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
May 27, 2021
Seat
Left
Restraint
3-point
Flight hours
1,040.1 total · 60 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 5 knots
Visibility
8 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 61 °F
Altimeter
29.94 inHg
Observed at
KSMQ
METAR
KSMQ 021253Z AUTO 31005KT 8SM CLR 20/16 A2994

Docket · 3

The files NTSB released with the investigation on May 4, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 14.7 MB in all.

FAA reports on this event · 1

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