ERA21LA044

NTSB accident investigation · Cessna 305 · Ellenville, NY · November 14, 2020

Accident · No injuriesClass 4 · LimitedFinal report
Date
November 14, 2020, 12:00 local (17:00 UTC)
Place
Ellenville, NY
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5179GCessna 305
Defining event
Landing-landing roll: Sys/Comp malf/fail (non-power)
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
20201114014349A
Case key
102301

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 failure of the right brake master cylinder lock seal spring washer.

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: brakeAircraft › Aircraft systems · MalfunctionCessna 305A: 1 caseAll aircraft: 297 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 pilot of the tailwheel-equipped airplane was performing touch-and-go landings. During the third landing, the pilot noticed that right wheel began to “drag.” During the next landing, the airplane veered to the right side of the runway. The tail of the airplane then lifted and the airplane nosed over. The fuselage, wings, and vertical stabilizer were substantially damaged. After exiting the airplane, the pilot attempted to rotate the right wheel assembly, and it would not rotate. After about an hour the wheel assembly freed up and was able to rotate. A postaccident examination of the brake system revealed that the brake master cylinder lock seal spring had broken into three pieces. Given this information, it is likely that the broken lock seal spring washer prevented the master cylinder from releasing pressure from the caliper. This malfunction resulted in the right brake caliper staying engaged after the pilot released the brakes.

Aircraft

Registration
N5179G
Reported as
Cessna 305 (A)
Category
Airplane
Serial number
22272
Built
1951
Airframe hours
7,735
Engine
Continental O-470-11B, 213 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Utility
Last inspection
Annual · May 2, 2020 · 59 hours before
Departed
N89 · Ellenville, NY
Destination
Same as departure
Airport
N89 · Joseph Y Resnick Airport, runway 22, 3,838 × 75 ft, asphalt
Equipment
Electronic flight bag or handheld device, 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
25
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
986 total · 383 in this make and model · 898 as pilot in command · 23 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 37 °F
Altimeter
30.13 inHg
Observed at
MGJ, 13 nm away

Docket · 6

The files NTSB released with the investigation on June 24, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.1 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.

Other investigations on N5179G · 1

Matched to the same aircraft by N-number and date.